Variations in bacterial and archaeal communities along depth profiles of Alaskan soil cores.

ABSTRACT: Understating the microbial communities and ecological processes that influence their structure in permafrost soils is crucial for predicting the consequences of climate change. In this study we investigated the bacterial and archaeal communities along depth profiles of four soil cores collected across Alaska. The bacterial and archaeal diversity (amplicon sequencing) overall decreased along the soil depth but the depth-wise pattern of their abundances (qPCR) varied by sites. The community structure of bacteria and archaea displayed site-specific pattern, with a greater role of soil geochemical characteristics rather than soil depth. In particular, we found significant positive correlations between methane trapped in cores and relative abundance of methanogenic archaeal genera, indicating a

SUBMITTER: Tripathi BM 

PROVIDER: S-EPMC5765012 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature