User:Boazt89/Chlorobium aggregatum

Chlorobium chlorochromatii, originally known as Chlorobium aggregatum, is a symbiotic green sulfur bacteria that performs anoxygenic photosythesis; it is an obligate photoautotroph, using reduced sulfur species as electron donors. Chlorobium chlorochromatii can be found in stratified freshwater lakes.

Topic Morphology
C. chlorochromatii is a Gram-negative, non-motile bacillus, that exists in short chains. It is green in color and has a ring of chlorosomes around the inside of its cell wall. Chlorosomes contain the light harvesting pigment bacteriochlorophyll c.

Ecology
Photosynthetic green sulfur bacteria such as Chlorobium chlorochromatii reside in freshwater, stratified lakes beneath the micro-aerophilic algal layer in anaerobic, light-exposed environments. They have been found worldwide, mostly in holomictic or meromictic stratified lakes. Lakes that support this environment have been found in Germany, Tasmania, the USA, ice-covered lakes in Antarctica, Israel and Japan. Chlorobium chlorochromatii prefer environments with low temperature and low sulfur concentrations.

Metabolism
C. chlorochromatii conducts anoxygenic photosynthesis for it's electron source and uses reduced forms of sulfur, like SH2 as it's electron donor. It grows under strict anaerobic environments as a photolithoautotroph. (Wiley 2004)