Purple Phototrophic Bacteria Flashcards
Give 4 examples of purple phototrophic bacteria.
Chromatium, ectothiorhodospira, rhodobacter, rhodospirillum
What kind of photosynthesis do purple phototrophic bacteria have?
Anoxygenic photosynthesis
What do purple phototrophic bacteria contain that is somewhat unique to them?
Bacteriochlorophylls and carotenoid pigments
Describe the photosynthetic system of purple phototrophic bacteria.
They have intracytoplasmic photosynthetic membrane systems.
What do purple sulfur bacteria do with H2S?
They use H2S as an electron donor for CO2 reduction, which is oxidized to S0
What are purple nonsulfur bacteria?
Its a group of purple phototrophic bacteria that were once thought not to use H2S as a donor.
What do purple nonsulfur bacteria use as an electron donor?
Hydrogen, although some may use other compounds in small amounts
