Heavy metal tolerance of Fe(III)-reducing microbial communities in contaminated creek bank soils.

ABSTRACT: Fe(III)-reducing soil enrichment cultures can tolerate 100 μM Cu and Cd, 150 μM Co, 600 μM Ni, and 2,500 μM Zn. Metal-tolerant cultures were dominated by Geobacter-related Deltaproteobacteria and Gram-positive Firmicutes spp. (Clostridia and Sedimentibacter). A Cd- and Cu-tolerant Fe(III)-reducing coculture of Desulfosporosinus and Desulfitobacterium indicated the importance of the Firmicutes for Fe(III) reduction in the presence of metals.

SUBMITTER: Burkhardt EM 

PROVIDER: S-EPMC3126387 | biostudies-literature | 2011 May

REPOSITORIES: biostudies-literature