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Literature summary for 1.8.99.5 extracted from

  • Moreau, J.W.; Zierenberg, R.A.; Banfield, J.F.
    Diversity of dissimilatory sulfite reductase genes (dsrAB) in a salt marsh impacted by long-term acid mine drainage (2010), Appl. Environ. Microbiol., 76, 4819-4828.
    View publication on PubMedView publication on EuropePMC

Organism

Organism UniProt Comment Textmining
Soil bacterium
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General Information

General Information Comment Organism
physiological function in salt marsh sediments exposed to acid mine drainage for over 100 years, recovered dsrAB sequences of dissimilatory sulfite redactase genes from three sites indicate the dominance of a single Desulfovibrio species. Other major sequence clades are related most closely to Desulfosarcina, Desulfococcus, Desulfobulbus, and Desulfosporosinus species. The presence of metal sulfides with low delta34S values relative to delta34S values of pore water sulfate show that sediment sulfate-reducing bacteria populations are actively reducing sulfate under ambient conditions (pH of about 2), although possibly within less acidic microenvironments. Findings imply a highly dynamic microbially mediated cycling of sulfate and sulfide, and thus the speciation and mobility of chalcophilic contaminant metal(loid)s in acid mine drainage-impacted marsh sediments Soil bacterium