marichromatium fluminis sp. nov., a slightly alkaliphilic, phototrophic gammaproteobacterium isolated from river sediment. | an anoxygenic, phototrophic gammaproteobacterium designated strain ja418(t) was isolated from a sediment sample collected from the baitarani river, orissa, india. the bacterium was a gram-negative, motile rod with a single polar flagellum. bacteriochlorophyll a and rhodopin were the major photosynthetic pigments. the organism grew best at slightly alkaline ph (8-8.5) and lacked chemotrophic growth. the major fatty acids were c(16 : 0), c(16 : 1)omega7c/c(16 : 1)omega6c and c(18 : 1)omega7c. a ph ... | 2010 | 19666807 |