Microbial metabolism in deep terrestrial subsurface communities - amino acids as biosignatures.

ABSTRACT: The deep terrestrial subsurface (DTS) biosphere consists of a variety of distinct microbial taxa, mostly bacterial. The mechanisms by which microbes dynamically manage the uptake and concurrent utilization of nutrients within the DTS environments remain largely unexplored. Here, we examined the utilization patterns of amino acids and other polar metabolites in cultured DTS bacterial communities to investigate the adaptive responses and metabolic pathways employed under varying nutrient conditions to gain insight into how environmental shifts impact the metabolism of these communities. Previously, we found that changes in growth conditions affected the composition and size of the bacterial communities enriched from these oligotrophic, anoxic environments and induced changes in the productio

SUBMITTER: Herzig M 

PROVIDER: S-EPMC12811484 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature