Jannaschia sp. CCS1

Jannaschia sp. strain CCS1 is a member of the Roseobacter lineage (alpha-Proteobacteria), an ecologically relevant taxon of marine bacteria abundant in coastal and open ocean surface waters. CCS1 is an aerobic anoxygenic phototroph (AAnP), that is, it is incapable of anaerobic photosynthesis, and performs efficient photoinduced electron transfer only under aerobic conditions. However it still uses bacteriochlorophyll a to harvest energy from light without oxygen formation. AAnPs have recently been found in ocean surface waters, where they make up a significant fraction of the marine bacterioplankton community, are responsible for a share of the oceanic photosynthetic electron transport flux, and have important implications for the ocean carbon cycle. Jannaschia CCS1 was isolated from Pacific coastal waters on low-nutrient seawater medium. It is motile, grows slowly, and like other marine AAnPs, produces bacteriochlorophyll a when grown in the dark. (EBI Integr8)