FIG 5.

Proposed substrate preferences and ecophysiological interactions of the three dominant haloarchaea. Shown is a cartoon derived from the interpretation of metaproteome data, highlighting the distinct functional properties of Hht. litchfieldiae, DL31, and Hrr. lacusprofundi and their inferred interactions that occur in Deep Lake. DHA, dihydroxyacetone. Scale is not indicative of organism size or relative contribution to the system. (Animal silhouettes courtesy of PhyloPic [http://phylopic.org/].)