Eelgrass Sediment Microbiome as a Nitrous Oxide Sink in Brackish Lake Akkeshi, Japan.

ABSTRACT: Nitrous oxide (N₂O) is a powerful greenhouse gas; however, limited information is currently available on the microbiomes involved in its sink and source in seagrass meadow sediments. Using laboratory incubations, a quantitative PCR (qPCR) analysis of N₂O reductase (nosZ) and ammonia monooxygenase subunit A (amoA) genes, and a metagenome analysis based on the nosZ gene, we investigated the abundance of N₂O-reducing microorganisms and ammonia-oxidizing prokaryotes as well as the community compositions of N₂O-reducing microorganisms in in situ and cultivated sediments in the non-eelgrass and eelgrass zones of Lake Akkeshi, Japan. Laboratory incubations showed that N₂O was reduced by eelgrass sediments and emitted by non-eelgrass sediments

SUBMITTER: Nakagawa T 

PROVIDER: S-EPMC6440730 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature