Seasonal variability in community structure and metabolism of active deep-sea microorganisms.

ABSTRACT: Learning about the metabolic activities and adaptations of deep-sea microbes is challenging, as sample collection and retrieval often cause RNA degradation and microbial community shifts. Here, we employed an in situ DNA/RNA co-extraction device to collect 18 time-series nucleic acid samples during winter and summer in the South China Sea, minimizing sampling perturbation for metatranscriptome and metagenome analyses. Between the two seasons, the prokaryotic microbiota showed seasonal variations in species composition. Burkholderiales dominated in summer, whereas Pseudomonadales, Bacillales, and Rhodobacterales were enriched in winter. However, the dominant transcriptionally active taxa affiliated with Nitrososphaerales, MGIII, SAR324, UBA11654, Marinisomatales, and Poseidoniales remained

SUBMITTER: He Y 

PROVIDER: S-EPMC12507015 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature