Stimulation of carbon nanomaterials on syntrophic oxidation of butyrate in sediment enrichments and a defined coculture.

ABSTRACT: It remains elusive if direct interspecies electron transfer (DIET) occurs in canonical syntrophy involving short-chain fatty acids oxidation. In the present study, we determined the effects of carbon nanomaterials on syntrophic oxidation of butyrate in two lake sediment enrichments and a defined coculture comprising Syntrophomonas wolfei and Methanococcus Maripaludis. After four continuous transfers of enrichment cultivation, Syntrophomonas dominated the bacterial populations in enrichments, and the dominated methanogens comprised Methanosarcina and Methanospirillum in one enrichment (from Weiming Lake) and Methanoregula and Methanospirillum in another (from Erhai Lake). Butyrate oxidation and CH₄ production was significantly accelerated by carbon nanotubes (CNTs) in both enrich

SUBMITTER: Zhang W 

PROVIDER: S-EPMC6093938 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature