Dataset Information

Growth of sedimentary Bathyarchaeota on lignin as an energy source.

ABSTRACT: Members of the archaeal phylum Bathyarchaeota are among the most abundant microorganisms on Earth. Although versatile metabolic capabilities such as acetogenesis, methanogenesis, and fermentation have been suggested for bathyarchaeotal members, no direct confirmation of these metabolic functions has been achieved through growth of Bathyarchaeota in the laboratory. Here we demonstrate, on the basis of gene-copy numbers and probing of archaeal lipids, the growth of Bathyarchaeota subgroup Bathy-8 in enrichments of estuarine sediments with the biopolymer lignin. Other organic substrates (casein, oleic acid, cellulose, and phenol) did not significantly stimulate growth of Bathyarchaeota Meanwhile, putative bathyarchaeotal tetraether lipids incorporated 13C from 13C-bicarbonate only when added in concert with lignin. Our results are consistent with organoautotrophic growth of a bathyarchaeotal group with lignin as an energy source and bicarbonate as a carbon source and shed light into the cycling of one of Earth's most abundant biopolymers in anoxic marine sediment.

SUBMITTER: Yu T

PROVIDER: S-EPMC6003339 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature

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Growth of sedimentary Bathyarchaeota on lignin as an energy source.

Yu Tiantian T Wu Weichao W Liang Wenyue W Lever Mark Alexander MA Hinrichs Kai-Uwe KU Wang Fengping F

Proceedings of the National Academy of Sciences of the United States of America 20180517 23

Members of the archaeal phylum Bathyarchaeota are among the most abundant microorganisms on Earth. Although versatile metabolic capabilities such as acetogenesis, methanogenesis, and fermentation have been suggested for bathyarchaeotal members, no direct confirmation of these metabolic functions has been achieved through growth of Bathyarchaeota in the laboratory. Here we demonstrate, on the basis of gene-copy numbers and probing of archaeal lipids, the growth of Bathyarchaeota< ...[more]

PMID: 29773709

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Dataset Information

Growth of sedimentary Bathyarchaeota on lignin as an energy source.

Publications

Growth of sedimentary <i>Bathyarchaeota</i> on lignin as an energy source.

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