The use of spectrophotometry in an ecological investigation of the facultatively anaerobic purple photosynthetic bacteria.
D004463:Ecology; D012241:Rhodopseudomonas / Q000302:isolation & purification*; D012246:Rhodospirillum / Q000302:isolation & purification*; D012988:Soil Microbiology; D013053:Spectrophotometry; D014871:Water Microbiology