title: [Light-induced production and consumption of oxygen by chloroplasts: activation and inhibition].
abstract: Light-induced production and consumption of oxygen by pea chloroplasts are activated at certain concentrations of the solvents (diethyl ester, methyl alcohol, dimethylsulfoxide) and detergent Triton X-100. At higher concentrations of the compounds studied both reactions are inhibited. The uncouplers (methylamine and carbonyl cyanide-3-chlorophenylhydrazone) activate these processes. The agents studied have a similar effect on the processes of light-induced production and consumption of oxygen, which are limited by a common link bound to the phosphorylation site in photosystem I. The effects observed suggest that the inhibition may be due to inhibition of photosystem II, whereas the activation may be largely due to an action on photosystem I.
mesh_terms: D002258:Carbonyl Cyanide m-Chlorophenyl Hydrazone / Q000494:pharmacology; D002736:Chloroplasts / Q000187:drug effects / Q000378:metabolism* / Q000528:radiation effects; D004121:Dimethyl Sulfoxide / Q000494:pharmacology; D004986:Ether / Q000494:pharmacology; D008027:Light; D000432:Methanol / Q000494:pharmacology; D008744:Methylamines / Q000494:pharmacology; D010085:Oxidative Phosphorylation; D010100:Oxygen / Q000378:metabolism*; D010788:Photosynthesis / Q000187:drug effects; D010944:Plants / Q000378:metabolism*; D011092:Polyethylene Glycols / Q000494:pharmacology
chemical_list: D008744:Methylamines; D004986:Ether; D011092:Polyethylene Glycols; D002258:Carbonyl Cyanide m-Chlorophenyl Hydrazone; D010100:Oxygen; D000432:Methanol; D004121:Dimethyl Sulfoxide
vernacular_title: Vzaimosviaz' fotovydeleniia i fotopogloshcheniia kisloroda khloroplastami: Aktivatsiia i ingibirovanie.