▪ Abstract 

Anaerobic oxidation of methane and ammonium are two different processes catalyzed by completely unrelated microorganisms. Still, the two processes do have many interesting aspects in common. First, both of them were once deemed biochemically impossible and nonexistent in nature, but have now been identified as major factors in global carbon and nitrogen cycling. Second, the microorganisms responsible for both processes cannot be grown in pure culture yet; their detection and identification were based on molecular ecology, tracer studies, use of lipid biomarkers, and enrichment cultures. Third, these microorganisms grow extremely slowly (doubling time from weeks to months). Fourth, both processes have a good potential for application in biotechnology. Because both anaerobic methane and ammonium oxidation have been separately and excellently reviewed elsewhere, we focus on aspects of interest in the context of current developments in microbiology and explore the added value of reviewing these two processes in one place.


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  • Article Type: Review Article
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