title: A comparison of toxins isolated from the cyanobacteria Oscillatoria agardhii and Microcystis aeruginosa.
abstract: 1. A toxin isolated from a strain of Oscillatoria agardhii var. was compared to a peptide toxin isolated from Microcystis aeruginosa. 2. The Oscillatoria toxin possessed similar hepatotoxic properties on mice as the Microcystis toxin but had a higher LD50 than the latter; 320 micrograms/kg compared to 43 micrograms/kg (i.p. mouse), respectively. 3. Ultra-violet and infra-red spectra showed that the Oscillatoria toxin is a peptide which is not identical to the Microcystis toxin. 4. The spectra also indicated some structural similarities in these toxins.
mesh_terms: D000818:Animals; D002851:Chromatography, High Pressure Liquid; D000458:Cyanobacteria / Q000378:metabolism*; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D046931:Microcystis; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D014118:Toxins, Biological / Q000032:analysis / Q000633:toxicity*
chemical_list: D014118:Toxins, Biological