Enrichment of Chloroflexota bacterium Chflx-SY6, Cloacimonadota bacterium Cloa-SY6, Ignavibacteriota bacterium Igna-SY6, and the Planctomycetota bacterium Plnct-SY6 from the deep sulfidic waters of the Black Sea. The relative abundance (as determined by 16S rRNA gene amplicon sequencing) of the Chloroflexota bacterium Chflx-SY6, Cloacimonadota bacterium Cloa-SY6, Ignavibacteriota bacterium Igna-SY6, and the Planctomycetota bacterium Plnct-SY6 in the original sea water from 2000 m (red bars) and in the enrichment cultures (green hatched bars) using cellulose, propionate, cellulose, and chitin containing media, respectively. For reference, the relative abundance of the phyla in the original Black Sea water (purple bars) is indicated. The enrichment factor is shown in green hatched bars
