Aleksieva P, Spasova D, Radoevska S (2003) Acid phosphatase distribution and localization in the fungus Humicola lutea. Z Naturforsch C 58c(3/4):239–43
Google Scholar
Antunes SC, Pereira R, Marques SM, Castro BB, Gonçalves F (2011) Impaired microbial activity caused by metal pollution: a field study in a deactivated uranium mining area. Sci Total Environ 410–411:87–95
Article
Google Scholar
Beazley MJ, Martinez RJ, Webb SM, Sobecky PA, Taillefert M (2011) The effect of pH and natural microbial phosphatase activity on the speciation of uranium in subsurface soils. Geochem Cosmochim Act 75:5648–63
CAS
Article
Google Scholar
Beazley MJ, Martinez RJ, Sobecky PA, Webb SM, Taillefert M (2007) Uranium biomineralization as a result of bacterial phosphatase activity: insights from bacterial isolates from a contaminated subsurface. Environ Sci Technol 41:5701–7
CAS
Article
Google Scholar
Borie F, Rubio R (2003) Total and organic phosphorus in Chilean volcanic soils. Gayana Bot 60:69–78
Article
Google Scholar
Caetano AL, Marques CR, Gavina A, Carvalho F, Gonçalves F, da Silva ER, Pereira R (2014) Contribution for the derivation of a soil screening value (SSV) for uranium, using a natural reference soil. Plos One 9(10):e108041
Article
Google Scholar
Chaudhuri D, Tripathy S, Veeresh H, Powell MA, Hart BR (2003) Relationship of chemical fractions of heavy metals with microbial and enzyme activities in sludge and ash-amended acid lateritic soil from India. Environ Geol 45:115–23
CAS
Article
Google Scholar
Cheng J, Shi Z, Zhu Y (2007) Assessment and mapping of environmental quality in agricultural soils of Zhejiang Province, China. J Environ Sci 19:50–4
CAS
Article
Google Scholar
Chodak M, Gołębiewski M, Morawska-Płoskonka J, Kuduk K, Niklińska M (2013) Diversity of microorganisms from forest soils differently polluted with heavy metals. Appl Soil Ecol 64:7–14
Article
Google Scholar
Dalal RC (1977) Soil organic phosphorus. Adv Agron 29:83–118
CAS
Article
Google Scholar
Diaz-Raviña M, Bååth E, Frostegård A (1994) Multiple heavy metal tolerance of soil bacterial communities and its measurement by a thymidine incorporation technique. Appl Environ Microb 60:2238–47
Google Scholar
Fisher B, Costanza R, Turner RK, Morling P (2007) Defining and classifying ecosystem services for decision making, CSERGE Working Paper EDM. No 07–04:20, Available at: http://hdl.handle.net/10419/80264
Google Scholar
Giller KE, Witter E, McGrath SP (1998) Toxicity of heavy metals to microorganisms and microbial processes in agricultural soils: a review. Soil Biol Biochem 30:1389–414
CAS
Article
Google Scholar
Gu Y, Wag P, Kong C (2009) Urease, invertase, dehydrogenase and polyphenoloxidase activities in paddy soils influenced by allelophatic rice variety. Eur J Soil Biol 45:436–41
CAS
Article
Google Scholar
Keeney DR, Nelson DW (1982) Nitrogen-inorganic forms. In: Page AL, Miller RH, Keeney D (eds) Methods of soil analysis, part 2. Soil Sci Soc Am, Madison, WI, pp 643–98
Google Scholar
Kenarova A, Radeva G (2010) Inhibitory effects of total and water soluble concentrations of heavy metals on microbial dehydrogenase activity. CR Acad Bulg Sci 63:1029–34
CAS
Google Scholar
Kenarova A, Radeva G, Traykov I, Boteva S (2014) Community level physiological profiles of bacterial communities inhabiting uranium mining impacted sites. Ecotox Environ Safe 100:226–32
CAS
Article
Google Scholar
Khan S, Hesham AE, Qiao M, Rehman S, He J (2010) Effect of Cd and Pb on soil microbial community structure and activities. Environ Sci Pollut Res 17:288–96
CAS
Article
Google Scholar
Kremen C, Ostfeld RS (2005) A call to ecologists: measuring, analyzing, and managing ecosystem services. Front Ecol Environ 3:540–8
Article
Google Scholar
Kumar M, Kaur PP, Granjewala D (2008) Isolation of periplasmic alkaline phosphatase from Rhizobium bacteria. Res J Microbiol 3:157–62
CAS
Article
Google Scholar
Kumar R, Nongkhlaw M, Acharya C, Joshi SR (2013) Uranium (U) tolerant bacterial diversity from U ore deposit of Domiasiat in North-east India and its prospective utilization in bioremediation. Microbes Environ 28:33–41
Article
Google Scholar
Madejón E, Burgos P, López R, Cabrera F (2001) Soil enzymatic response to addition of heavy metals with organic residues. Biol Fert Soils 34:144–50
Article
Google Scholar
MoEW (Ministry of Environment and Water) (2008) Ordinance 3: Bulgarian limit values of harmful substances in soils Available at: http://www.moew.government.bg/ (in bulgarian)
Nannipieri P, Giagnoni L, Landi L, Renella G (2011) Role of phosphatase enzymes in soils. In: Bünemann EK, Oberson A, Frossard E (eds) Phosphorus in action, vol 26, Biological Processes in Soil Phosphorus Cycling, Series: Soil Biology, Springer–Verlag Berlin Heidelberg., pp 215–44
Chapter
Google Scholar
Olsen SR (1982) Phosphorus. In: Page AL, Miller RH, Keeney D (eds) Methods of soil analysis, part 2. Agronomy Monograph, Soil Sci Soc Am, Madison, WI, pp 1040–2
Google Scholar
Palmer MA, Bernhardt E, Chornesky E et al (2004) Ecology for a crowded planet. Science 304:1251–2
CAS
Article
Google Scholar
Pan J, Yu L (2011) Effects of Cd or/and Pb on soil enzyme activities and microbial community structure. Ecol Eng 37:1889–94
Article
Google Scholar
Powers LG, Mills HJ, Palumbo AV, Zhang CL, Delaney K, Sobecky PA (2002) Introduction of a plasmid-encoded phoA gene for constitutive overproduction of alkaline phosphatase in three subsurface Pseudomonas isolates. FEMS Microbiol Ecol 41:115–23
CAS
Article
Google Scholar
Radeva G, Kenarova A, Bachvarova V, Flemming K, Popov I, Vassilev D, Selenska-Pobell S (2013) Bacterial diversity at abandoned uranium mining and milling sites in Bulgaria as revealed by 16S rRNA genetic diversity study. Water Air Soil Poll 224:1748
Article
Google Scholar
Roy S, Bhattacharyya P, Ghosh AK (2004) Influence of toxic metals on activity of acid and alkaline phosphatase enzymes in metal-contaminated landfill soils. Aust J Soil Res 42:339–44
CAS
Article
Google Scholar
Six J, Frey SD, Thiet RK, Batten KM (2006) Bacterial and fungal contributions to carbon sequestration in agroecosystems. Soil Sci Soc Am J 70:555–69
CAS
Article
Google Scholar
Stephen MGD, Sarath G, Plaxton WC (1994) The role of acid phosphatases in plant phosphorus metabolism. Physiol Plant 90:791–800
Article
Google Scholar
Stoyanova T, Traykov I, Yaneva I, Bogoev V (2010) Ecological quality assessment of Luda River, Bulgaria. Natura Montenegrina 9:341–8
Google Scholar
Stoyanova T, Traykov I, Yaneva I, Bogoev V (2011) Heavy metals and radionuclides in river impacted by uranium mining, Bulgaria. J Balkan Ecol 14:83–91
Google Scholar
Tabatabai MA (1994) Soil enzymes. In: Weaver RW, Angle JS, Bottomley PS (eds) Methods of soil analysis, part 2: microbiological and biochemical properties. Soil Sci Soc Am, Madison, WI, pp 778–833
Google Scholar
Tan X, Chang SX, Kabzems R (2008) Soil compaction and forest soil removal reduce microbial biomass and enzyme activities in a boreal aspen forest soil. Biol Fert Soils 44:471–9
Article
Google Scholar
Tejada M, Moreno JL, Hernandez MT, Garcia C (2008) Soil amendments with organic wastes reduce the toxicity of nickel to soil enzyme activities. Eur J Soil Biol 44:129–40
CAS
Article
Google Scholar
Topashka-Ancheva M, Мetcheva R, Gerasimova T, Dimitrov K (2010) Murids as a test system to assess environmental influences on genetic apparatus. Scientific conference, Sofia 24 – 25 June 2010, “Biodiversity and Healthy Environment”, Book of Abstracts, pp 86–87
Trevors JT (1984) Dehydrogenase activity in soil: a comparison between INT and TTC assay. Soil Biol Biochem 16:673–4
CAS
Article
Google Scholar
Vitousek PM, Harold MA (1997) Human domination of Earth's ecosystems. Science 277:494–9
CAS
Article
Google Scholar
Wang YP, Shi J, Wang H, Lin Q, Chen XC, Chen YX (2007) The influence of soil heavy metals pollution on soil microbial biomass, enzyme activity, and community composition near a copper smelter. Ecotox Environ Safe 67:75–81
CAS
Article
Google Scholar
Wyszkowska J, Borowik A, Kucharski J, Baćmaga M, Tomkiel M, Boros-Lajszner E (2013) The effect of organic fertilizers on the biochemical properties of soil contaminated with zinc. Plant Soil Environ 59:500–4
Google Scholar
Yuan B, Yue D (2012) Soil microbial and enzymatic activities across a chronosequence of Chinese pine plantation development on the loess plateau of China. Pedosphere 22:1–12
CAS
Article
Google Scholar
Yung MC, Jiao Y (2014) Biomineralization of uranium by PhoY phosphatase activity aids cell survival in Caulobacter crescentus. Appl Environ Microbiol 80:4795–804
CAS
Article
Google Scholar
Zhang X, Li F, Liu T, Xu C, Duan D, Peng C, Zhu S, Shi J (2013) The variations in the soil enzyme activity, protein expression, microbial biomass, and community structure of soil contaminated by heavy metals. ISRN Soil Sci Article ID 803150, doi:10.1155/2013/803150