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  Strain FAc12, a dissimilatory iron-reducing member of the Anaeromyxobacter subgroup of Myxococcales

Treude, N., Rosencrantz, D., Liesack, W., & Schnell, S. (2003). Strain FAc12, a dissimilatory iron-reducing member of the Anaeromyxobacter subgroup of Myxococcales. FEMS Microbiology Ecology, 44, 261-269. doi:10.1016/s0168-6496(03)00048-5.

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 Creators:
Treude, N.1, Author           
Rosencrantz, D.1, Author           
Liesack, W.2, Author           
Schnell, S.3, Author           
Max-Planck-Institut für terrestrische Mikrobiologie, Editor              
Affiliations:
1Department of Biogeochemistry, Alumni, Max Planck Institute for Terrestrial Microbiology, Max Planck Society, ou_3266312              
2Department-Independent Research Group Methanotrophic Bacteria, and Environmental Genomics/Transcriptomics, Max Planck Institute for Terrestrial Microbiology, Max Planck Society, ou_3266274              
3Department of Biochemistry, Alumni, Max Planck Institute for Terrestrial Microbiology, Max Planck Society, ou_3266311              

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Free keywords: 16S RIBOSOMAL-RNA, RICE PADDY SOIL, SP-NOV, PHYLOGENETIC ANALYSIS, COMMUNITY STRUCTURE, METHANE PRODUCTION, FE(III) REDUCTION, GEN. NOV., BACTERIA, DIVERSITY
 Abstract: Dissimilatory iron reduction is of quantitative importance during anaerobic degradation of organic matter in flooded rice field soils. To isolate dissimilatory Fe(III)-reducing microorganisms from rice soil, enrichments were carried out with acetate and ferrihydrite. One of these resulted in the isolation of strain FAc12. This organism grew anaerobically in defined mineral medium with acetate as electron donor and with ferric citrate, ferrihydrite, or nitrate as electron acceptor. Strain FAc12 also grew well aerobically in defined mineral medium with acetate, citrate, glucose, or with complex medium. Comparative sequence analysis of its 16S rRNA gene revealed that strain FAc12 is most closely related to the very recently described Anaeromyxobacter dehalogenans within the order Myxococcales. The overall similarity value between the 16S rRNA gene sequences of strain FAc12 and the type strain of A. dehalogenans (2CP-1) is 99.5%. A. dehalogenans has been reported to be the first facultative anaerobic myxobacterium, while all other members of the Myxococcales were known to be strict aerobes. A. dehalogenans is able to grow by chlororespiration and to utilize nitrate as terminal electron acceptor for growth. Cultivation-independent retrieval of 16S rRNA gene sequences revealed that rice roots are also colonized by various members of this novel subgroup. This information and the metabolic capacity of strain FAc12 allows the assumption that these organisms are physiologically adapted to environments characterized by spatial and temporal fluctuations between oxic and anoxic conditions, as is typically the case for flooded rice soil.

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 Dates: 2003
 Publication Status: Issued
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 Rev. Type: Peer
 Identifiers: eDoc: 15671
DOI: 10.1016/s0168-6496(03)00048-5
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Title: FEMS Microbiology Ecology
Source Genre: Journal
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Pages: - Volume / Issue: 44 Sequence Number: - Start / End Page: 261 - 269 Identifier: -