A new family of uncultivated bacteria involved in methanogenesis from the ubiquitous osmolyte glycine betaine in coastal saltmarsh sediments.

ABSTRACT:

Background

Coastal environments are dynamic and rapidly changing. Living organisms in coastal environments are known to synthesise large quantities of organic osmolytes, which they use to cope with osmotic stresses. The organic osmolyte glycine betaine (GBT) is ubiquitously found in marine biota from prokaryotic Bacteria and Archaea to coastal plants, marine protozoa, and mammals. In intertidal coastal sediment, GBT represents an important precursor of natural methane emissions and as much as 90% of total methane production in these ecosystems can be originated from methanogenesis from GBT and its intermediate trimethylamine through microbial metabolism.

Results

We set out to uncover the microorganisms responsible for methanogenesis from GBT using stable isotope labelling an

SUBMITTER: Jones HJ 

PROVIDER: S-EPMC6716910 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature