Abstract
Background and aims
The objectives of this study were to examine the effect of direct inoculation of seeds with the rhizobacteria Pseudomonas sp. SB on the growth of tall fescue and phytodegradation efficiency in an oily-sludge-contaminated soil.
Methods
SB isolated from rhizosphere soil of tall fescue was evaluated for their plant-growth-promoting characters and ability to produce biosurfactant. A pot experiment was conducted to study the effect of inoculation of SB on phytoremediation.
Results
SB reduced the surface tension of culture media and produced indole acetic acid, siderophores, and 1-aminocyclopropane-1-carboxylate deaminase. Inoculation of SB increased shoot and root dry weights of tall fescue in oily-sludge-contaminated soil by 28 % and 19 %, respectively. Over 120 days, the content of total petroleum hydrocarbon in soil decreased by 33.9 %, 68.0 %, and 84.5 %, and of polycyclic aromatic hydrocarbons (PAHs) by 32.9 %, 40.9 %, and 46.2 %, respectively, in the no-plant control, tall fescue, and tall fescue + SB treatments. Inoculation of SB also increased the activity and biodiversity of soil microbial communities in the planted treatments.
Conclusions
SB could produce biosurfactant and exhibited a number of characters of plant-growth-promoting rhizobacteria. Inoculation of SB to tall fescue led to more effective remediation of oily-sludge-contaminated soils.



Similar content being viewed by others
Explore related subjects
Discover the latest articles and news from researchers in related subjects, suggested using machine learning.References
Ahn CK, Woo SH, Park JM (2010) Surface solubilization of phenanthrene by surfactant sorbed on soils with different organic matter contents. J Hazard Mater 177:799–806
Amprayn K, Rose MT, Kecskés M, Pereg L, Nguyen HT, Kennedy IR (2012) Plant growth promoting characteristics of soil yeast (Candida tropicalis HY) and its effectiveness for promoting rice growth. Appl Soil Ecol 61:295–299
Arshad M, Saleem M, Hussain S (2007) Perspectives of bacterial ACC deaminase in phytoremediation. Trends Biotechnol 25:356–362
Banat IM, Makkar RS, Cameotra SS (2000) Potential commercial applications of microbial surfactants. Appl Microbiol Biotechnol 53:495–508
Benincasa M (2007) Rhamnolipid produced from agroindustrial wastes enhances hydrocarbon biodegradation in contaminated soil. Curr Microbiol 54:445–449
Bradford MM (1976) A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein–dye binding. Anal Biochem 72:248–254
Cameotra SS, Singh P (2008) Bioremediation of oil sludge using crude biosurfactants. Int Biodeterior Biodegrad 62:274–280
Dean SM, Jin Y, Cha DK, Wilson SV, Radosevich M (2001) Phenanthrene degradation in soils co-inoculated with phenanthrene-degrading and biosurfactant-producing bacteria. J Environ Qual 30:1126–1133
Garland JL, Mills AL (1991) Classification and characterization of heterotrophic microbial communities on the basis of patterns of community-level sole-carbon-source utilization. Appl Environ Microbiol 57:2351–2359
Gerhardt KE, Huang XD, Glick BR, Greenberg BM (2009) Phytoremediation and rhizoremediation of organic soil contaminants: potential and challenges. Plant Sci 176:20–30
Glick BR, Cheng Z, Czarny J, Duan J (2007) Promotion of plant growth by ACC deaminase-producing soil bacteria. Eur J Plant Pathol 119:329–339
Glickmann E, Dessaux Y (1995) A critical examination of the specificity of the salkowski reagent for indolic compounds produced by phytopathogenic bacteria. Appl Environ Microbiol 61:793–796
Harch BD, Correll RL, Meech W, Kirkby CA, Pankhurst CE (1997) Using the Gini coefficient with BIOLOG substrate utilisation data to provide an alternative quantitative measure for comparing bacterial soil communities. J Microbiol Methods 30:91–101
Huang XD, El-Alawi Y, Penrose DM, Glick BR, Greenberg BM (2004) Responses of three grass species to creosote during phytoremediation. Environ Pollut 130:453–463
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
Jalili F, Khavazi K, Pazira E, Nejati A, Rahmani HA, Sadaghiani HR, Miransari M (2009) Isolation and characterization of ACC deaminase-producing fluorescent pseudomonads, to alleviate salinity stress on canola (Brassica napus L.) growth. J Plant Physiol 166:667–674
Jin-Hee P, Nanthi B, Mallavarapu M, Ravi N (2011) Isolation and characterization of phosphate solubilizing bacteria from phosphate amended and lead contaminated soils. J Hazard Mater 185:829–836
Juhasz AL, Naidu R (2000) Bioremediation of high molecular weight polycyclic aromatic hydrocarbons: a review of the microbial degradation of benzo[a]pyrene. Int Biodeterior Biodegrad 45:57–88
Kuyukina MS, Ivshina IB, Makarov SO, Litvinenko LV, Cunningham CJ, Philp JC (2005) Effect of biosurfactants on crude oil desorption and mobilization in a soil system. Environ Int 31:155–161
Lai CC, Huang Y, Wei YH, Chang JS (2009) Biosurfactant-enhanced removal of total petroleum hydrocarbons from contaminated soil. J Hazard Mater 167:609–614
Liu WX, Luo YM, Teng Y, Li ZG, Christie P (2009) Prepared bed bioremediation of oily sludge in an oilfield in northern China. J Hazard Mater 161:479–484
Liu WX, Luo YM, Teng Y, Li ZG, Ma L (2010) Bioremediation of oily sludge-contaminated soil by stimulating indigenous microbes. Environ Geochem Heal 32:23–29
Liu WX, Wang XB, Wu LH, Chen MF, Tu C, Luo YM, Christie P (2012) Isolation, identification and characterization of Bacillus amyloliquefaciens BZ-6, a bacterial isolate for enhancing oil recovery from oily sludge. Chemosphere 87:1105–1110
Lu RK (1999) Analytical methods of soil agricultural chemistry. China Agricultural Science and Technology Press, Beijing (in Chinese)
Merkl N, Schultze-Kraft R, Infante C (2005) Assessment of tropical grasses and legumes for phytoremediation of petroleum-contaminated soils. Water Air Soil Pollut 165:195–209
Muratova AY, Dmitrieva TV, Panchenko LV, Turkovskaya OV (2008) Phytoremediation of oil-sludge-contaminated soil. Int J Phytoremediation 10:486–502
Payne SM (1994) Detection, isolation, and characterization of siderophores. Methods Enzymol 235:329–344
Phillips LA, Greer CW, Germida JJ (2006) Culture-based and culture-independent assessment of the impact of mixed and single plant treatments on rhizosphere microbial communities in hydrocarbon contaminated flare-pit soil. Soil Biol Biochem 38:2823–2833
Ping LF, Luo YM, Zhang HB, Li QB, Wu LH (2007) Distribution of polycyclic aromatic hydrocarbons in thirty typical soil profiles in the Yangtze River Delta region, east China. Environ Pollut 147:358–365
Plaza G, Jangid K, Lukasik K, Nalecz-Jawecki G, Berry C, Brigmon R (2008) Reduction of petroleum hydrocarbons and toxicity in refinery wastewater by bioremediation. Bull Environ Contam Toxicol 81:329–333
Płaza G, Nałecz-Jawecki G, Ulfig K, Brigmon RL (2005a) The application of bioassays as indicators of petroleum-contaminated soil remediation. Chemosphere 59:289–296
Płaza G, Nałecz-Jawecki G, Ulfig K, Brigmon RL (2005b) Assessment of genotoxic activity of petroleum hydrocarbon-bioremediated soil. Ecotoxicol Environ Saf 62:415–420
Propst TL, Lochmiller RL, Qualls CW Jr, McBee K (1999) In situ (mesocosm) assessment of immunotoxicity risks to small mammals inhabiting petrochemical waste sites. Chemosphere 38:1049–1067
Reed MLE, Warner B, Glick B (2005) Plant growth–promoting bacteria facilitate the growth of the common reed Phragmites australis in the presence of copper or polycyclic aromatic hydrocarbons. Curr Microbiol 51:425–429
Smalla K, Wachtendorf U, Heuer H, Liu W, Forney L (1998) Analysis of BIOLOG GN substrate utilization patterns by microbial communities. Appl Environ Microbiol 64:1220–1225
Tahhan RA, Ammari TG, Goussous SJ, Al-Shdaifat HI (2011) Enhancing the biodegradation of total petroleum hydrocarbons in oily sludge by a modified bioaugmentation strategy. Int Biodeterior Biodegrad 65:130–134
Urum K, Pekdemir T, Gopur M (2003) Optimum conditions for washing of crude oil-contaminated soil with biosurfactant solutions. Process Saf Environ Prot 81:203–209
Vasudevan N, Rajaram P (2001) Bioremediation of oil sludge-contaminated soil. Environ Int 26:409–411
Wang X, Wang Q, Wang S, Li F, Guo G (2012) Effect of biostimulation on community level physiological profiles of microorganisms in field-scale biopiles composed of aged oil sludge. Bioresour Technol 111:308–315
Wenzel W (2009) Rhizosphere processes and management in plant-assisted bioremediation (phytoremediation) of soils. Plant Soil 321:385–408
Wrenn BA, Venosa AD (1996) Selective enumeration of aromatic and aliphatic hydrocarbon degrading bacteria by a most-probable-number procedure. Can J Microbiol 42:252–258
Wunsche L, Bruggemann L, Babel W (1995) Determination of substrate utilization patterns of soil microbial communities: an approach to assess population changes after hydrocarbon pollution. FEMS Microbiol Ecol 17:295–305
Yang YH, Yao J (2000) Effect of pesticide pollution against functional microbial diversity in soil (in Chinese). J Microbiol 20:23–25
Zhang Y, He L, Chen Z, Wang Q, Qian M, Sheng X (2011) Characterization of ACC deaminase-producing endophytic bacteria isolated from copper-tolerant plants and their potential in promoting the growth and copper accumulation of Brassica napus. Chemosphere 83:57–62
Acknowledgments
We thank the National Natural Science Foundation of China (41001182), Jiangsu Provincial Natural Science Foundation of China (BK2012891), and the Environmental Protection Public Welfare Special Fund for Scientific Research (201009015) for financial support.
Author information
Authors and Affiliations
Corresponding author
Additional information
Responsible Editor: Peter Christie.
Rights and permissions
About this article
Cite this article
Liu, W., Sun, J., Ding, L. et al. Rhizobacteria (Pseudomonas sp. SB) assist phytoremediation of oily-sludge-contaminated soil by tall fescue (Testuca arundinacea L.). Plant Soil 371, 533–542 (2013). https://doi.org/10.1007/s11104-013-1717-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11104-013-1717-x


