Temperature Rise Increases the Bioavailability of Marine Synechococcus-Derived Dissolved Organic Matter.

ABSTRACT: Synechococcus is one group of main primary producers and plays a key role in oceanic carbon fixation and transformation. To explore how the temperature rise affects the bioavailability of Synechococcus-derived dissolved organic matter (SOM) and whether this effect would be altered by the involvement of heterotrophic bacteria, we compared the optical and molecular properties of the SOM of axenic Synechococcus sp. PCC7002 culture (Syn) to that with associated heterotrophic bacteria (SynB) under 15, 18, and 21^°C growth temperatures at exponential and decay growth phases. Our results showed that the temperature rise increased the bioavailability of the SOM of both Syn and SynB cultures by lowering the proportion of the hydrogen-poor a

SUBMITTER: Zhang J 

PROVIDER: S-EPMC9097602 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature