@article{mbs:/content/journal/ijsem/10.1099/00207713-33-3-551, author = "AKIBA*, T. and USAMI, R. and HORIKOSHI, K.", title = "Rhodopseudomonas rutila, a New Species of Nonsulfur Purple Photosynthetic Bacteria", journal= "International Journal of Systematic and Evolutionary Microbiology", year = "1983", volume = "33", number = "3", pages = "551-556", doi = "https://doi.org/10.1099/00207713-33-3-551", url = "https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/00207713-33-3-551", publisher = "Microbiology Society", issn = "1466-5034", type = "Journal Article", abstract = "Strains R1T (type strain) and R2, two new isolates of nonsulfur purple photosynthetic bacteria, were studied. The cells of these organisms were gram-negative nonsporeforming rods that were motile by means of a single flagellum, and they multiplied by budding. The photosynthetic membrane systems of these strains were of the lamellar type parallel to the cytoplasmic membrane. Cells which formed under anaerobic conditions in the light were red. The cells of these strains contained bacteriochlorophyll a, ubiquinone 10, and carotenoids. No vitamins were required as growth factors, and reduced sulfur compounds could not be utilized by strains R1T and R2. These two strains produced molecular hydrogen anaerobically in the light. On the basis of this study, we propose a new species, Rhodopseudomonas rutila, for strains R1T and R2. The guanine-plus-cytosine contents of the deoxyribonucleic acids of strains R1T and R2 are 67.6 and 69.4 mol%, respectively. The type strain of this new species is strain R1 (= ATCC 33872).", }