Thiorhodospira

Thi' o.rho' do.spi' ra. Gr. n. thios sulfur; Gr. n. rhodon the rose; Gr. n. spira spiral; M.L. fem. n. Thiorhodospira the spiral rose with sulfur. Proteobacteria / Gammaproteobacteria / Chromatiales / Ectothiorhodospiraceae / Thiorhodospira Cells vibrioid or spiral-shaped, motile by means of a monopolar flagellar tuft, multiplies by binary fission. Gram-negative and belong to the Gammaproteobacteria. Internal photosynthetic membranes are parallel lamellae piercing the cytoplasm lengthwise or underlying the cytoplasmic membrane. Photosynthetic pigments are bacteriochlorophyll a and carotenoids. The mol% G + C of the DNA is: 56.0–57.4 (Tm ). Type species: Thiorhodospira sibirica Bryantseva, Gorlenko, Kompantseva, Imhoff, Süling and Mityushina 1999b, 700