Abstract
Soil bacteria are very important in biogeochemical cycles and have been used for crop production for decades. Plant–bacterial interactions in the rhizosphere are the determinants of plant health and soil fertility. Free-living soil bacteria beneficial to plant growth, usually referred to as plant growth promoting rhizobacteria (PGPR), are capable of promoting plant growth by colonizing the plant root. PGPR are also termed plant health promoting rhizobacteria (PHPR) or nodule promoting rhizobacteria (NPR). These are associated with the rhizosphere, which is an important soil ecological environment for plant–microbe interactions. Symbiotic nitrogen-fixing bacteria include the cyanobacteria of the genera Rhizobium, Bradyrhizobium, Azorhizobium, Allorhizobium, Sinorhizobium and Mesorhizobium. Free-living nitrogen-fixing bacteria or associative nitrogen fixers, for example bacteria belonging to the species Azospirillum, Enterobacter, Klebsiella and Pseudomonas, have been shown to attach to the root and efficiently colonize root surfaces. PGPR have the potential to contribute to sustainable plant growth promotion. Generally, PGPR function in three different ways: synthesizing particular compounds for the plants, facilitating the uptake of certain nutrients from the soil, and lessening or preventing the plants from diseases. Plant growth promotion and development can be facilitated both directly and indirectly. Indirect plant growth promotion includes the prevention of the deleterious effects of phytopathogenic organisms. This can be achieved by the production of siderophores, i.e. small metal-binding molecules. Biological control of soil-borne plant pathogens and the synthesis of antibiotics have also been reported in several bacterial species. Another mechanism by which PGPR can inhibit phytopathogens is the production of hydrogen cyanide (HCN) and/or fungal cell wall degrading enzymes, e.g., chitinase and ß-1,3-glucanase. Direct plant growth promotion includes symbiotic and non-symbiotic PGPR which function through production of plant hormones such as auxins, cytokinins, gibberellins, ethylene and abscisic acid. Production of indole-3-ethanol or indole-3-acetic acid (IAA), the compounds belonging to auxins, have been reported for several bacterial genera. Some PGPR function as a sink for 1-aminocyclopropane-1-carboxylate (ACC), the immediate precursor of ethylene in higher plants, by hydrolyzing it into α-ketobutyrate and ammonia, and in this way promote root growth by lowering indigenous ethylene levels in the micro-rhizo environment. PGPR also help in solubilization of mineral phosphates and other nutrients, enhance resistance to stress, stabilize soil aggregates, and improve soil structure and organic matter content. PGPR retain more soil organic N, and other nutrients in the plant–soil system, thus reducing the need for fertilizer N and P and enhancing release of the nutrients.
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References
Abd-Alla MH (1994a) Solubilization of rock phosphates by Rhizobium and Bradyrhizobium. Folia Microbiol 39:53–56
Abd-Alla MH (1994b) Use of organic phosphorus by Rhizobium leguminosarum biovar. viceae phosphatases. Biol Fertil Soils 18:216–218
Abou-Shanab RAI, Angle JS, Chaney RL (2006) Bacterial inoculants affecting nickel uptake by Alyssum murale from low, moderate and high Ni soils. Soil Biol Biochem 38:2882–2889
Ahmad F, Ahmad I, Khan MS (2005) Indole acetic acid production by the indigenous isolates of Azotobacter and Flourescent pseudomonas in the presence and absence of tryptophan. Turk J Biol 29:29–34
Alvarez MI, Sueldo RJ, Barassi CA (1996) Effect of Azospirillum on coleoptile growth in wheat seedlings under water stress. Cereal Res Commun 24:101–107
Angle JS (1986) Pectic and proteolytic enzymes produced by fast-and slow-growing soybean Rhizobia. Soil Biol Biochem 18:115–116
Anjum MA, Sajjad MR, Akhtar N, Qureshi MA, Iqbal A, Jami AR, Hassan M (2007) Response of cotton to plant growth promoting rhizobacteria (PGPR) inoculation under different levels of nitrogen. J Agric Res 45(2):135–143
Antoun H, Beauchamp CJ, Goussard N, Chabot R, Lalande R (1998) Potential of Rhizobium and Bradyrhizobium species as plant growth promoting rhizobacteria on non-legumes: effect on radishes (Raphanus sativus L). Plant Soil 204:57–68
Arora P, Gaur AC (1979) Microbial solubilization of different inorganic phosphates. Indian J Exp Biol 17:1258–1261
Arshad M, Frankenberger WT Jr (1991) Effects of soil properties and trace elements on ethylene production in soils. Soil Sci 151:377–386
Arshad M, Frenkenberger WT Jr (1993) Microbial production of plant growth regulators. In: Meeting FB Jr (ed) Soil microbial ecology. Dekker, New York, pp 307–347
Arshad M, Frankenberger WT Jr (1998) Plant growth regulating substances in the rhizosphere. Microbial production and function. Adv Agron 62:46–51
Asghar HN, Zahir ZA, Arshad M, Khaliq A (2002) Relationship between in vitro production of auxins by rhizobacteria and their growth-promoting activities in brassica junceal. Biol Fertil Soils 35(23):1–237
Babu-Khan S, Yeo C, Martin WL, Duron MR, Rogers R, Goldstein A (1995) Cloning of a mineral phosphate-solubilizing gene from Pseudomonas cepacia. Appl Environ Microbiol 61:972–978
Balandreau J (2002) The spermosphere model to select for plant growth promoting rhizobacteria. In: Kennedy IR, Choudhury ATMA (eds) Biofertilisers in action. Rural Industries Research and Development Corporation, Canberra, pp 55–63
Baldani VLD, Baldani JI, Dobereiner J (2000) Inoculation of rice plants with the endophytic diazotrophs Herbaspirillums seropidicae. Biol Fertil Soils 30:485–491
Banerjee MR, Yasmin L (2002) Sulfur oxidizing rhizobacteria: an innovative environment friendly soil biotechnological tool for better canola production. Proceeding of AGROENVIRON. Cairo, Egypt, 2002, October 26–29, pp 1-7
Banerjee MR, Yesmin L, Vessey JK (2006) Plant growth promoting rhizobacteria as biofertilizers and biopesticides. In: Rai MK (ed) Handbook of microbial biofertilizers. Haworth Press, New York
Banik S, Dey BK (1982) Available phosphate content of an alluvial soil is influenced by inoculation of some isolated phosphate-solubilizing microorganisms. Plant Soil 69:353–364
Barassi CA, Creus CM, Casanovas EM, Sueldo RJ (2000) Could Azospirillum mitigate abiotic stress effects in plants? Auburn University. Web site: http://www.ag.auburn.edu/argentina/pdfmanuscripts/brassi.pdf
Barea JM, Navarro E, Montoya E (1976) Production of plant growth regulators by rhizosphere phosphate solubilizing bacteria. J Appl Bacteriol 40:129–134
Bashan Y (1998) Azospirillum plant growth-promoting strains are nonpathogenic on tomato, pepper, cotton, and wheat. Can J Microbiol 44:168–174
Beneduzi A, Peres D, Vargas LK, Bodanese-Zanettini MH, Passaglia LMP (2008) Evaluation of genetic diversity and plant growth promoting activities of nitrogen-fixing Bacilli isolated from rice fields in South Brazil. Appl Soil Ecol 39:311–320
Biederbeck VO, Lupwayi NZ, Haanson KG, Rice WA, Zentner RP (2000) Effect of long-term rotation with lentis on rhizosphere ecology and on endophytic Rhizobia in wheat. Abstract of the 17th North American Conference on Symbiotic Nitrogen Fixation. Laval University Quebec, Canada, pp 23–28, July 2000
Biswas JC, Ladha JK, Dazzo FB, Yanni YG, Rolf BG (2000) Rhizobial inoculation influences seedling vigor and yield of rice. Agron J 90:880–886
Bloemberg GV, Lugtenberg BJJ (2001) Molecular basis of plant growth promotion and biocontrol by rhizobacteria. Curr Opin Plant Biol 4:343–350
Boddey RM, Urquiaga S, Reis V, Döbereiner J (1991) Biological nitrogen fixation associated with sugar cane. Plant Soil 137:111–117
Bottomley PJ, Dughri MH (1989) Population size and distribution of Rhizobium leguminosarum biovar trifolii in relation to total soil bacteria and soil depth. Appl Environ Microbiol 55:959–964
Bottomley PJ, Maggard SP (1990) Determination of viability within serotypes of a soil population of Rhizobium leguminosarum biovar trifolii. Appl Environ Microbiol 56:533–540
Boyer GL, Kane SA, Alexander JA, Aronson DB (1999) Siderophore formation in iron-limited cultures of Frankia sp. strain 52065 and Frankia sp. strain CeSI5. Can J Bot 77:1316–1320
Brannen PM, Backman PA (1994) Suppression of Fusarium wilt of cotton with Bacillus subtilis hopper box formulations. In: Ryder MH, Stephens PM, Bowen GD (eds) Improving plant productivity with rhizosphere bacteria, proceedings from the third international workshop on plant growth-promoting rhizobacteria. CSIRO Press, Adelaide, pp 83–85
Brierley JA (1985) Use of microorganisms for mining metals. In: Halvorson HO, Pramer D, Rogul M (eds) Engineered organisims in the environment: scientifc issues. ASM Press, Washington, pp 141–146
Brown ME (1974) Seed and root bacterization. Annu Rev Phytopathol 12:181–197
Burd G, Dixon DG, Glick BR (2000) Plant growth promoting bacteria that decrease heavy metal toxicity in plants. Can J Microbiol 46:237–245
Burns RG (1983) Extracellular enzyme-substrate interactions in soil. In: Slater JH, Whittenbury R, Wimpenny JWT (eds) Microbes in their natural environment. Cambridge University Press, Cambridge, pp 249–298
Burr TJ, Caesar A (1984) Beneficial plant bacteria. Crit Rev Plant Sci 2:1–20
Çakmakçi R, Dönmez F, Aydın A, Şahin F (2006) Growth promotion of plants by plant growth-promoting rhizobacteria under greenhouse and two different field soil conditions. Soil Biol Biochem 38:1482–1487
Çakmakçi R, Erat M, Erdoğan ÜG, Dönmez MF (2007) The influence of PGPR on growth parameters, antioxidant and pentose phosphate oxidative cycle enzymes in wheat and spinach plants. J Plant Nutr Soil Sci 170:288–295
Callegan RP, Nobre MF, McTernan PM, John BR, Navarro-González R, McKay CP, da Costa MS, Rainey FA (2008) Description of four novel psychrophilic, ionizing radiation-sensitive Deinococcus species from alpine environments. Int J Syst Evol Microbiol 58:1252–1258
Cattelan AJ, Hartel PG, Fuhrmann JJ (1999) Screening for plant growth rhizobacteria to promote early soybean growth. Soil Sci Soc Am J 63:1670–1680
Chabot R, Antoun H, Cescas MP (1996a) Growth promotion of maize and lettuce by phosphate-solubilizing Rhizobium leguminosarum biovar phaseoli. Plant Soil 184:311–321
Chabot R, Antoun H, Kloepper JW, Beauchamp CJ (1996b) Root colonization of maize and lettuce by bioluminescent Rhizobium leguminosaurm biovar phaseoli. Appl Environ Microbiol 62:2767–2772
Chaintreuil C, Giraud E, Prin Y, Lorquin J, Ba A, Gillis M, deLajudie P, Dreyfus B (2000) Photosynthetic bradyRhizobia are natural endophytes of the African wild rice Oryza breviligulata. Appl Environ Microbiol 66:5437–5447
Chandra S, Choure K, Dubey RC, Maheshwari DK (2007) Rhizosphere competent Mesorhizobium loti MP6 induces root hair curling, inhibits Sclerotinia sclerotiorum and enhances growth of Indian mustard (Brassica campestris). Braz J Microbiol 38:124–130
Chatterjee AK, Buchanan GE, Behrens MK, Starr MP (1978) Synthesis and excretion of polygaracturonic and transeliminase in Erwinia, Yersinia, and Klebsiella species. Can J Microbiol 25:94–102
Chen YP, Rekha PD, Arun AB, Shen FT, Lai WA, Young CC (2006) Phosphate solubilizing bacteria from subtropical soil and their tricalcium phosphate solubilizing abilities. Appl Soil Ecol 34:33–41
Chin-A-Woeng TFC, Bloemberg GV, Lugtenberg BJJ (2003) Phenazines and their role in biocontrol by Pseudomonas bacteria. New Phytol 157:503–523
Cleland RE (1990) Auxin and cell elongation. In: Davies PJ (ed) Plant hormones and their role in plant growth and development. Kluwer, Dordrecht, pp 132–148
Cleyet-Marcel JC, Larcher M, Bertrand H, Rapior S, Pinochet X (2001) Plant growth enhancement by rhizobacteria. In: MorotGaudry JF (ed) Nitrogen assimilation by plants: physiological, biochemicval and molecular aspects. Science Publishers, Plymouth, pp 185–197
Cocking EC (2003) Endophytic colonization of plant roots by nitrogen-fixing bacteria. Plant Soil 252(1):169–175
Dakora FD (1995) Plant flavonoids: biological molecules for useful exploitation. Aust J Plant Physiol 22:7–99
Dakora FD (2003) Defining new roles for plant and rhizobial molecules in sole and mixed plant cultures involving symbiotic legumes. New Phytol 158:39–49
Dangar TK, Basu PS (1987) Studies on plant growth substances, IAA metabolism and nitrogenase activity in root nodules of Phaseolus aureus Roxb. var. mungo. Biol Plant 29:350–354
Davies PJ (1995) The plant hormones: their nature, occurrence, and functions. In: Davies PJ (ed) Plant hormones: physiology, biochemistry, and molecular biology, 2nd edn. Kluwer, Dordrecht, pp 1–12
Davison J (1988) Plant beneficial bacteria. Biotechnology 6:282–286
Dazzo FB, Yanni YG, Rizk R, De Bruijn FJ, Rademaker J, Squartini A, Corich V, Mateos P, Martinez-Molina E et al (2000) Progress in multinational collaborative studies on the beneficial association between Rhizobium Ieguminosarum by trifolii and rice. In: Ladha JK, Reddy PM (eds) The quest for nitrogen fixation in rice. IRR1, Los Banos, Philippines, pp 167–189
De Freitas JR, Banerjee MR, Germida JJ (1997) Phosphate-solubilizing rhizobacteria enhance the growth and yield but not phosphorus uptake of canola (Brassica napus L.). Biol Fertil Soils 24:358–364
Dell’Amico E, Cavalca L, Andreoni V (2008) Improvement of Brassica napus growth under cadmium stress by cadmium-resistant rhizobacteria. Soil Biol Biochem 40:74–84
Delvasto P, Valverde A, Ballester A, Muñoz JA, González F, Blázquez ML, Igual JM, García-Balboa C (2008) Diversity and activity of phosphate bioleaching bacteria from a high-phosphorus iron ore. Hydrometallurgy 92:124–129
Deng S, Summers ML, Kahn ML, McDermontt TR (1998) Cloning and characterization of a Rhizobium meliloti nonspecific acid phosphatase. Arch Microbiol 170:18–26
Deng S, Elkins JG, Da LH, Botero LM, McDermott TR (2001) Cloning and characterization of a second acid phosphatase from Sinorhizobium meliloti strain 104A14. Arch Microbiol 176:255–263
Dey R, Pal KK, Bhatt DM, Chauhan SM (2004) Growth promotion and yield enhancement of peanut (Arachis hypogaea L) by application of plant growth promoting rhizobacteria. Microbiol Res 159:371–394
Dimkpa C, Aleš S, Dirk M, Georg B, Erika K (2008) Hydroxamate siderophores produced by Streptomyces acidiscabies E13 bind nickel and promote growth in cowpea (Vigna unguiculata L.) under nickel stress. Can J Microb 54:163–172
Dobbelaere S, Vanderleyden J, Okon Y (2003) Plant growth-promoting effects of diazotrophs in the rhizosphere. Crit Rev Plant Sci 22:107–149
Duff RB, Webley DM (1959) 2-Ketogluconic acid as a natural chelator produced by soil bacteria. Chem Ind 1376-1377
Dutta S, Mishra AK, Kuma BSD (2008) Induction of systemic resistance against fusarial wilt in pigeon pea through interaction of plant growth promoting rhizobacteria and rhizobia. Soil Biol Biochem 40:452–461
Dwivedi D, Johri BN (2003) Antifungals from fluorescent pseudomonads: biosynthesis and regulation. Curr Sci 12:1693–1703
Egamberdiyeva D (2005) Plant growth promoting rhizobacteria isolated from a calsisol in semi arid region of Uzbekistan: biochemical characterization and effectiveness. J Plant Nutr Soil Sci 168:94–99
Ehrlich HL (1990) Geomicrobiology, 2nd edn. Dekker, New York, p 646
Ehteshamul-Haque S, Ghaffar A (1993) Use of Rhizobia in the control of root diseases of sunflower, okra, soybean and mungbean. J Phytopathol 138:157–163
Elbadry M, El-Bassel A, Elbanna K (1999) Occurrence and dynamics of phototrophic purple nonsulphur bacteria compared with other asymbiotic nitrogen fixers in rice fields of Egypt. World J Microbiol Biotechnol 15:359–362
El-Khawas H, Adachi K (1999) Identification and quantification of auxins in culture media of Azospirillum and Klebsiella and their effect on rice roots. Biol Fertil Soils 28:377–381
El Mohandes MAO (1999) The use of associative diazotrophs with different rates of nitrogen fertilization and compost to enhance growth and N2-fixation of wheat. Bulletin of Faculty of Agriculture, University of Cairo 50:729-753
Esashi Y (1991) Ethylene and seed germination. In: Matoo AK, Suttle JC (eds) The plant hormone ethylene. CRC Press, Boca Raton, pp 133–157
Estrada-delos Station P, Bustitio-Cristales R, Caballero-Mallado J (2001) Burkholderia, a genus rich in plant-associated nitrogen fixers with wide environmental and geographic distribution. Appl Environ Microbiol 67:279–2798
Fallik E, Sarig S, Okon Y (1994) Morphology and physiology of plant roots associated with Azospirillum. In: Okon Y (ed) Azospirillum-plant associations. CRC Press, Boca Raton, pp 77–84
Fayez M, Daw ZY (1987) Effect of inoculation with different strains of Azospirillum brasilense on cotton (Gossypium barbadense). Biol Fertil Soils 4(9):1–95
Fraga R, Rodríguez H, Gonzalez T (2001) Transfer of the gene encoding the Nap A acid phosphatase from Morganella morganii to a Burkholderia cepacia strain. Acta Biotechnol 21:359–369
Frankenberger WTJ, Arshad M (1995) Photohormones in soil: microbial production and function. Dekker, New York, p 503
Friedlander AM, Welkos SL, Pitt MLM, Ezzell JW, Worsham PL, Rose KJ (1993) Postexposure prophylaxis against experimental inhalation anthrax. J Infect Dis 167:1239–1242
Galal YGM, El-Ghandour IA, Aly SS, Soliman S, Gadalla A (2000) Non-isotopic method for the quantification of biological nitrogen fixation and wheat production under field conditions. Biol Fertil Soils 32:47–51
Ganguly TK, Jana AK, Moitra DN (1999) An evaluation of agronomic potential of Azospirillum brasilense and Bacillus megaterium in fibre-legume-cereal system in an Aeric haplaquept. Indian J Agric Res 33:35–39
García de Salamone IE, Hynes RK, Nelson LM (2001) Cytokinin production by plant growthpromoting rhizobacteria and selected mutants. Can J Microbiol 47(5):404–411
Gilreath JP, Noling JW, Mirusso J, Nance J, Eger J, Gilreath P (2001) Telone and herbicides: do's, don’ts, and maybe's-a primer for tomorrow's farmer. FACTS Proceedings of the IFAS, University of Florida, pp 37-40
Glick BR (1995) The enhancement of plant growth by free-living bacteria. Can J Microbiol 41:109–117
Glick BR (2001) Phytoremediation: synergistic use of plants and bacteria to cleanup the environment. Biotechnol Adv 21(3):83–393
Glick BR, Pasternak JJ (2003) Plant growth promoting bacteria. In: Glick BR, Pasternak JJ (eds) Molecular biotechnology principles and applications of recombinant DNA, 3rd edn. ASM Press, Washington, pp 436–454
Glick BR, Penrose DM, Li J (1998) A model for lowering plant ethylene concentration by plant growth promoting rhizobacteria. J Theor Biol 190:63–68
Goldstein AH (1986) Bacterial solubilization of microbial phosphates: a historical perspective and future prospects. Am J Altern Agric 1:51–57
Goldstein AH (1994) Involvement of the quinoprotein glucose dehydrogenase in the solubilization of exogenous mineral phosphates by Gram negative bacteria. In: Torriani-Gorni A, Yagil E, Silver S (eds) Phosphate in microorganisms: cellular and molecular biology. ASM Press, Washington, pp 197–203
Goldstein AH (1995) Recent progress in understanding the molecular genetics and biochemistry of calcium phosphate solubilization by Gram negative bacteria. Biol Agric Hortic 12:185–193
Goldstein AH (2007) Future trends in research on microbial phosphate solubilization: one hundred years of insolubility. In: Velázquez E, Rodríguez-Barrueco C (eds) First international meeting on microbial phosphate solubilization. Springer, Dordrecht, pp 91–96
Goldstein AH, Liu ST (1987) Molecular cloning and regulation of a mineral phosphate solubilizing gene from Erwinia herbicola. Biotechnology 5:72–74
Goldstein AH, Krishnaraj PU (2007) Phosphate solubilizing microorganisms vs. phosphate mobilizing microorganisms: what separates a phenotype from a trait? In: Velázquez E, Rodríguez-Barrueco C (eds) First International meeting on microbial phosphate solubilization. Springer, Dordrecht, pp 203–213
Golovan S, Wang G, Zhang J, Forsberg CW (2000) Characterization and over production of the Escherichia coli appA encoded bifunctional enzyme that exhibits both phytase and acid phosphatase activities. Can J Microbiol 46:59–71
Goris J, De Vos P, Coenye T, Hoste B, Janssens D, Brim H, Diels L, Mergeay M, Kersters K, Vandamme P (2001) Classification of metal-resistant bacteria from industrial biotopes as Ralstonia campinensis sp. nov., Ralstonia metallidurans sp. nov and Ralstonia basilensis. Int J Syst Evol Microbiol 51:1773–1782
Gray EJ, Smith DL (2005) Intracellular and extracellular PGPR: commonalities and distinctions in the plant-bacterium signaling processes. Soil Biol Biochem 37:395–412
Gügi B, Orange N, Hellio F, Burini JF, Guillou C, Leriche F, Guespin-Michel JF (1991) Effect of growth temperature on several exported enzyme activities in the psychrotropic bacterium Pseudomonas fluorescens. J Bacteriol 173:3814–3820
Guo JH, Qi HY, Guo YH, Ge HL, Gong LY, Zhang LX (2004) Biocontrol of tomato wilt by plant growth promoting rhizobacteria. Biol Control 29:66–72
Gupta CP, Dubey RC, Maheshwari DK (2002) Plant growth enhancement and suppression of Macrophomina phaseolina causing charcoal rot of peanut by fluorescent Pseudomonas. Biol Fertl Soil 35:295–301
Gutiérrez-Mañero FG, Ramos-solano B, Probanza A, Mehouachi J, Tadeo FR, Talon M (2001) The plant-growth promoting rhizobacteria Bacillus pumilus and Bacillus licheniformis produce high amounts of physiologically active gibberellins. Physiol Plant 111:206–211
Haansuu P, Vuorela P, Haahtela K (1999) Detection of antimicrobial and 45Ca2+-transport blocking activity in Frankia culture broth extracts. Pharm Pharmacol Lett 1:1–4
Hagen G (1990) The control of gene expression by auxin. In: Davies PJ (ed) Plant hormones and their role in plant growth and development. Kluwer, Dordrecht, pp 149–163
Halder AK, Chakrabarty PK (1993) Solubilization of inorganic phosphate by Rhizobium. Folia Microbiol 38:325–330
Halder AK, Mishra AK, Bhattacharya P, Chakrabarthy PK (1990) Solubilization of rock phosphate by Rhizobium and Bradyrhizobium. J Gen Appl Microbiol 36(8):1–92
Halder AK, Misra AK, Chakrabarty PK (1991) Solubilization of inorganic phosphates by Bradyrhizobium. Indian J Exp Biol 29:28–31
Hardarson G (1993) Methods for enhancing symbiotic nitrogen fixation. Plant Soil 152:1–17
Hass D, Keel C (2003) Regulation of antibiotic production in root-colonizing Pseudomonas sp. and relevance for biological control of plant disease. Annu Rev Phytopathol 41:117–153
Hayat R (2005) Sustainable legume cereal cropping system through management of biological nitrogen fixation in Pothwar. PhD Dissertation. PMAS Arid Agriculture University, Rawalpindi, Pakistan
Hayat R, Ali S (2004) Potential of summer legumes to fix nitrogen and benefit wheat crop under rainfed condition. J Agronomy 3:273–281.
Hayat R, Ali S (2010) Nitrogen fixation of legumes and yield of wheat under legumes-wheat rotation in Pothwar. Pak J Bot 42(3): in press
Hayat R, Ali S, Siddique MT, Chatha TH (2008a) Biological nitrogen fixation of summer legumes and their residual effects on subsequent rainfed wheat yield. Pak J Bot 40(2):711–722
Hayat R, Ali S, Ijaz SS, Chatha TH, Siddique MT (2008b) Estimation of N2-fixation of mung bean and mash bean through xylem uriede technique under rainfed conditions. Pak J Bot 40(2):723–734
Hegazi NA, Faye M, Amin G, Hamza MA, Abbas M, Youssef H, Monib M (1998) Diazotrophs assoiciated with non-legumes grown in sandy soil. In: Malik KA, Mirza MS, Ladha JK (eds) Nitrogen fixation with non-legumes. Kulwer, Dordrecht, pp 209–222
Herman MAB, Nault BA, Smart CD (2008) Effects of plant growth promoting rhizobacteria on bell pepper production and green peach aphid infestation in New York. Crop Prot 27:996–1002
Herridge DF, Marcellos H, Felton WL, Turner GL, Peoples MB (1993) Legume N2 fixation an efficient source of N for cereal production, Nuclear methods in soil-plant aspects of sustainable agriculture (Proc. Sem. Colombo, 1993). IAEA, Vienna
Hesselmann RPX, Werlen C, Hahn D, van der Meer JR, Zehnder AJB (1999) Enrichment, phylogenetic analysis and detection of a bacterium that performs enhanced biological phosphate removal in activated sludge. Syst Appl Microbiol 22:454–465
Hilali A, Przrost D, Broughton WJ, Antoun A (2000) Potential use of Rhizobium leguminosarum by trifoli as plant growth promoting rhizobacteria with wheat. In: Abstract of the I7th North American conference on symbiotic nitrogen fixation. Laval University, Quebec, Canada, pp 23-28
Hilali A, Prevost D, Broughton WJ, Anloun H (2001) Effects of in-oculation avec des souches de Rhizobium leguminosarum biovar trifolii sur la croissance du ble dans deux sols du Maroc. Can J Microbiol 47:590–593
Hoflich G (2000) Colonization and growth promotion of non-legumes by Rhizobium bacteria. Micobial biosystems: new prontiers. In: Bell CR, Brylinsky M, Johnson-Green P (eds) Proceedings of the 8th international symposium on microbial ecology. Atlantic Canada Soc, Microbial Ecol., Halifax, Canada, pp 827-830
Hoflich G, Wiehe W, Kohn G (1994) Plant growth stimulation by inoculation with symbiotic and associative rhizosphere microorganisms. Experienca 50:897–905
Hoflich G, Wiehe W, Hecht-Buchholz CC (1995) Rhizosphere colonization of different crops with growth promoting Pseudomonas and Rhizobium bacteria. Microbiol Res 150:139–147
Huang XD, El-Alawi Y, Penrose DM, Glick BR, Greenberg BM (2004) A multiprocess phytoremediation system for removal of polycyclic aromatic hydrocarbons from contaminated soils. Environ Pollut 130:465–476
Huang XD, El-Alawi Y, Gurska J, Glick BR, Greenberg BM (2005) A multi-process phytoremediation system for decontamination of persistent total petroleum hydrocarbons (TPHs) from soils. Microchem J 81:139–147
Hurek T, Reinhold-Hurek B, Van Montagu M, Kellenberger E (1994) Root colonization and systemic spreading of Azoarcus sp. strain BH72 in grasses. J Bacteriol 176:1913–1923
Hynes RK, Leung GCY, Hirkala DLM, Nelson LM (2008) Isolation, selection, and characterization of beneficial rhizobacteria from pea, lentil and chickpea grown in western Canada. Can J Microb 54:248–258
Idriss EE, Makarewicz O, Farouk A, Rosner K, Greiner R, Bochow H, Richter T, Borriss R (2002) Extracellular phytase activity of Bacillus amyloliquefaciens FZB45 contributes to its plant-growth-promoting effect. Microbiology 148:2097–2109
Igual JM, Valverde A, Cervantes E, Velázquez E (2001) Phosphate-solubilizing bacteria as inoculants for agriculture: use of updated molecular techniques in their study. Agronomie 21:561–568
Illmer P, Schinner F (1992) Solubilization of inorganic phosphates by microorganisms isolated from forest soil. Soil Biol Biochem 24:389–395
Iruthayaraj MR (1981) Let Azotobacter supply nitrogen to cotton. Intensive Agric 19-23
Islam N, Rao CVS, Kennedy IR (2002) Facilitating a N2-fixing symbiosis between diazotrophs and wheat. In: Kennedy IR, Choudhury ATMA (eds) Biofertilisers in action. Rural Industries Research and Development Corporation, Canberra, pp 84–93
Jackson MB (1991) Ethylene in root growth and development. In: Matoo AK, Suttle JC (eds) The plant hormone ethylene. CRC Press, Boca Raton, pp 159–181
Jadhav RS, Thaker NV, Desai A (1994) Involvement of the siderophore of cowpea Rhizobium in the iron nutrition of the peanut. World J Microbiol Biotechnol 10:360–361
James EK, Reis VM, Olivares FL, Baldani JI, Döbereiner J (1994) Infection of sugar cane by the nitrogen-fixing bacterium Acetobacter diazotrophicus. J Exp Bot 45:757–766
James EK, Gyaneshwar P, Barraquio WL, Mathan N, Ladha JK (2000) Endophytic diazotrophs associated with rice. In: Ladha JK, Reddy PM (eds) The quest for nitrogen fixation in rice. International Rice Research Institute, Los Banõs, pp 119–140
Jetiyanon K, Kloepper JW (2002) Mixtures of plant growth promoting rhizobacteria for induction of systemic resistance against multiple plant diseases. Biol Control 24:285–291
Joo GJ, Kin YM, Kim JT, Rhee IK, Kim JH, Lee IJ (2005) Gibberellins producing rhizobacteria increase endogenous gibberellins content and promote growth of red peppers. J Microbiol 43(6):510–515
Kajar B, Jensen J (1995) The inheritance of nitrogen and phosphorous content in barley analyzed by genetic markers. Heriditas 123:109–119
Kanungo PK, Panda D, Adhya TK, Ramakrishnan B, Rao VR (1997) Nitrogenase activity and nitrogen fixing bacteria associated with rhizosphere of rice cultivars. J Sci Food Agric 73:485–488
Keating JDH, Chapmanian N, Saxena MC (1998) Effect of improved management of legumes in a legume-cereal rotation on field estimates of crop nitrogen uptake and symbiotic nitrogen fixation in northern Syria. J Agric Sci 110:651–659
Kempster VN, Scott ES, Davies KA (2002) Evidance for systematic, cross-resistance in white clover (Trifolium repens) and annual medic (Medicago truncatula var truncatula) induced by biological and chemical agents. Biocontrol Sci Technol 12(5):615–623
Kennedy IR, Tchan Y (1992) Biological nitrogen fixation in no leguminous field crops: recent advances. Plant Soil 141:93–118
Kennedy IR, Islam N (2001) The current and potential contribution of asymbiotic nitrogen requirements on farms: a review. Aust J Exp Agric 41:447–457
Kennedy IR, Pereg-Gerk LL, Wood C, Deaker R, Glichrist K, Katupitiya S (1997) Biological nitrogen fixation in non-leguminous field crops: facilitating the evolution of an effective association between Azosirillun and wheat. Plant Soil 194:65–79
Kennedy IR, Choudhury AIMA, KecSkes ML (2004) Non-Symbiotic bacterial diazotrophs in crop-farming systems: can their potential for plant growth promotion be better exploited? Soil Boil Biochem 3 6(8):1229-1244
Kerovuo J, Lauraeus M, Nurminen P, Kalkinen N, Apajalahti J (1998) Isolation, characterization, molecular gene cloning, and sequencing of a novel phytase from Bacillus subtilis. Appl Environ Microbiol 64:2079–2085
Khalid A, Arshad M, Zahir ZA (2001) Factor affecting auxin biosynthesis by wheat and rice rhizobacteria. Pak J Soil Sci 21:11–18
Khalid A, Arshad M, Zahir ZA (2003) Growth and yield response of wheat to inoculation with auxin producing plant growth promoting rhizobacteria. Pak J Bot 35:483–498
Khalid A, Arshad M, Zahir ZA (2004) Screening plant growth-promoting rhizobacteria for improving groth and yield of wheat. J Appl Microbiol 96:473–480
Khan AG (2005) Role of soil microbes in the rhizosphere of plants growing on trace metal contaminated soils in phytoremediation. J Trace Elem Med Biol 18:355–364
Kim YO, Lee JK, Kim HK, Yu JH, Oh TK (1998) Cloning of the thermo stable phytase gene (phy) from Bacillus sp. DS11 and its over expression in Escherichia coli. FEMS Microbiol Lett 162:185–191
Klee HJ, Hayford MB, Kretzmer KA, Barry GF, Kishore GM (1991) Control of ethylene synthesis by expression of a bacterial enzyme in transgenic tomato plants. Plant Cell 3:1187–1193
Kloepper JW (1993) Plant growth promoting rhizobacteria as biological control agents. In: Metting FB Jr (ed) Soil microbial ecology. Dekker, New York, pp 255–274
Kloepper JW (1994) Plant growth promoting rhizobacteria. In: Okon Y (ed) Azospirillum/Plant associations. CRC Press, Boca Raton, pp 137–166
Kloepper JW, Schroth MN (1978) Plant growth promoting rhizobacteria on radishes. Proceedings of the Fourth International Conference on Plant Pathogen Bacteria, vol. 2. INRA, pp 879–882
Kloepper JW, Beauchamp CJ (1992) A review of issues related to measuring colonization of plant roots by bacteria. Can J Microbiol 38:1219–1232
Kloepper JW, Lifshitz R, Zablotowicz RM (1989) Free-living bacterial inocula for enhancing crop productivity. Trends Biotechnol 7:39–43
Kloepper JW, Ryu CM, Zhang S (2004) Induced systemic resistance and promotion of plant growth by Bacillus spp. Phytopathology 94(11):1259–1266
Kokalis-Burelle N (2003) Effects of transplant type and soil fumigant on growth and yield of strawberry in Florida. Plant Soil 256:273–280
Kokalis-Burelle N, Martinez-Ochoa N, Rodríguez-Kábana R, Kloepper JW (2002a) Development of multi-component transplant mixes for suppression of Meloidogyne incognita on tomato (Lycopersicon esculentum). J Nematol 34:362–369
Kokalis-Burelle N, Vavrina CS, Rosskopf EN, Shelby RA (2002b) Field evaluation of plant growth-promoting rhizobacteria amended transplant mixes and soil solarization for tomato and pepper production in Florida. Plant Soil 238:257–266
Kokalis-Burelle N, Vavrina CS, Reddy MS, Kloepper JW (2003) Amendment of muskmelon and watermelon transplant media with plant growth-promoting rhizobacteria: effects on disease and nematode resistance. Hortic Technol 13:476–482
Kokalis-Burelle N, Kloepper JW, Reddy MS (2006) Plant growth-promoting rhizobacteria as transplant amendments and their effects on indigenous rhizosphere microorganisms. Appl Soil Ecol 31(1–2):91–100
Kolb W, Martin P (1985) Response of plant roots to inoculation with Azospirillum brasilense and to application of indoleacetic acid. In: Klingmüller W (ed) Azospirillum III: genetics, physiology, ecology. Springer, Berlin, pp 215–221
Kumar V, Behl RK, Narula N (2001) Establishment of phosphate solubilizing strains of Azotobacter chroococcum in the rhizosphere and their effect on wheat cultivars under greenhouse conditions. Microbiol Res 156:87–93
Ladha JK, Reddy PM (2003) Nitrogen fixation in rice systems: state of knowledge and future prospects. Plant Soil 252:151–167
Ladha JK, Baraquio WL, Watanabe I (1982) Immunological techniques to identify Azospirillum associated with rice. Can J Microbiol 28:478–485
Lebuhn M, Heulin T, Hartmann A (1997) Production of auxin and other indolic and phenolic compounds by Paenibacillus polymyxa strains isolated from different proximity to plant roots. FEMS Microbiol Ecol 22:325–334
Lee S, Pierson B, Kennedy C (2002) Genetics and biochemistry of nitrogen fixation and other factors beneficial to host plant growth in diazotrophic endophytes. In: Vanderleyden J (ed) Proceedings of the ninth international symposium on nitrogen fixation with nonlegumes. Katholique Universiteit, Leuven, pp 41–42
Leelahawonge C, Nuntagij A, Teaumroong N, Boonkerd N, Pongsilp N (2010) Characterization of root-nodule bacteria isolated from the medicinal legume Indigofera tinctoria. Ann Microbiol 60:65–74
Lhuissier FGP, de Ruijter NCA, Sieberer BJ, Esseling JJ, Emons AMC (2001) Time course of cell biological events evoked in legume root hairs by Rhizobium Nod factors: state of the art. Ann Bot 87:289–302
Li J, Ovakin DH, Charles TC, Glick BR (2000) An ACC deaminase minus mutatnt of Entreobacter cloacae UW4 no longer promotes root elongation. Curr Microbiol 41:101–105
Limpens E, Franken C, Smit P, Willemse J, Bisseling T, Geurts R (2003) LysM domain receptor kinase regulating rhizobial nod factor-induced infection. Science 302:630–633
Loper JE, Buyer JS (1991) Siderophores in microbial interactions on plant surfaces. Mol Plant Microb Interact 4:5–13
Lucas GJA, Probanza A, Ramos B, Colon Flores JJ, Gutierrez Mañero FJ (2004a) Effect of plant growth promoting rhizobacteria (PGPRs) on biological nitrogen fixation, nodulation and growth of Lupinus albus I. cv. Multolupa. Eng Life Sci 7:1–77
Lucas GJA, Probanza A, Ramos B, Palomino MR, Gutierrez Mañero FJ (2004b) Effect of inoculation of Bacillus licheniformis on tomato and pepper. Agronomie 24:169–176
Lupwayi NZ, Rice WA, Clayton GW (2000) Endophytic Rhizobia in barley and canola in rotation with field peas. In: Book of abstracts, 17th North American conference on symbiotic nitrogen fixation, 23-28 July 2000, 80. University of Laval, Quebec, Canada, p 51
Lynch JM (1983) Soil biotechnology. Blackwell, Oxford
Lynch JM (1990) Beneficial interactions between miroorganisms and roots. Biotechnol Adv 8:335–346
Malik KA, Mirza MS, Hassan U, Mehnaz S, Rasul G, Haurat J, Bauy R, Normanel P (2002) The role of plant associated beneficial bacteria in rice-wheat Cropping System. In: Kennedy IR, Chaudhry ATMA (eds) Biofertilisers in action. Rural industries research and development Corporation, Canberra, pp 73–83
Mantelin S, Touraine B (2004) Plant growth-promoting bacteria and nitrate availability: impacts on root development and nitrate uptake. J Exp Bot 55:27–34
Martinez-Romero E, Gutierrez-Zamora ML, Estrada P, Caballero-Mellado J, Hernandez-Lucas I (2000) Natural endophytic association between Rhizobium Etli and maize. In: Book of abstracts, 17th North American conference on symbiotic nitrogen fixation, 23-28 July 2000. University of Laval, Quebec, Canada, p 51
Martinez-Toledo MV, Rodelas B, Salmeron V, Pozo C, Gonzalez-Lopez J (1996) Production of pantothenic acid and thiamine by Azotobacter vinelandii in a chemically defined medium and a dialysed soil medium. Biol Fertil Soils 22:131–135
Matiru VN, Dakora FD (2004) Potential use of rhizobial bacteria as promoters of plant growth for increased yield in landraces of African cereal crops. Afr J Biotechnol 3(1):1–7
McGrath JW, Wisdom GB, McMullan G, Lrakin MJ, Quinn JP (1995) The purification and properties of phosphonoacetate hydrolase, a novel carbon-phosphorus bond-cleaving enzyme from Pseudomonas fluorescens 23F. Eur J Biochem 234:225–230
McGrath JW, Hammerschmidt F, Quinn JP (1998) Biodegradation of phosphonomycin by Rhizobium huakuii PMY1. Appl Environ Microbiol 64:356–358
Mclnroy JA, Kloepper JW (1995) Survey of indigenous endophytes from cotton and sweet corn. Plant Soil 173:337–342
Meyer SLF, Massoud SI, Chitwood DJ, Roberts DP (2000) Evaluation of Trichoderma virens and Burkholderia cepacia for antagonistic activity against root-knot nematode, Meloidogyne incognita. Nematology 2:871–879
Middledrop PJM, Briglia M, Salkinoja-Salonen M (1990) Biodegradation of pentachlorophenol in natural polluted soil by inoculated Rhodococcus chlorophenolicus. Microb Ecol 20:123–139
Miller RM, Jastrow JD (2000) Mycorrhizal fungi influence soil structure. In: Kapulnik Y, David DD, David DD Jr (eds) Arbuscular mycorrhizas: physiology and function. Springer, Berlin
Milton HSJ (2007) Beneficial bacteria and bioremediation. Water Air Soil Pollut 184:1–3
Mirza MS, Rasul G, Mehnaz S, Ladha JK, So RB, Ali S, Malik KA (2000) Beneficial effects of inoculated nitrogen-fixing bacteria on rice. In: Ladha JK, Reddy PM (eds) The quest for nitrogen fixation in rice. International Rice Research Institute, Los Banõs, pp 191–204
Muratova A Yu, Turkovskaya OV, Antonyuk LP, Makarov OE, Pozdnyakova LI, Ignatov VV (2005) Oil-oxidizing potential of associative rhizobacteria of the genus Azospirillum. Microbiology 74:210–215
Murphy JF, Zender GW, Schuster DJ, Sikora EJ, Polston JE, Kloepper JW (2000) Plant growth promoting rhizobacterial mediated protection in tomato against tomato mottle virus. Plant Dis 84:779–784
Murray JD, Bogumil JK, Shusei SH, Satoshi T, Lisa A, Krzysztof S (2007) A cytokinin perception mutant colonized by Rhizobium in the absence of nodule organogenesis. Science 315(5808):101–104
Muthukumarasamy R, Revathi G, Lakshminarasimhan C (1999) Diazotrophic associations in sugar cane cultivation in South India. Trop Agric 76:171–178
Nakata PA (2002) The generation of a transposon-mutagenized Burkholderia glumae library to isolate novel mutants. Plant Sci 162:267–271
Narasimhan K, Basheer C, Bajic VB, Swarup S (2003) Enhancement of plant-microbe interactions using a rhizosphere metabolomics-driven approach and its application in the removal of polychlorinated biphenyls. Plant Physiol 132:146–153
Nautiyal CS, Bhadauria S, Kumar P, Lal H, Mondal R, Verma D (2000) Stress induced phosphate solubilization in bacteria isolated from alkaline soils. FEMS Microbiol Lett 182:291–296
Nieto KF, Frankenberger WT Jr (1990a) Influence of adenine, isopentyl alcohol and Azotobacter chroococcum on the growth of Raphanus sativus. Plant Soil 127:147–156
Nieto KF, Frankenberger WT Jr (1990b) Microbial production of cytokinins. In: Bollag JM, Stotzky G (eds) Soil biochem, vol 6. Dekker, New York, pp 191–248
Nieto KF, Frankenberger WT Jr (1991) Influence of adenine, isopentyl alcohol and Azotobacter chroococcum on the vegetative growth of Zea mays. Plant Soil 135:213–221
Noling JW, Gilreath JP (2001) Methyl bromide, progress and problems: identifying alternatives to methyl bromide, vol. II. Citrus and Veg. Mag., IFAS, University of Florida
O´Sullivan DJ, O´Gara F (1992) Traits of fluorescent Pseudomonas spp. involved in suppression of plant root pathogens. Microbiol Rev 56:662–676
Ohr HD, Sims JJ, Grech NM, Becker JO, McGiffen ME Jr (1996) Methyl iodide, an ozone-safe alternative to methyl bromide as a soil fumigant. Plant Dis 80:27–32
Ohtake H, Wu H, Imazu K, Ambe Y, Kato J, Kuroda A (1996) Bacterial phosphonate degradation, phosphite oxidation and polyphosphate accumulation. Res Conserv Recycl 18:125–134
Okon Y, Labandera-Gonzalez CA (1994) Agronomic applications of Azospirillum: an evaluation of 20 years world-wide field inoculation. Soil Biol Biochem 26:1591–1601
Okon Y, Itzigsohn R (1995) The development of Azospirillum as a commercial innoculant for improving crop yields. Biotechnol Adv 13(3):415–424
Pal KK, Tilak KVBR, Saxena AK, Dey R, Singh CS (2001) Suppression of maize root diseases caused by Macrophomina phaseolina, Fusarium moniliforme and Fusarium germinearum by plant growth promoting rhizobacteria. Microbiol Res 156:209–223
Pandey A, Kumar S (1989) Potential of Azotobacters and Azospirilla as biofertilizers for upland agriculture: a review. J Sci Ind Res 48:134–144
Panwar JDS, Singh O (2000) Response of Azospirillum and Bacillus on growth and yield of wheat under field conditions. Indian J Plant Physiol 5:108–110
Park KS, Kloepper JW (2000) Activation of PR-1a promoter by rhizobacteria which induces systemic resistance in tobacco against Pseudomonas syringae pv. Tabaco Biol Cont 18:2–9
Patil PL, Patil SP (1984) Uptake of nitrogen by cotton inoculated with Azotobacter. J Maharashtra Agric Uni 9(17):1–172
Patten CL, Glick BR (1996) Bacterial biosynthesis of indole-3-acetic acid. Can J Microbiol 42:207–220
Patten CL, Glick BR (2002) Role of Pseudomonas putida indole-acetic acid in development of the host plant root system. Appl Environ Microbiol 68:3795–3801
Paynel F, Murray PJ, Cliquet B (2001) Root exudates: a pathway for short-term N transfer from clover and ryegrass. Plant Soil 229:235–243
Peix A, Rivas-Boyero AA, Mateos PF, Rodriguez-Barrueco C, Martínez-Molina E, Velazquez E (2001) Growth promotion of chickpea and barley by a phosphate solubilizing strain of Mesorhizobium mediterraneum under growth. Soil Biol Biochem 33:103–110
Pereira JAR, Cavalcante VA, Baldani JI, Döbereiner J (1988) Field inoculation of sorghum and rice with Azospirillum sp and Herbaspirillum seropedicae. Plant Soil 110:269–274
Persello-Cartieaux F, Nussaume L, Robaglia C (2003) Tales from the underground: molecular plant-rhizobacteria interactions. Plant Cell Environ 26:189–199
Picard F, Kurtev M, Chung N, Topark-Ngarm A, Senawong T, Machado De Oliveira R, Leid M, McBurney MW, Guarente L (2004) Sirt1 promotes fat mobilization in white adipocytes by repressing PPAR-gamma. Nature 429(77):1–776
Plessner O, Klapach T, Guerinot ML (1993) Siderophore utilization by Bradyrhizobium japonicum. Appl Environ Microbiol 59:1688–1690
Primrose SB (1979) Ethylene and agriculture: the role of the microbe. J Appl Bacteriol 46:1–25
Raj SN, Deepak SA, Basavaraju P, Shetty HS, Reddy MS, Kloepper JW (2003) Comparative performance of formulations of plant growth promoting rhizobacteria in growth promotion and suppression of downy mildew in pearl millet. Crop Prot 22:579–588
Rao DLN (2001) BNF research progress 1996-2000: all India coordinated research project on biological nitrogen fixation. IISS, Bhopal
Reid M (1987) Ethylene in plant growth, development and senescence. In: Davies PJ (ed) Plant hormones and their role in plant growth and development. Martinus Nijhoff, Boston, pp 257–279
Reilly TJ, Baron GS, Nano F, Kuhlenschmidt MS (1996) Characterization and sequencing of a respiratory burst inhibiting acid phosphatase from Francisella tularensis. J Biol Chem 271:10973–10983
Reinhold-Hurek B, Hurek T, Gillis M, Hoste B, Vancanneyt M, Kersters K, DeLey J (1993) Azoarcus gen. nov., nitrogen fixing proteobacteria associated with roots of Kallar grass (Leptochloa fusca (L.) Kunth) and description of two species, Azoarcus indigens sp. nov. and Azoarcus communis sp. nov. Int J Syst Bacteriol 43:574–584
Reinhold-Hurek B, Egener T, Hurek T, Martin D, Sarkar A, Zhang L, Miche L (2002) Regulation of nitrogen fixation and assimilation of Azoarcus sp. BH72 new approaches to study biodiversity of grass endophytes. In: Vanderleyden J (ed) Proceedings of the nineth international symposium on nitrogen fixation with non-legumes. Katholique Universideit Leuven, Belgium, p 48
Reis VM, Baldani JI, Baldani VLD, Döberener J (2000) Biological dinitrogen fixation in the graminae and palm trees. Crit Rev Plant Sci 19:227–247
Revillas JJ, Rodelas B, Pozo C, Martinez-Toledo MV, Gonzalez LJ (2000) Production of B-group vitamins by two Azotobacter strains with phenolic compounds as sole carbon source under diazotrophic and adiazotrophic conditions. J Appl Microbiol 89:486–493
Richardson AE (2001) Prospects for using soil microorganisms to improve the acquisition of phosphorus by plants. Aust J Plant Physiol 28:897–906
Richardson AE, Hadobas PA (1997) Soil isolates of Pseudomonas spp. that utilize inositol phosphates. Can J Microbiol 43(509–5):16
Rodríguez H, Fraga R (1999) Phosphate solubilizing bacteria and their role in plant growth promotion. Biotechnol Adv 17:319–339
Rodríguez H, Han Y, Lei XG (1999) Cloning, sequencing and expression of an Escherichia. coli acid phopshatase/phytase gene (app A2) isolated from pig colon. Biochem Biophys Res Commun 257:117–123
Rodríguez H, Rossolini GM, Gonzalez T, Jiping L, Glick BR (2000) Isolation of a gene from Burkholderia cepacia IS-16 encoding a protein that facilitates phosphatase activity. Curr Microbiol 40:362–366
Rodríguez H, Fraga R, Gonzalez T, Bashan T (2006) Genetics of phosphate solubilization and its potential applications for improving plant growth-promoting bacteria. Plant Soil 287:15–21
Roesti D, Guar R, Johri BN, Imfeld G, Sharma S, Kawaljeet K, Aragno M (2006) Plant growth stage, fertilizer management and bio-inoculation of arbuscular mycorrhizal fungi and plant growth promoting rhizobacteria affect the rhizobacterial community structure in rain-fed wheat field. Soil Biol Biochem 38:1111–1120
Roper MM, Ladha JK (1995) Biological N2-fixation by heterotrophic and phototrophic bacteria in association with straw. Plant Soil 174:211–224
Rossolini GM, Shipa S, Riccio ML, Berlutti F, Macaskie LE, Thaller MC (1998) Bacterial non-specific acid phosphatases: physiology, evolution, and use as tools in microbial biotechnology. Cell Mol Life Sci 54:833–850
Russo A, Vettori L, Felici C, Fiaschi G, Morini S, Toffanin A (2008) Enhanced cropropagation response and biocontrol effect of Azospirillum brasilense Sp245 on Prunus cerasifera L. clone Mr.S 2/5 plants. J Biotechnol 134(3–4):312–319
Ryu CM, Farag MA, Hu CH, Reddy MS, Kloepper JW, Paré PW (2004) Bacterial volatiles induce systemic resistance in Arabidopsis. Plant Physiol 134:1017–1026
Ryu CM, Kim J, Choi O, Kim SH, Park CS (2006) Improvement of biological control capacity of Paenibacillus polymyxa E681 by seed pelleting on sesame. Biol Control 39:282–289
Şahin F, Çakmakçi R, Kantar F (2004) Sugar beet and barley yields in relation to inoculation with N2-fixing and phosphate solubilizing bacteria. Plant Soil 265:123–129
Saleem M, Arshad M, Hussain S, Bhatti AS (2007) Perspective of plant growth promoting rhizobacteria (PGPR) containing ACC deaminase in stress agriculture. J Ind Microbiol Biotechnol 34:635–648
Saleh S, Huang XD, Greenberg BM, Glick BR (2004) Phytoremediation of persistent organic contaminants in the environment. In: Singh A, Ward O (eds) Soil biology, vol. 1. Applied bioremediation and phytoremediation. Springer, Berlin, pp 115–134
Saravanakumar D, Lavanya N, Muthumeena B, Raguchander T, Suresh S, Samiyappan R (2008) Pseudomonas fluorescens enhances resistance and natural enemy population in rice plants against leaf folder pest. J Appl Entomol 132(6):469–479
Sasikala C, Ramana CV (1995) Biotechnological potentials of anoxygenic phototrophic bacteria. I. Production of single-cell protein, vitamins, ubiquinones, hormones, and enzymes and use in waste treatment. Adv Appl Microbiol 41:173–226
Saubidet MI, Fatta N, Barneix AJ (2000) The effects of inoculation with Azospirillum brasilense on growth and nitrogen utilization by wheat plants. Plant Soil 245(2):15–222
Schippers B, Bakker AW, Baker PAHM (1987) Interactions of deleterious and beneficial rhizosphere microorganisms and the effect of cropping practices. Annu Rev Phytopathol 25:339–358
Schippers B, Scheffer RJ, Lugtenberg JJ, Weisbek PJ (1995) Biocoating of seed with plant growth promoting rhizobacteria to improve plant establishment. Outlook Agric 24:179–185
Schloter M, Wiehe W, Assmus B, Steindl H, Becke H, Hoflich G, Hartman A (1997) Root colonization of different plants by plant growth-promoting Rhizobium leguminosarum bv trifolii R39 studied with monospecific polyclonal antisera. Appl Environ Microbiol 63:2038–2046
Séguin A, Lalonde M (1989) Detection of pectolytic activity and pel homologous sequences in Frankia. Plant Soil 118:221–229
Serrano A, Mateos MI, Losada M (1993) Differential regulation by trophic conditions of phosphorylating and nonphosphorylating NADP(+)-dependent glyceraldehyde-3-phosphate dehydrogenases in Chlorella fusca. Biochem Biophys Res Commun 193:1348–1356
Shah Z, Shah SH, Peoples MB, Schwenke GD, Hrridge DF (2003) Crop residue and fiertilizer N effects on nitrogen fixation and yields of legume-cereal rotations and soil organic fetility. Field Crops Res 83:1–11
Shaharoona B, Arshad M, Zahir ZA (2006a) Effect of plant growth promoting rhizobacteria containing ACC-deaminase on maize (Zea mays L.) growth under axenic conditions and on nodulation in mung bean (Vigna radiata L.). Lett Appl Microbiol 42:155–159
Shaharoona B, Arshad M, Zahir ZA, Khalid A (2006b) Performance of Pseudomonas spp. containing ACC-deaminase for improving growth and yield of maize (Zea mays L.) in the presence of nitrogenous fertilizer. Soil Biol Biochem 38:2971–2975
Shankariah C, Hunsigi G (2001) Field responses of sugarcane to associative N2 fixers and P solubilishers. In: Hogarth DM (ed) Proceedings of the 24th international society of sugarcane Technologists Congress, 17-21 September 2001. The Australian Society of Sugercane Technologists, Brisbane, pp 40–45
Shenoy VV, Kalagudi GM (2005) Enhancing plant phosphorus use efficiency for sustainable cropping. Biotechnol adv 23:501–513
Shiferaw B, Bantilan MCS, Serraj R (2004) Harnessing the potential of BNF for poor farmers: technological policy and institutional constraints and research need. In: Serraj R (ed) Symbiotic nitrogen fixation; prospects for enhanced application in tropical agriculture. Oxford & IBH, New Delhi, p 3
Shoebitz M, Ribaudo CM, Pardo MA, Cantore ML, Ciampi L, Curá JA (2009) Plant growth promoting properties of a strain of Enterobacter ludwigii isolated from Lolium perenne rhizosphere. Soil Biol Biochem 41(9):1768–1774
Siddiqui IA, Ehteshamul-Haque S, Shaukat SS (2001) Use of rhizobacteria in the control of root rot-root knot disease complex of mung bean. J Phytopathol 149:337–346
Sierra S, Rodelas B, Martinez-Toledo MV, Pozo C, Gonzalez-Lopez J (1999) Production of B-group vitamins by two Rhizobium strains in chemically defined media. J Appl Microbiol 86:851–858
Skrary FA, Cameron DC (1998) Purification and characterization of a Bacillus licheniformis phosphatase specific for D-alpha-glycerphosphate. Arch Biochem Biophys 349:27–35
Snapp SS, Aggarwal VD, Chirwa RM (1998) Note on phosphorus and genotype enhancement of biological nitrogen fixation and productivity of maize/bean intercrops in Malawi. Field Crops Res 58:205–212
Soliman S, Seeda MA, Aly SSM, Gadalla AM (1995) Nitrogen fixation by wheat plants as affected by nitrogen fertilizer levels and nonsymbiotic bacteria. Egypt J Soil Sci 35:401–413
Spencer D, James EK, Ellis GJ, Shaw JE, Sprent JI (1994) Interactions between Rhizobia and potato tissue. J Exp Bot 45:1475–1482
Stajner D, Gasaić O, Matković B, Varga SZI (1995) Metolachlor effect on antioxidants enzyme activities and pigments content in seeds and young leaves of wheat (Triticum aestivum L.). Agr Med 125:267–273
Stajner D, Kevreaan S, Gasaić O, Mimica-Dudić N, Zongli H (1997) Nitrogen and Azotobacter chroococcum enhance oxidative stress tolerance in sugar beet. Biol Plant 39:441–445
Steenhoudt O, Vanderleyden J (2000) Azospirillum, a free-living nitrogen-fixing bacterium closely associated with grasses: genetic, biochemical and ecological aspects. FEMS Microbiol Rev 24:487–506
Stout MJ, Zehnder GW, Baur ME (2002) Potential for the use of elicitors of plant defence in arthropode management programs. Arch Insect Biochem Physiol 51(4):222–235
Sturz AV, Christie BR, Novak J (2000) Bacterial endophytes: potential role in developing sustainable system of crop production. Crit Rev Plant Sci 19:1–30
Sutton JC, Peng G (1993) Biocontrol of Botrytis cinerea in strawberry leaves. Phytopathology 83:615–621
Terouchi N, Syono K (1990) Rhizobium attachment and curling in asparagus, rice, and oat plants. Plant Cell Physiol 31:119–127
Thakuria D, Taleekdar NC, Goswami C, Hazarika S, Boro RC, Khan MR (2004) Characterization and screening of bacteria from rhizosphere of rice grown in acidic soils of Assam. Curr Sci 86(7):978–985
Thaller MC, Berlutti F, Schippa S, Lombardi G, Rossolini GM (1994) Characterization and sequence of PhoC, the principal phosphate-irrepressible acid phosphatase of Morganella morganii. Microbiology 140:1341–1350
Thaller MC, Berlutti F, Schippa S, Iori P, Passariello C, Rossolini GM (1995a) Heterogeneous patterns of acid phosphatases containing low-molecular-mass Polipeptides in members of the family Enterobacteriaceae. Int J Syst Bacteriol 4:255–261
Thaller MC, Lombardi G, Berlutti F, Schippa S, Rossolini GM (1995b) Cloning and characterization of the NapA acid phosphatase/phosphotransferase of Morganella morganii: identification of a new family of bacterial acid phosphatase encoding genes. Microbiology 140:147–151
Tien TM, Diem HG, Gaskins MH, Hubbell DH (1981) Polygaracturonic acid transeliminase production by Azospirillum species. Can J Microbiol 27:426–431
Tisdale SL, Nelson WL, Beaton JD (1990) Soil fertility and fertilizers, 4th edn. Macmillan, New York
Tran Vân V, Berge O, Ke SN, Balandreau J, Heulin T (2000) Repeated beneficial effects of rice inoculation with a strain of Burkholderia vietnamiensis on early and late yield components in low fertility sulphate acid soils of Vietnam. Plant Soil 218:273–284
Tye AJ, Siu FK, Leung TY, Lim BL (2002) Molecular cloning and the biochemical characterization of two novel phytases from Bacillus subtilis 168 and Bacillus licheniformis. Appl Microbiol Biotechnol 59:190–197
Umali-Garcia M, Hubbell DH, Gaskins MH, Dazzo FB (1980) Association of Azospirillum with grass roots. Appl Environ Microbiol 39(1):219–226
Valverde F, Losada M, Serrano A (1999) Engineering a central metabolic pathway: glycolysis with no net phosphorylation in an Escherichia coli gap mutant complemented with a plant Gap N gene. FEBS Lett 449:153–158
van Loon LC, Bakker P, Pieterse CMJ (1998) Systemic resistance induced by rhizosphere bacteria. Annu Rev Phytopathol 36:453–483
Van Rhijn P, Fujishige NA, Lim PO, Hirsch AM (2001) Sugar-binding activity of pea lectin enhances heterologous infection of transgenic alfalfa plants by Rhizobium leguminosarum bivor viciae. Plant Physiol 126:133–144
Van Veen JA, van Overbeek LS, van Elsas JD (1997) Fate and activity of microorganisms introduced into soil. Microbiol Mol Biol Rev 61:121–135
Vandamme P, Goris J, Chen WM, de Vos P, Willems A (2002) Burkholderia tuberum sp. nov and Burkholderia phymatum sp. nov., nodulate the roots of tropical legumes. Syst Appl Microbiol 25:507–512
Venkateswarlu B, Hari K, Katyl JC (1997) Influence of soil and crop factors on the native rhizobia populations in soils under dry land farming. Appl Soil Ecol 7:1–10
Vestberg M, Kukkonen S, Saari K, Parikka P, Huttunen J, Tainino L, Devos N, Weekers F, Kevers C, Thonart P, Lemoine MC, Cordier C, Alabouvette C, Gianinazzi S (2004) Microbial inoculation for improving the growth and health of micropropagated strawberry. Appl Soil Ecol 27:243–258
Vivas A, Barea JM, Azcón R (2005) Brevibacillus brevis isolated from cadmium- or zinc-contaminated soils improves in vitro spore germination and growth of Glomus mosseae under high Cd or Zn Concentrations. Microb Ecol 49:416–442
Wachowska U, Majchrzak B, Borawska M, Karpinska Z (2004) Biological control of winter wheat pathogens by bacteria. Acta fytotech zootech, Vol. 7, 2004, Special Number, Proceedings of the XVI. Slovak and Czech Plant Protection Conference organized at Slovak Agricultural University in Nitra, Slovakia
Walsh UF, Morrissey JP, O’Gara F (2001) Pseudomonas for biocontrol of phytopathogens: from functional genomics to commercial exploitation. Curr Opin Biotechnol 12:289–295
Webster G, Gough C, Vasse J, Batchelor CA, O’Callaghan KJ, Kothari SL, Davey MR, Denarie J, Cocking EC (1997) Interactions of Rhizobia with rice and wheat. Plant Soil 194:115–122
Wiehe W, Holfich G (1995) Survival of plant growth promoting rhizosphere bacteria in rhizosphere of different crops and migration to non-inoculated plants under field conditions in north-east Germany. Microbiol Res 150:201–206
Yang SF, Hoffman NE (1984) Ethylene biosynthesis and its regulation in higher plants. Annu Rev Plant Physiol 35:155–189
Yanni YG, El-Fattah FKA (1999) Towards integrated biofertilization management with free living and associative dinitrogen fixers for enhancing rice performance in the Nile delta. Symbiosis 27:319–331
Yanni YG, Rizk RY, Corich V, Squartini A, Ninke K, Philip-Hollingsworth S, Orgambide G, de Bruijn F, Stoltzfus J, Buckley D, Schmidt TM, Mateos PF, Ladha JK, Dazzo FB (1997) Natural endophytic association between Rhizobium leguminosarum bv. trifolii and rice roots and assessment of its potential to promote rice growth. Plant Soil 194:99–114
Yanni YG, Rizk RY, Abd El-Fattah FK, Squartini A, Corich V, Giacomini A, de Bruijn F, Rademaker J, Maya-Flores J, Ostrom P, Vega-Hernandez M, Hollingsworth RI, Martinez-Molina E, Ninke K, Philip-Hollingsworth S, Mateos PF, Velasquez E, Triplett E, Umali-Garcia M, Anarna JA, Rolfe BG, Ladha JK, Hill J, Mujoo R, Ng PK, Dazzo FB (2001) The beneficial plant growth-promoting association of Rhizobium leguminosarum bv. trifolii with rice roots. Aust J Plant Physiol 28:845–870
Zafar-ul-Hye M, Zahir ZA, Shahzad SM, Irshad U, Arshad M (2007) Isolation and screening of Rhizobia for improving growth and nodulation of lentil (Lens culinaris Medic) seedlings under axenic conditions. Soil Environ 26(1):81–91
Zahir AZ, Arshad M, Frankenberger WT Jr (2004) Plant growth promoting rhizobacteria: application and perspectives in Agriculture. Adv Agron 81:97–168
Zahir ZA, Abbas SA, Khalid M, Arshad M (2000) Substrate dependent microbially derived plant hormones for improving growth of maize seedlings. Pak J Biol Sci 3:289–291
Zaidi S, Usmani S, Singh BR, Musarrat J (2008) Significance of Bacillus subtilis strains SJ-101 as a bioinoculant for concurrent plant growth promotion and nickel accumulation in Brassica Juncea. Chemosphere 64:991–997
Zavalin AA, Kandaurova TM, Vinogradova LV (1998) Influence of nitrogen fixing microorganisms on the nutrition and productivity of spring wheat, and on the characteristics of photosynthesis of different varieties of spring wheat. In: Elmerich C, Kondorosi A, Newton WE (eds) Biological nitrogen fixation for the 21st century. Kluwer, Dordrecht, pp 413–414
Zhang S, Moyne AL, Reddy MS, Kloepp JW (2002) The role of salicylic acid in induced systemic resistance elicited by plant growth-promoting rhizobacteria against blue mold of tobacco. Biol Control 25:288–296
Zhang H, Sekiguchi Y, Hanada S, Hugenholtz P, Kim H, Kamagata Y, Nakamura K (2003) Gemmatimonas aurantiaca gen. nov., sp. nov., a Gram-negative, aerobic, polyphosphate accumulating micro-organism, the first cultured representative of the new bacterial phylum Gemmatimonadetes phyl. nov. Int J Syst Evol Microbiol 53:1155–1163
Zhuang XL, Chen J, Shim H, Bai Z (2007) New advances in plant growth-promoting rhizobacteria for bioremediation. Environ Int 33:406–413
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Hayat, R., Ali, S., Amara, U. et al. Soil beneficial bacteria and their role in plant growth promotion: a review. Ann Microbiol 60, 579–598 (2010). https://doi.org/10.1007/s13213-010-0117-1
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DOI: https://doi.org/10.1007/s13213-010-0117-1