Bacteriochlorophyll

From Freepedia

Bacteriochlorophylls are photosynthetic pigments that occur in various bacteria. They are related to chlorophylls, which are the primary pigments in plants, algae, and cyanobacteria. Groups that contain bacteriochlorophyll conduct photosynthesis, but do not produce oxygen. Different groups contain different types of bacteriochlorophyll:

Bacteriochlorophyll a Purple bacteria
Bacteriochlorophyll b Purple bacteria
Bacteriochlorophyll c Green sulfur bacteria, Chloroflexi
Bacteriochlorophyll d Green sulfur bacteria
Bacteriochlorophyll e Green sulfur bacteria
Bacteriochlorophyll g Heliobacteria

Bacteriochlorophylls c and d are chlorins, with one reduced pyrrole ring, and the others are bacteriochlorins, with two.

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