Exoenzymes as a Signature of Microbial Response to Marine Environmental Conditions.

ABSTRACT: Microbial heterotopic metabolism in the ocean is fueled by a supply of essential nutrients acquired via exoenzymes catalyzing depolymerization of high-molecular-weight compounds. Although the rates of activity for a variety of exoenzymes across various marine environments are well established, the factors regulating the production of these exoenzymes, and to some extent their correlation with microbial community composition, are less known. This study focuses on addressing these challenges using a mesocosm experiment that compared a natural seawater microbial community (control) and exposed (to oil) treatment. Exoenzyme activities for β-glucosidase, leucine aminopeptidase (LAP), and lipase were significantly correlated with dissolved nutrient concentrations. We measured correlations betwee

SUBMITTER: Kamalanathan M 

PROVIDER: S-EPMC7159900 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature