Influence of Extremely High Pressure and Oxygen on Hydrocarbon-Enriched Microbial Communities in Sediments from the Challenger Deep, Mariana Trench.

ABSTRACT: Recent studies reported that highly abundant alkane content exists in the ~11,000 m sediment of the Mariana Trench, and a few key alkane-degrading bacteria were identified in the Mariana Trench. At present, most of the studies on microbes for degrading hydrocarbons were performed mainly at atmospheric pressure (0.1 MPa) and room temperature; little is known about which microbes could be enriched with the addition of n-alkanes under in-situ environmental pressure and temperature conditions in the hadal zone. In this study, we conducted microbial enrichments of sediment from the Mariana Trench with short-chain (SCAs, C₇-C₁₇) or long-chain (LCAs, C₁₈-C₃₆) n-alkanes and incubated them at 0.1 MPa/100 MPa and 4 °C under aerobic or anaerob

SUBMITTER: Liu Y 

PROVIDER: S-EPMC10052102 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature