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Rhodospirillum sulfurexigens sp. nov., a phototrophic alphaproteobacterium requiring a reduced sulfur source for growth
International Journal of Systematic and Evolutionary Microbiology
A Gram-negative, spiral-shaped, phototrophic, purple non-sulfur bacterial strain, JA143 T , was isolated from a freshwater habitat. Strain JA143 T was motile by means of bipolar tufts of flagella. Intracellular photosynthetic membranes are of the lamellar stacked type. Bacteriochlorophyll a and carotenoids of the spirilloxanthin series with rhodovibrin are present as photosynthetic pigments. Thiamine and a reduced sulfur source are required for growth. Phylogenetic analysis on the basis of 16Sdoi:10.1099/ijs.0.65689-0 pmid:19060082 fatcat:qltkyarhb5gxbmg7ffnwvjb2cu