Intracellular bacteria are common and taxonomically diverse in cultured and in hospite algal endosymbionts of coral reefs.

ABSTRACT: Corals house a variety of microorganisms which they depend on for their survival, including endosymbiotic dinoflagellates (Symbiodiniaceae) and bacteria. While cnidarian-microorganism interactions are widely studied, Symbiodiniaceae-bacteria interactions are only just beginning to receive attention. Here, we describe the localization and composition of the bacterial communities associated with cultures of 11 Symbiodiniaceae strains from nine species and six genera. Three-dimensional confocal laser scanning and electron microscopy revealed bacteria are present inside the Symbiodiniaceae cells as well as closely associated with their external cell surface. Bacterial pure cultures and 16S rRNA gene metabarcoding from Symbiodiniaceae cultures highlighted distinct and highly diverse bacterial c

SUBMITTER: Maire J 

PROVIDER: S-EPMC8245515 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature