title: Accessory pigment fluorescence for quantitation of photosynthetic microbial populations.
abstract: The in vivo fluorescence of the primary accessory pigments in purple bacteria (carotenoids), green bacteria (bacteriochlorophyll), green algae (chlorophyll), and cyanobacteria (phycocyanin) was found to be a linear function of cell concentration over three of four orders of magnitude. The lowest cell concentrations detectable were 10(4) cells/ml for procaryotes and 10(3) cells/ml for eucaryotes.
mesh_terms: D001419:Bacteria / Q000032:analysis*; D001429:Bacteriochlorophylls / Q000032:analysis; D002338:Carotenoids / Q000032:analysis; D002452:Cell Count; D002734:Chlorophyll / Q000032:analysis; D000460:Chlorophyta / Q000032:analysis*; D000458:Cyanobacteria / Q000032:analysis*; D010788:Photosynthesis; D010798:Phycocyanin / Q000032:analysis; D013050:Spectrometry, Fluorescence / Q000379:methods
chemical_list: D001429:Bacteriochlorophylls; D010798:Phycocyanin; D002734:Chlorophyll; D002338:Carotenoids