purple sulfur bacteria


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purple sulfur bacteria

[′pər·pəl ′səl·fər bak‚tir·ē·ə]
(microbiology)
Any of various anaerobic photosynthetic purple bacteria, especially in the family Thiorhodaceae, that utilize H2 S and other inorganic sulfur compounds as a source of hydrogen, while the carbon source can be carbon monoxide.
References in periodicals archive ?
purple sulfur bacteria and green nonsulfur bacteria) and chemolithotrophic sulfide-oxidizing bacteria can be affected by the amount of light that reaches the chemocline (Jorgensen and Des Marais, 1986).
Competition for sulfide among colorless and purple sulfur bacteria in cyanobacterial mats.
Also, some photosynthetic populations, particularly purple sulfur bacteria, have been observed to migrate.