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Rhodopseudomonas sulfidophila : ウィキペディア英語版 | Rhodopseudomonas sulfidophila
''Rhodopseudomonas sulfidophila'' is a purple bacteria.〔Hansen, ToA, and H. Veldkamp. "Rhodopseudomonas sulfidophila, nov. spec., a new species of the purple nonsulfur bacteria." Archiv für Mikrobiologie 92.1 (1973): 45-58.〕 The cells are rod-shaped, 0.6 to 0.9 μ wide and 0.9 to 2.0 μ long, and motile by means of polar flagella. Cell division occurs by binary fission. Its pigments consist of bacteriochlorophyll a and of carotenoids, most probably of the spheroidene group. The new species needs 2.5% (w/v) sodium chloride for optimal growth. The bacteria has a high sulfide tolerance. Sulfide and thiosulfate are oxidized to sulfate without an intermediate accumulation of elemental sulfur. It can either grow photoautotrophically or photoheterotrophically. ==References==
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