Isochromatium

I' so.chro.ma' ti.um. Gr. adj. isos equal, similar; Chromatium a genus name; M.L. neut. n. Isochromatium the similar Chromatium, the bacterium similar to Chromatium. Proteobacteria / Gammaproteobacteria / Chromatiales / Chromatiaceae / Isochromatium Cells straight to slightly curved rods, multiply by binary fission, motile by a polar tuft of flagella. Gram negative, belong to the Gammaproteobacteria, and contain internal photosynthetic membranes of vesicular type with bacteriochlorophyll a and carotenoids as photosynthetic pigments. The mol% G + C of the DNA is: 62.2–62.8. Type species: Isochromatium buderi (Trüper and Jannasch 1968) Imhoff, Süling and Petri 1998b, 1141 (Chromatium buderi Trüper and Jannasch 1968, 364.