Extended Data Fig. 10: Summary of the processes and mediators of trace gas cycling at the soil-atmosphere interface.
From: Trace gas oxidizers are widespread and active members of soil microbial communities
The soil bacterial phyla capable of consuming the trace gases H2 (via group 1 and 2 [NiFe]-hydrogenases), CO (via form I carbon monoxide dehydrogenases), and CH4 (via particulate methane monooxygenases) are shown. They are listed in order of the number of metagenome-assembled genomes recovered (black for highly abundant and grey for less abundant trace gas oxidizers). The downward arrows show the net consumption of atmospheric H2, CO, and CH4 by soil bacteria. The upward arrows show processes that result in endogenous production and internal cycling of trace gases. The green boxes indicate biotic processes, whereas the brown boxes indicate abiotic processes.
