title: Isolation of nitrogen-fixing bacteria containing molybdenum-independent nitrogenases from natural environments.
abstract: Seven diazotrophs that grow well under Mo-deficient, N(2)-fixing conditions were isolated from a variety of environments. These isolates fall in the gamma subdivision of the class Proteobacteria and have genes that encode the Mo nitrogenase (nitrogenase 1) and the V nitrogenase (nitrogenase 2). Four of the isolates also harbor genes that encode the iron-only nitrogenase (nitrogenase 3).
authors.affiliation: USDA Agricultural Research Service and Department of Microbiology, North Carolina State University, Raleigh, North Carolina 27695-7615, USA.
authors.forename: T M
authors.initials: TM
authors.lastname: Loveless
authors.forename: J R
authors.initials: JR
authors.lastname: Saah
authors.forename: P E
authors.initials: PE
authors.lastname: Bishop
mesh_terms: D000595:Amino Acid Sequence; D004783:Environmental Microbiology; D020563:Gammaproteobacteria / Q000235:genetics / Q000254:growth & development / Q000302:isolation & purification* / Q000378:metabolism; D005798:Genes, Bacterial; D007501:Iron / Q000737:chemistry; D008969:Molecular Sequence Data; D008982:Molybdenum / Q000737:chemistry; D009586:Nitrogen Fixation / Q000235:genetics*; D009591:Nitrogenase / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D014871:Water Microbiology
chemical_list: D012336:RNA, Ribosomal, 16S; D008982:Molybdenum; D007501:Iron; D009591:Nitrogenase