Query: NC_008639:2786447 Chlorobium phaeobacteroides DSM 266, complete genome Lineage: Chlorobium phaeobacteroides; Chlorobium; Chlorobiaceae; Chlorobiales; Chlorobi; Bacteria General Information: Chlorobium phaeobacteroides strain DSM 266 was isolated from a lake in Norway. This species contains several carotenoids, predominated by isorenieratene and beta-isorenieratene. These are necessary for light harvesting and photoprotection, which are important functions in photosynthesis. This species demonstrates a novel type of carotenoid-mediated photoadaptation induced by the change of theta-end and beta-end carotenoid groups, under various light intensities.
- Sequence; - BLASTN hit (Low score = Light, High score = Dark) - hypothetical protein; - cds: hover for description
General Information: This green-sulfur bacterium is a thermophile and was isolated from a New Zealand high-sulfide hot spring. Photosynthetic thermophile. Chlorobium tepidum is a member of the green-sulfur bacteria. It has been suggested that the green-sulfur bacteria were among the first photosynthetic organisms since they are anaerobically photosynthetic and may have arisen early in the Earth's history when there was a limited amount of oxygen present. This organism utilizes a novel photosynthetic system, and harvests light energy using an unusual organelle, the chlorosome, which contains an aggregate of light-harvesting centers surrounded by a protein-stabilized galactolipid monolayer that lies at the inner surface of the cytoplasmic membrane. Unlike many other photosynthetic organisms, the green-sulfur bacteria do not produce oxygen and tolerate only low levels of the molecule. This organism also fixes carbon dioxide via a reverse tricarboxylic acid cycle, using electrons derived from hydrogen or reduced sulfur to drive the reaction, instead of via the Calvin cycle like many other photosynthetic organisms.