Diversity of cultivable protease-producing bacteria and their extracellular proteases associated to scleractinian corals.

ABSTRACT: Protease-producing bacteria play a vital role in degrading organic nitrogen in marine environments. However, the diversity of the bacteria and extracellular proteases has seldom been addressed, especially in communities of coral reefs. In this study, 136 extracellular protease-producing bacterial strains were isolated from seven genera of scleractinian corals from Luhuitou fringing reef, and their protease types were characterized. The massive coral had more cultivable protease-producing bacteria than branching or foliose corals. The abundance of cultivable protease-producing bacteria reached 10⁶ CFU g^-1 of coral. Phylogenetic analysis of 16S rRNA gene sequences revealed that the isolates were assigned to 24 genera, from which 20 corresponded to the phyla Firmicute

SUBMITTER: Su H 

PROVIDER: S-EPMC7210813 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature