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Enrichment of ANME-1 from Eckernförde Bay sediment on thiosulfate, methane and short-chain fatty acids

Paper ID Volume ID Publish Year Pages File Format Full-Text
23907 43482 2012 8 PDF Available
Title
Enrichment of ANME-1 from Eckernförde Bay sediment on thiosulfate, methane and short-chain fatty acids
Abstract

The microorganisms involved in sulfate-dependent anaerobic oxidation of methane (AOM) have not yet been isolated. In an attempt to stimulate the growth of anaerobic methanotrophs and associated sulfate reducing bacteria (SRB), Eckernförde Bay sediment was incubated with different combinations of electron donors and acceptors. The organisms involved in AOM coupled to sulfate reduction (ANME-1, ANME-2, and Desulfosarcina/Desulfococcus) were monitored using specific primers and probes. With thiosulfate as sole electron acceptor and acetate, pyruvate or butyrate as the sole electron donor, ANME-1 became the dominant archaeal species. This finding suggests that ANME-1 archaea are not obligate methanotrophs and that ANME-1 can grow on acetate, pyruvate or butyrate.

► The presence of thiosulfate and acetate, pyruvate or butyrate favors ANME-1 proliferation. ► ANME-1 are probably not obligate methanotrophs. ► It is conceivable that ANME-1 are, at least partly, responsible for the consumption of methanogenic substrates.

Keywords
Anaerobic methane oxidation; AOM; ANME; Sulfate reduction
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Enrichment of ANME-1 from Eckernförde Bay sediment on thiosulfate, methane and short-chain fatty acids
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 157, Issue 4, 20 February 2012, Pages 482–489
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
Online Support
Any Questions? feel free to contact us