Affiliation:
1. Department of Geology and Geophysics, University of Wisconsin, Madison, Wisconsin 53706
Abstract
ABSTRACT
16S rRNA gene libraries from the lithoautotrophic Fe(II)-oxidizing, nitrate-reducing enrichment culture described by Straub et al. (K. L. Straub, M. Benz, B. Schink, and F. Widdel, Appl. Environ. Microbiol. 62:1458-1460, 1996) were dominated by a phylotype related (95% 16S rRNA gene homology) to the autotrophic Fe(II) oxidizer
Sideroxydans lithotrophicus
. The libraries also contained phylotypes related to known heterotrophic nitrate reducers
Comamonas badia
,
Parvibaculum lavamentivorans
, and
Rhodanobacter thiooxidans
. The three heterotrophs were isolated and found to be capable of only partial (12 to 24%) Fe(II) oxidation, suggesting that the
Sideroxydans
species has primary responsibility for Fe(II) oxidation in the enrichment culture.
Publisher
American Society for Microbiology
Subject
Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology
Cited by
111 articles.
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