Archaea as 'flexitarians': Ammonia-oxidizing microbes also feed on amino acids
Researchers have discovered that ammonia-oxidizing archaea living in marine sponges are 'flexitarians' that consume amino acids in addition to ammonia. This mixotrophic behavior suggests these microbes play a more complex role in symbiotic relationships than previously understood.
Why it matters
Understanding these metabolic pathways provides new insights into the oldest animal-microbe symbioses and the fundamental biology of marine ecosystems.
edited by Gaby Clark , reviewed by Robert Egan
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