Fig 2. Abundance of genes and transcripts encoding for terminal respiratory oxidases in the ETSP OMZ.
(a, b) Abundance of low-affinity (cytochrome c oxidase) and high-affinity (cytochrome bd and cbb3 oxidase) aerobic oxidases in the Peruvian OMZ (station 3). (c-f) Abundance and expression of cytochrome oxidase genes in the OMZ off Chile during cruise MOOMZ-1 [34]. Taxonomic affiliations of cytochrome oxidases are shown on domain, phylum or class level if represented by at least 5% of oxidase-coding sequences. Exact abundance and expression levels as well as taxonomic assignments of the individual types of cytochrome oxidases are given in S3 Table.