Key role of <i>Desulfobacteraceae</i> in C/S cycles of marine sediments is based on congeneric catabolic-regulatory networks.

ABSTRACT: Marine sediments are highly bioactive habitats, where sulfate-reducing bacteria contribute substantially to seabed carbon cycling by oxidizing ~77 Tmol C_org year^-1. This remarkable activity is largely attributable to the deltaproteobacterial family Desulfobacteraceae of complete oxidizers (to CO₂), which our biogeography focused meta-analysis verified as cosmopolitan. However, the catabolic/regulatory networks underlying this ecophysiological feat at the thermodynamic limit are essentially unknown. Integrating cultivation-based (80 conditions) proteogenomics of six representative Desulfobacteraceae spp., we identify molecular commonalities explaining the family's environmental relevance and success. Desulfobacteraceae genomes are specif

SUBMITTER: Wohlbrand L 

PROVIDER: S-EPMC11887813 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature