The occurrence and role of ubiquinone in electron transport to oxygen and nitrate in aerobically, anaerobically and symbiotically grown Rhizobium japonicum

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dc.contributor.authorDaniel, Roy M.
dc.date.accessioned2010-09-02T02:35:59Z
dc.date.available2010-09-02T02:35:59Z
dc.date.issued1979
dc.description.abstractUbiquinone was extracted from free-living Rhizobium japonicum, grown aerobically or anaerobically, and from the symbiotic bacteroid form; it was tentatively identified as the Q-10 homologue. The ubiquinone concentration was highest in symbiotically grown R. japonicum but the ratio ubiquinone:total cytochrome was about 1•5:1 in membrane particles from organisms grown under all three conditions. The ubiquinone was reduced 75% by NADH, completely oxidized by oxygen but not oxidized by nitrate. NADH oxidase activity and nitrate reductase activity in membrane particles from organisms grown under the different conditions were similar except that nitrate reductase activity was low in aerobically grown organisms. It is concluded that ubiquinone functions in electron transport to oxygen but not to nitrate.en_NZ
dc.identifier.citationDaniel, R.M. (1979). The occurrence and role of ubiquinone in electron transport to oxygen and nitrate in aerobically, anaerobically and symbiotically grown Rhizobium japonicum. Journal of General Microbiology, 110(2), 333-337.en_NZ
dc.identifier.doi10.1099/00221287-110-2-333en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/4511
dc.language.isoen
dc.subjectRhizobium japonicumen_NZ
dc.titleThe occurrence and role of ubiquinone in electron transport to oxygen and nitrate in aerobically, anaerobically and symbiotically grown Rhizobium japonicumen_NZ
dc.typeJournal Articleen_NZ
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