Microbial community diversity associated with carbon and nitrogen cycling in permeable shelf sediments.

ABSTRACT: Though a large fraction of primary production and organic matter cycling in the oceans occurs on continental shelves dominated by sandy deposits, the microbial communities associated with permeable shelf sediments remain poorly characterized. Therefore, in this study, we provide the first detailed characterization of microbial diversity in marine sands of the South Atlantic Bight through parallel analyses of small-subunit (SSU) rRNA gene (Bacteria), nosZ (denitrifying bacteria), and amoA (ammonia-oxidizing bacteria) sequences. Communities were analyzed by parallel DNA extractions and clone library construction from both sediment core material and manipulated sediment within column experiments designed for geochemical rate determinations. Rapid organic-matter degradation and coupled nitrifi

SUBMITTER: Hunter EM 

PROVIDER: S-EPMC1563612 | biostudies-literature | 2006 Sep

REPOSITORIES: biostudies-literature