Figure 3.

Predicted general metabolisms of the WOR archaea in relation to the geochemical layer from which they were recovered. In addition, the genome-based metabolic predictions for the Bathyarchaeota subgroups −6, −1, −7/17 and −15 (Lazar et al., 2015), the Thorarchaeota (Seitz et al., 2016) and the Hadesarchaea (Baker et al., 2016) were added. TOC, total organic carbon; MCG, miscellaneous crenarchaeotal group (Bathyarchaeota); CYS, cysteine. WOR picture modified from http://www.learnnc.org/lp/editions/cede_blackwaterriver/54.