Cobaviruses - a new globally distributed phage group infecting Rhodobacteraceae in marine ecosystems.

ABSTRACT: Bacteriophages are widely considered to influence bacterial communities, however most phages are still unknown or not studied well enough to understand their ecological roles. We have isolated two phages infecting Lentibacter sp. SH36, affiliated with the marine Roseobacter group, and retrieved similar phage genomes from publicly available metagenomics databases. Phylogenetic analysis placed the new phages within the Cobavirus group, in the here newly proposed genus Siovirus and subfamily Riovirinae of the Podoviridae. Gene composition and presence of direct terminal repeats in cultivated cobaviruses point toward a genome replication and packaging strategy similar to the T7 phage. Investigation of the genomes suggests that viral lysis of the cell proceeds via the canonical holin-endolysin

SUBMITTER: Bischoff V 

PROVIDER: S-EPMC6775973 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature