TABLE 2.

KEGG pathways significantly enriched in hypolith versus biocrust communities^a

Pathway no.	Pathway name
ko01055	Biosynthesis of vancomycin group antibiotics***
ko01051	Biosynthesis of ansamycins***
ko00522	Biosynthesis of 12-, 14- and 16-membered macrolides***
ko01056	Biosynthesis of type II polyketide backbone***
ko03013	RNA transport***
ko00650	Butanoate metabolism***
ko00260	Glycine, serine, and threonine metabolism***
ko00680	Methane metabolism***
Ko00720	Carbon fixation pathways in prokaryotes**
ko00195	Photosynthesis**
ko00523	Polyketide sugar unit biosynthesis*
ko00630	Glyoxylate and dicarboxylate metabolism*

^a***, P < 0.001; **, P < 0.01; *, P < 0.05.