A Novel Phage Indirectly Regulates Diatom Growth by Infecting a Diatom-Associated Biofilm-Forming Bacterium.

ABSTRACT: Algae and heterotrophic bacteria have close and intricate interactions, which are regulated by multiple factors in the natural environment. Phages are the major factor determining bacterial mortality rates. However, their impacts on the alga-associated bacteria and thus on the alga-bacterium interactions are poorly understood. Here, we obtained a diatom-associated bacterium, Stappia indica SNL01, that could form a biofilm and had an inhibitory effect on the growth of the diatom Thalassiosira pseudonana. Meanwhile, phage SI01, with a double-stranded circular DNA genome (44,247 bp), infecting S. indica SNL01 was isolated. Phylogenetic analysis revealed that phage SI01 represents a novel member of the Podoviridae family. The phage contained multiple lysis genes encoding cell wall-lysin

SUBMITTER: Nair S 

PROVIDER: S-EPMC8904054 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature