RT Journal Article SR Electronic(1) A1 URAKAMI, TEIZI A1 ARAKI, HISAYA A1 KOMAGATA, KAZUOYR 1995 T1 Characteristics of Newly Isolated Xanthobacter Strains and Fatty Acid Compositions and Quinone Systems in Yellow-Pigmented Hydrogen-Oxidizing Bacteria JF International Journal of Systematic and Evolutionary Microbiology, VO 45 IS 4 SP 863 OP 867 DO https://doi.org/10.1099/00207713-45-4-863 PB Microbiology Society, SN 1466-5034, AB Newly isolated Xanthobacter strains were characterized. In addition, the fatty acid compositions and quinone systems of gram-negative, yellow-pigmented, hydrogen-oxidizing bacteria belonging to the genera Xanthobacter, Hydrogenophaga, and Variovorax and related species were studied. Xanthobacter strains are nitrogen-fixing organisms that have a Q-10 ubiquinone system; the cellular fatty acids of these organisms include high levels of C18:1 acid, and their hydroxy fatty acids include high levels of 3-OH C16:0 acid. Hydrogenophaga strains are polarly flagellated organisms that have a Q-8 ubiquinone system. These bacteria can be divided into two groups on the basis of cellular fatty acid and hydroxy fatty acid compositions. Variovorax strains are peritrichously flagellated, non-nitrogen-fixing organisms that have a Q-8 ubiquinone system; the cellular fatty acids of these strains include high levels of C16:0, C16:1 and C18:1 acids, and their hydroxy fatty acids include 3-OH C10:0 and 2-OH C14:0 acids. Xanthobacter, Hydrogenophaga, and Variovorax strains can be clearly distinguished from each other on the basis of their quinone systems and cellular fatty acid compositions., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/00207713-45-4-863