Fig. 2: Taxonomic composition of bacterial communities based on 16S rRNA gene analysis of non-fractionated DNA, shown at the genus and class levels.

Individual plots are shown for triplicate incubations in each condition. Genera individually representing less than 1% relative sequence abundance have been collapsed in the “<1%” category. Abbreviations are shown on the bars for abundant groups discussed in the text. Arc Arcobacter; Col Colwellia; Gla Glaciecola; Wen Wenyingzhuangia; Ten Tenacibaculum; Psb Psychrobium; Psm Psychromonas.