What is Green sulfur bacteria?
{{Taxobox | name = Green sulfur bacteria | image = Green d winogradsky.jpg | image_width = 200px | image_caption = Green sulfur bacteria in a [[Winogradsky column]] | domain = [[Bacteria]] | phylum = '''Chlorobiota''' | class = '''Chlorobia''' | ordo = '''Chlorobiales''' | familia = '''Chlorobiaceae''' }} The '''green sulfur bacteria''' are a [[phylum]] of [[anaerobic organism|obligately anaerobic]] [[photoautotrophic]] [[bacteria]]. They metabolize (~eat) sulfur. They are put in their own [[phylum]]. They are most closely related to the [[Bacteroidetes]]. Most green sulfur bacteria are [[Mesophile|mesophilic]]. They prefer moderate temperatures, and all of them live in water. They are typical of the bacteria which evolved on the early [[Earth]]: they live in [[anaerobic]] conditions. They are usually found in the top millimeters of sediment, where there is reduced sulfur. They are capable of [[photosynthesis]] in low light conditions. The [[Black Sea]], an extremely [[Anoxia|anoxic]] environment, has a large population of green sulfur bacteria at about 100m depth. The light is poor in this region of the sea: here bacteria get most of their energy from chemical reactions. They need very little energy for cellular maintenance.<ref>{{cite journal |vauthors=Marschall E, Jogler M, Hessge U, Overmann J |date=May 2010 |title=Large-scale distribution and activity patterns of an extremely low-light-adapted population of green sulfur bacteria in the Black Sea.|journal=Environmental Microbiology |volume=12 |issue=5 |pages=1348–62 |doi=10.1111/j.1462-2920.2010.02178.x |pmid=20236170}}</ref> == References == {{reflist}} {{-}} {{biology-stub}} [[category:Gram-negative bacteria]]