Insights into the Vertical Stratification of Microbial Ecological Roles across the Deepest Seawater Column on Earth.

ABSTRACT: The Earth's oceans are a huge body of water with physicochemical properties and microbial community profiles that change with depth, which in turn influences their biogeochemical cycling potential. The differences between microbial communities and their functional potential in surface to hadopelagic water samples are only beginning to be explored. Here, we used metagenomics to investigate the microbial communities and their potential to drive biogeochemical cycling in seven different water layers down the vertical profile of the Challenger Deep (0-10,500 m) in the Mariana Trench, the deepest natural point in the Earth's oceans. We recovered 726 metagenome-assembled genomes (MAGs) affiliated to 27 phyla. Overall, biodiversity increased in line with increased depth. In addition, the genome s

SUBMITTER: Xue CX 

PROVIDER: S-EPMC7565560 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature