Temperature enhances the functional diversity of dissolved organic matter utilization by coastal marine bacteria.

ABSTRACT: Although bulk bacterial metabolism in response to temperature has been determined for different oceanic regions, the impact of temperature on the functional diversity of dissolved organic matter (DOM) utilization has been largely unexplored. Here, we hypothesized that besides modifying the rates of carbon utilization, temperature can also alter the diversity of substrates utilized. The patterns of utilization of 31 model DOM compounds (as represented in Biolog EcoPlate™) by bacterioplankton were assessed using inocula from surface waters of the southern Bay of Biscay continental shelf over 1 year. Bacteria utilized more polymers and carbohydrates in late spring and summer than in winter, likely reflecting changes in substrate availability linked to the release and accumulation of DOM in ph

SUBMITTER: Moran XAG 

PROVIDER: S-EPMC10103754 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature