Query: NC_011884:1998559 Cyanothece sp. PCC 7425, complete genome
Lineage: Cyanothece; Cyanothece; ; Chroococcales; Cyanobacteria; Bacteria
General Information: Cyanothece sp. PCC 7425 was isolated from a rice field in Senegal. Unlike some other Cyanothece strains, Cyanothece 7425 appears to be an obligate autotroph. Cyanothece may prove very important in biological hydrogen production, as it is missing the uptake hydrogenase enzyme.
Subject: NC_009931:117904 Acaryochloris marina MBIC11017 plasmid pREB6, complete sequence
Lineage: Acaryochloris marina; Acaryochloris; ; Chroococcales; Cyanobacteria; Bacteria
General Information: Acaryochloris marina MBIC11017 was isolated from algae from the coast of the Palau Islands in the western Pacific. Marine cyanobacterium. Acaryochloris marina was first isolated as an epiphyte of algae. M. marina been isolated from a variety of habitats and locations, usually associated with algae but also as free-living organisms. This cyanobacterium produces an atypical photosynthetic pigment, chlorophyll d, as the major reactive agent. The oxygenic photosynthesis based on this pigment may have evolved as an acclimatization to far-red light environments, or an as intermediate between the red-absorbing oxygenic and the far-red-absorbing anoxygenic photosynthesis that uses bacteriochlorophylls. Because of the unusual ratio of chlorophyll a to chlorophyll d in this organism, it has been used as a model to study the spectrographic characteristics of the two pigments.