[Geomicrobiological studies. XIV. Heavy metal tolerance of desulfurizing bacteria under various ecological conditions].
Tolerance and adaptation to heavy metals of Desulfovibrio- and Desulfotomaculum-strains of different origin have been investigated in enrichment cultures under different conditions of sulphate supply. Three groups of low, medium, and high toxicity were found with As, V, and Mo in the first, Ni, Sb, Co, and Hg in the second, and Cd, Zn, U, and Cu in the third group. If the SO"4-supply was restricted to heavy metal sulphates with a relation of 1:1 of heavy metal- and SO"4 -ions (2:3 with Sb2(SO4)3) the tolerance was somewhat lowered. Adaptation to higher concentrations of heavy metals was possible, if the strains had not yet been exposed and adapted to higher concentration levels at their natural habitats. The tolerance range of desulfurizers has been compared with the tolerance range of different biochemical types of microorganisms.
D001406:Bacillaceae / Q000187:drug effects* / Q000378:metabolism; D003901:Desulfovibrio / Q000187:drug effects* / Q000378:metabolism; D004352:Drug Resistance, Microbial; D008670:Metals / Q000494:pharmacology*; D012988:Soil Microbiology; D013431:Sulfates / Q000378:metabolism; D014871:Water Microbiology
D008670:Metals; D013431:Sulfates
Geomikrobiologische Untersuchungen. XIV. Schewermetall-Toleranz desulfurizierender Bakterien unter verschiedenen ökologischen Bedingungen.