Methanogenesis and sulfate reduction: Competitive and noncompetitive substrates in estuarine sediments

Applied and Environmental Microbiology
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Abstract

Sulfate ions did not inhibit methanogenesis in estuarine sediments supplemented with methanol, trimethylamine, or methionine. However, sulfate greatly retarded methanogenesis when hydrogen or acetate was the substrate. Sulfate reduction was stimulated by acetate, hydrogen, and acetate plus hydrogen, but not by methanol or trimethylamine. These results indicate that sulfate-reducing bacteria will outcompete methanogens for hydrogen, acetate, or both, but will not compete with methanogens for compounds like methanol, trimethylamine, or methionine, thereby allowing methanogenesis and sulfate reduction to operate simultaneously within anoxic, sulfate-containing sediments.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Methanogenesis and sulfate reduction: Competitive and noncompetitive substrates in estuarine sediments
Series title Applied and Environmental Microbiology
Volume 44
Issue 6
Year Published 1982
Language English
Publisher American Society for Microbiology
Contributing office(s) Pacific Regional Director's Office, San Francisco Bay-Delta
Description 7 p.
First page 1270
Last page 1276
Online Only (Y/N) N
Additional Online Files (Y/N) N