title: Pacific Northwest marine sediments contain ammonia-oxidizing bacteria in the beta subdivision of the Proteobacteria.
abstract: The diversity of ammonia-oxidizing bacteria in aquatic sediments was studied by retrieving ammonia monooxygenase and methane monooxygenase gene sequences. Methanotrophs dominated freshwater sediments, while beta-proteobacterial ammonia oxidizers dominated marine sediments. These results suggest that gamma-proteobacteria such as Nitrosococcus oceani are minor members of marine sediment ammonia-oxidizing communities.
authors.affiliation: Center for Microbial Ecology, Michigan State University, East Lansing, Michigan 48824, USA. nolds@uwstout.edu
authors.forename: S C
authors.initials: SC
authors.lastname: Nold
authors.forename: J
authors.initials: J
authors.lastname: Zhou
authors.forename: A H
authors.initials: AH
authors.lastname: Devol
authors.forename: J M
authors.initials: JM
authors.lastname: Tiedje
mesh_terms: D000641:Ammonia / Q000378:metabolism*; D001483:Base Sequence; D020562:Betaproteobacteria / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D017931:DNA Primers; D020563:Gammaproteobacteria / Q000145:classification / Q000235:genetics; D019015:Geologic Sediments / Q000382:microbiology*; D008969:Molecular Sequence Data; D015205:Northwestern United States; D010084:Oxidation-Reduction; D010088:Oxidoreductases / Q000235:genetics; D010105:Oxygenases / Q000235:genetics; D010140:Pacific Ocean; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D012623:Seawater / Q000382:microbiology*
chemical_list: D017931:DNA Primers; D000641:Ammonia; D010088:Oxidoreductases; D010105:Oxygenases; C021555:methane monooxygenase; C045582:ammonia monooxygenase