| Cross Index | Rhodobacter |
| SuperSet | Prokaryote, Eubacteria Anoxygenic Phototrophic Bacteria |
| Compare | Purple Bacteria
Green Bacteria
Anaerobic chemotropic Erythrobacter longus, |
| Contrast | Oxygenic Phototrophic Bacteria Archaea |
| Subset |
| Morphology | Rhodobacter |
| CELLULAR |
| Staining | Gram-negative |
| Morphology | Cells are ovoid or rod-shaped, 0.5-1.2 um in diameter, and., may produce capsules and slime, and may form chains of cells.. |
| Motility | motile or nonmotile; motile forms have polar flagella |
| Specialized structures | Internal photosynthetic membranes are present as vesicles |
| Division |
| COLONIAL |
| Solid surface |
| Liquid |
| Growth Parameters | Rhodobacter |
| PHYSIOLOGICAL |
| Tropism | Photoautotrophic growth
is possible in the presence of sulfide as an electron
donor and, in some species, with thiosulfate and
molecular hydrogen. Growth occurs photo-heterotrophically under anaerobic conditions in the light with a great variety of organic compounds as carbon and electron sources. Most species perform an oxidative metabolism and grow as chemoheterotrophs at the full oxygen tension of air in the dark. |
| Oxygen | |
| pH | |
| Temperature | |
| Requirements | |
| Products | Photosynthetic pigments are bacteriochlorophyll a (esterified with phytol) and carotenoids of the spheroidene series |
| Enzymes | |
| Unique features |
| ENVIRONMENTAL |
| Habitat | |
| Lifestyle | |
| Pathogenicity |
| Distribution |
| Genome | Rhodobacter |
| G+C Mol % | 64.4-73.2 (Tm) |
| Reference | Rhodobacter |
| First citation | Imhoff, J. F., H.G. Truper and N.Pfennig. 1984. Rearrangement of the species and genera of the phototrophic "Purple nonsulfur bacteria" IJSB. 34:340-343 |
| The Prokaryotes | |
| Bergey's Systematatic | p 1668 J. F. Imhoff |
| Bergey's Determinative | p 358 |
| References |