• Albright LJ & Wilson EM (1974) Sub-lethal effects of several metallic salt-organic compound combinations upon heterotropic microflora of a natural water. Water Res 8: 101105.
  • Bardgett RD, Speir TW, Ross DJ & Yeates GW (1994) Impact of pasture contamination by copper, chromium, and arsenic timber preservative on soil microbial properties and nematodes. Biol Fertil Soils 18: 7179.
  • Brandt AP, Karlsson LM & Wennergren U (2005) Lettuce grown in silver laden soil at two different activity levels of soil microorganisms. J Appl Bot Food Qual 79: 3337.
  • Bååth E (1989) Effects of heavy metals in soil on microbial processes and populations (a review). Water Air Soil Pollut 47: 335379.
  • Cornfield AH (1977) Effects of addition 12 metals on carbon dioxide release during incubation of an acid sandy soil. Geoderma 29: 199203.
  • Eriksson J (2001) Halter av 61 spårelement i avloppsslam, stallgödsel, handelsgödsel, nederbörd samt i jord och gröda. Swedish Environmental Protection Agency report 5148.
  • Etchebehere CI, Errazquin I, Barrandeguy E, Dabert P, Moletta R & Muxi L (2001) Evaluation of the denitrifying microbiota of anoxic reactors. FEMS Microbiol Ecol 35: 259265.
  • 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: 13891414.
  • Griffiths BS, Ritz K, Bardgett RD et al. (2000) Ecosystem response of pasture soil communities to fumigation-induced microbial diversity reductions: an examination of the biodiversity-ecosystem function relationship. Oikos 90: 279294.
  • Henry S, Baudoin E, López-Gutiérrez JC, Martin-Laurent F, Brauman A & Philippot L (2004) Quantification of denitrifying bacteria in soils by nirK gene targeted real-time PCR. J Microbiol Methods 59: 327335.
  • Holtan-Hartwig L, Bechmann M, Risnes Höyås T, Linjordet R & Bakken LR (2002) Heavy metal tolerance of soil denitrifying communities: N2O dynamics. Soil Biol Biochem 34: 11811190.
  • Johansson M, Pell M & Stenström J (1998) Kinetics of substrate-induced respiration (SIR) and denitrification: applications to a soil amended with silver. Ambio 27: 4044.
  • Kandeler E, Kampichler C & Horak O (1996) Influence of heavy metals on the functional diversity of soil microbial communities. Biol Fertil Soils 23: 299306.
  • Kozdroj J (2001) Microbial reaction to soil contamination with Cd(II) at different temperatures. Microbiol Res 155: 285290.
  • Mahne I & Tiedje JM (1995) Criteria and methodology for identifying respiratory denitrifiers. Appl Environ Microbiol 61: 11101115.
  • Maiz I, Arambarri I, Garcia R & Millán E (2000) Evaluation of heavy metal availabilty in polluted soils by two sequential extraction procedures using factor analysis. Environ Pollut 110: 39.
  • Martin K, Parsons LL, Murray RE & Smith MS (1988) Dynamics of soil denitrifier populations: relationships between enzyme activity, most-probable-number counts and actual N gas loss. Appl Environ Microbiol 54: 27112716.
  • Moffett BF, Nicholson FA, Uwakwe NC, Chambers BJ, Harris JA & Hill TCJ (2003) Zinc contamination decreases the bacterial diversity of agricultural soils. FEMS Microbiol Ecol 43: 1319.
  • Muller AK, Westergaard K, Christensen S & Sørensen SJ (2001) The effect of long-term mercury pollution on the soil microbial community. FEMS Microbiol Ecol 36: 1119.
  • Murata T, Kanao-Koshikawa M & Takamatsu T (2005) Effects of Pb, Cu, Sb, In and Ag contamination on the proliferation of soil bacterial colonies, soil dehydrogenase activity, and phospholipid fatty acid profiles of soil microbial communities. Water Air Soil Pollut 164: 103118.
  • Pankhurst CE, Doube BM & Gupta VVSR (1997) Biological indicators of soil health: synthesis. Biological Indicators of Soil Health (PankhurstCE, DoubeBM & GuptaVVSR, eds), pp. 419435. CAB International, Wallingford.
  • Pell M, Stenberg B, Stenström J & Torstensson L (1996) Potential denitrification activity assay in soil – with or without chloramphenicol? Soil Biol Biochem 28: 393398.
  • Philippot L (2002) Denitrifying genes in bacterial and Archaeal genomes. Biochim Biophys Acta 1577: 355376.
  • Ranjard L, Lignier L & Chaussod R (2006) Cumulative effects of short-term polymetal contamination on soil bacterial community structure. Appl Environ Microbiol 72: 16841687.
  • Sandaa R-A, Torsvik V & Enger Ö (2001) Influence of long-term heavy metal contamination on microbial communities in soil. Soil Biol Biochem 33: 287295.
  • Throbäck IN, Enwall K, Jarvis Å & Hallin S (2004) Reassessing PCR primers targeting nirS, nirK and nosZ genes for community surveys of denitrifying bacteria with DGGE. FEMS Microbiol Ecol 49: 401417.