Microbial community composition along a 50 000-year lacustrine sediment sequence.

ABSTRACT: For decades, microbial community composition in subseafloor sediments has been the focus of extensive studies. In deep lacustrine sediments, however, the taxonomic composition of microbial communities remains undercharacterized. Greater knowledge on microbial diversity in lacustrine sediments would improve our understanding of how environmental factors, and resulting selective pressures, shape subsurface biospheres in marine and freshwater sediments. Using high-throughput sequencing of 16S rRNA genes across high-resolution climate intervals covering the last 50 000 years in Laguna Potrok Aike, Argentina, we identified changes in microbial populations in response to both past environmental conditions and geochemical changes of the sediment during burial. Microbial communities in Holocene se

SUBMITTER: Vuillemin A 

PROVIDER: S-EPMC5905624 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature