Metaproteomic analysis of a winter to spring succession in coastal northwest Atlantic Ocean microbial plankton.

ABSTRACT: In this study, we used comparative metaproteomics to investigate the metabolic activity of microbial plankton inhabiting a seasonally hypoxic basin in the Northwest Atlantic Ocean (Bedford Basin). From winter to spring, we observed a seasonal increase in high-affinity membrane transport proteins involved in scavenging of organic substrates; Rhodobacterales transporters were strongly associated with the spring phytoplankton bloom, whereas SAR11 transporters were abundant in the underlying waters. A diverse array of transporters for organic compounds were similar to the SAR324 clade, revealing an active heterotrophic lifestyle in coastal waters. Proteins involved in methanol oxidation (from the OM43 clade) and carbon monoxide (from a wide variety of bacteria) were identified throughout Bedfo

SUBMITTER: Georges AA 

PROVIDER: S-EPMC4030229 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature