Geology defines microbiome structure and composition in nunataks and valleys of the Sor Rondane Mountains, East Antarctica.

ABSTRACT: Understanding the relation between terrestrial microorganisms and edaphic factors in the Antarctic can provide insights into their potential response to environmental changes. Here we examined the composition of bacterial and micro-eukaryotic communities using amplicon sequencing of rRNA genes in 105 soil samples from the Sør Rondane Mountains (East Antarctica), differing in bedrock or substrate type and associated physicochemical conditions. Although the two most widespread taxa (Acidobacteriota and Chlorophyta) were relatively abundant in each sample, multivariate analysis and co-occurrence networks revealed pronounced differences in community structure depending on substrate type. In moraine substrates, Actinomycetota and Cercozoa were the most abundant bacterial and eukaryotic phyla, w

SUBMITTER: Savaglia V 

PROVIDER: S-EPMC10877063 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature