Low potential titration of the fluorescence yield changes in photosynthetic bacteria.
D002844:Chromatium / Q000032:analysis*; D005453:Fluorescence; D006863:Hydrogen-Ion Concentration; D008027:Light; D010084:Oxidation-Reduction; D010788:Photosynthesis; D012246:Rhodospirillum / Q000032:analysis* / Q000378:metabolism