Carotenoids and Ubiquinone in Aerobically Grown Cells of an Aerobic Photosynthetic Bacterium, Erythrobacter Species OCh 114

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概要

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• Carotenoids and ubiquinone in aerobically grown cells of Erythrobacter species OCh1 14 were identified, which contained a considerable amount of bacteriochlorophyll α mediating light-driven electron flows. Spheroidenone was found to be the major component of carotenoids. Also small amounts of 2, 2-diketospirilloxanthin and OH-spheroidenone were found. Since symmetrical ζ-carotene (together with phytoene and phytofluene) was accumulated in diphenylamine-inhibited cultures, these 3 keto carotenoids of the alternative spirilloxanthin-series are considered to be synthesized mainly via symmetrical ζ-carotene and not through asymmetrical ζ-carotene which is knownto be the intermediate in the biosynthesis of carotenoids in somespecies of non-sulfur purple bacteria. Onthe other hand, the major (or the sole) respiratory quinone of this strain was found to be ubiquinone-10.

著者

• Harashima Keiji

  Department Of Agricultural Chemistry Faculty Of Agriculture The University Of Tokyo

• NAKADA Hirohisa

  Department of Agricultural Chemistry, Faculty of Agriculture, The University of Tokyo

関連論文

• Photochemical Activities of Bacteriochlorophyll in Aerobically Grown Cells of Aerobic Heterotrophs, Erythrobacter Species (OCh 114) and Erythrobacter longus (OCh 101)
• Carotenoids and Ubiquinone in Aerobically Grown Cells of an Aerobic Photosynthetic Bacterium, Erythrobacter Species OCh 114
• Light-Stimultated Aerobic Growth of Erythrobacter Species Och 114
• O_2-stimulated synthesis of bacteriochlorophyll and carotenoids in marine bacteria

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