Phylogenetic tree of the isolated bacteria.
Maximum likelihood phylogram of isolated and cultivatable bacteria inferred from the 16S rRNA gene. Bacteria were collected through swapping from the surface of U. rigida collected in tidal pools in 2011. Halomonas sp. MS1, Roseobacter sp. MS2, Sulfitobacter sp. MS3 and Cytophaga sp. MS6 were used as reference strains isolated from U. mutabilis . The algal morphotypes induced by the bacteria are annotated.