Query: NC_013161:1023716 Cyanothece sp. PCC 8802, complete genome Lineage: Cyanothece; Cyanothece; ; Chroococcales; Cyanobacteria; Bacteria General Information: Isolation: Rice fields in southern Taiwan; Country: Taiwan; Temp: Mesophile; Habitat: Fresh water. Cyanothece 8802, like many cyanobacterial strains, can grow as an autotroph with CO(2) as carbon source. However, its optimum growth in the laboratory requires addition of an inorganic carbon source such as bicarbonate. Like many other Cyanothece species it fixes not only CO(2) but also N(2).
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General Information: This strain is a freshwater organism and is extensively studied due to its circadian clock which controls the expression of upwards of 800 genes during a 24 hour period. These unicellular cyanobacteria are also known as blue green algae and along with Prochlorococcus are responsible for a large part of the carbon fixation that occurs in marine environments. Synechococcus have a broader distribution in the ocean and are less abundant in oligotrophic (low nutrient) regions. These organism utilize photosystem I and II to capture light energy. They are highly adapted to marine environments and some strains have evolved unique motility systems in order to propel themselves towards areas that contain nitrogenous compounds. An obligate photoautotroph, it has been studied extensively by an international research community with respect to acquisition of organic carbon, transport and regulation of nitrogen compounds, adaptation to nutrient stresses, and reponse to light intensity.