Phylogenetic tree of the isolated bacteria.

<p>Maximum likelihood phylogram of isolated and cultivatable bacteria inferred from the 16S rRNA gene. Bacteria were collected through swapping from the surface of <i>U</i>. <i>rigida</i> collected in tidal pools in 2011. <i>Halomonas</i> sp. MS1, <i>Roseobacter</i> sp. MS2, <i>Sulfitobacter</i> sp. MS3 and <i>Cytophaga</i> sp. MS6 were used as reference strains isolated from <i>U</i>. <i>mutabilis</i> [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0146307#pone.0146307.ref011" target="_blank">11</a>]. The algal morphotypes induced by the bacteria are annotated.