Community structure and activity potentials of archaeal communities in hadal sediments of the Mariana and Mussau trenches.

ABSTRACT: Hadal trenches are the least explored marine habitat on earth. Archaea has been shown to be the dominant group in trench sediments. However, the activity potentials and detailed diversity of these communities as well as their inter-trench variations are still not known. In this study, we combined datasets from two pairs of primers to investigate at high resolution the structure and activity potentials of the archaeal communities in vertically sectioned sediment cores taken from the deepest points of the Mariana (10,853 m) and Mussau (7011 m) trenches. The compositions of the potentially active communities revealed, via 16S ribosomal RNA gene (rDNA) and RNA (rRNA), significant differences between samples. Marine Group I (MGI), with nine identified subgroups, was the most dominant class in t

SUBMITTER: Wang Z 

PROVIDER: S-EPMC10077302 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature