title: Nitric oxide complex of cytochrome c' in cells of denitrifying bacteria.
abstract: Electron paramagnetic resonance (EPR) spectra at 77K have been measured for the dried cells of three groups of chemoheterotrophic bacteria cultured in the presence of nitrate: I, denitrifying bacteria containing cytochrome c' (Alcaligenes sp. NCIB 11015, Achromobacter xylosoxidans GIFU 543); II, denitrifying bacteria in which cytochrome c' has not been found (Alcaligenes faecalis IAM 1015, Bacillus firmus NIAS 237, Pseudomonas stutzeri ATCC 17641); III, non-denitrifying bacterium containing cytochrome c' (A. xylosoxidans GIFU 1055). A characteristic three-line EPR signal was detected only in the dried cells of group I, and was assigned to NO-cytochrome c' complex. The probable physiological role of the cytochrome c' in denitrifying bacteria is discussed.
authors.affiliation: Environmental Science Insitute of Hyogo Prefecture, Kobe.
authors.forename: T
authors.initials: T
authors.lastname: Yoshimura
authors.forename: H
authors.initials: H
authors.lastname: Iwasaki
authors.forename: S
authors.initials: S
authors.lastname: Shidara
authors.forename: S
authors.initials: S
authors.lastname: Suzuki
authors.forename: A
authors.initials: A
authors.lastname: Nakahara
authors.forename: T
authors.initials: T
authors.lastname: Matsubara
mesh_terms: D001419:Bacteria / Q000032:analysis* / Q000201:enzymology; D003574:Cytochrome c Group / Q000032:analysis*; D004578:Electron Spin Resonance Spectroscopy; D009566:Nitrates / Q000378:metabolism*; D009569:Nitric Oxide / Q000032:analysis*
chemical_list: D003574:Cytochrome c Group; D009566:Nitrates; D009569:Nitric Oxide