Summary DNA stable isotope probing and metagenomic sequencing were used to assess the metabolic potential of iron‐reducing bacteria involved in anaerobic aromatic hydrocarbon degradation in oil spill‐affected tidal flats. In a microcosm experiment, 13 C‐toluene was degraded with the simultaneous reduction of F e( III )‐ NTA , which was also verified by quasi‐stoichiometric 13 C‐CO 2 release. The metabolic potential of the domi...

Summary Nitrification of excess ammonia in soil causes eutrophication of water resources and emission of atmospheric N 2 O gas. The first step of nitrification, ammonia oxidation, is mediated by Archaea as well as Bacteria . The physiological reactions mediated by ammonia‐oxidizing archaea (AOA) and their contribution to soil nitrification are still unclear. Results of non‐culture‐based studies have shown the thaumarchaeotal g...