Phototrophs

The Chloroflexi are a group of bacteria that produce energy through photosynthesis. They make up the bulk of the green non- sulfur bacteria, though some are classified separately as the Thermomicrobia. They are named for their green pigment, usually found in photosynthetic bodies called chlorosomes. ...more on Wikipedia about "Chloroflexi"

Cyanobacteria ( Greek: cyanos = blue) are a phylum of bacteria that obtain their energy through photosynthesis. They are often referred to as blue-green algae, even though it is now known that they are not directly related to any of the other algal groups, which are all eukaryotes. Nonetheless, the description is still sometimes used to reflect their appearance and ecological role. Fossil traces of cyanobacteria are claimed to have been found from around 3.8 billion years ago, but recent evidence has sparked controversy over this assertion. See: Stromatolite ...more on Wikipedia about "Cyanobacteria"

The green sulfur bacteria (Chlorobiaceae) are a family of phototrophic bacteria. No other bacterial families are known to be closely related to them, and they are accordingly placed in their own phylum (Chlorobi). The phylum is most closely related to Bacteroidetes. ...more on Wikipedia about "Green sulfur bacteria"

: Note: The word "halobacteria" is also the plural form of the word " halobacterium". ...more on Wikipedia about "Halobacteria"

: Note: The word "halobacterium" is also the singular form of the word "halobacteria". ...more on Wikipedia about "Halobacterium"

The heliobacteria are a small family of bacteria that produce energy through photosynthesis. The primary pigment involved is bacteriochlorophyll g, which is unique to the group and absorbs at different frequencies than other photosynthetic pigments, giving the heliobacteria their own environmental niche. Photosynthesis takes place at the cell membrane, which does not form folds or compartments as it does in many other groups. ...more on Wikipedia about "Heliobacteria"

Phototrophs or photoautotrophs are photosynthetic algae, fungi, bacteria and cyanobacteria which build up carbon dioxide and water into organic cell materials using energy from sunlight. One product of this process is starch, which is a storage or reserve form of carbon, which can be used when light conditions are too poor to satisfy the immediate needs of the organism. Photosynthetic bacteria have a substance called bacteriochlorophyll, live in lakes and pools, and use the hydrogen from hydrogen sulfide instead of from water, for the chemical process. (The bacteriochlorophyll pigment absorbs light in the extreme UV and infra-red parts of the spectrum which is outside the range used by normal chlorophyll). Purple and green sulfur bacteria use light, carbon dioxide and hydrogen sulfide from anaerobic decay, to produce carbohydrate, sulfur and water. Cyanobacteria live in fresh water, seas, ...more on Wikipedia about "Phototroph"

Purple bacteria are proteobacteria that are phototrophic, i.e. capable of produce energy through photosynthesis. They are pigmented with bacteriochlorophyll a or b, together with various carotenoids. These give them colours ranging between purple, red, brown, and orange. Photosynthesis takes place at reaction centres on the cell membrane, which is folded into the cell to form sacs, tubes, or sheets, increasing the available surface area. ...more on Wikipedia about "Purple bacteria"

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