[Activation and inhibition of photoinduced proton absorption in Rhodospirillum rubrum chromatophores by detergents and solvents].
The effects of detergents (Triton X-100) and solvents (diethyl ether, metanol) on the reversible light-induced proton uptake, photophosphorylation and band shift of the carotenoid in chromatophores from R. rubrum are described. All these compounds were found to stimulate the extent of light-induced proton uptake with subsequent inhibition when the concentrations were increased. Stimulation of proton uptake is accompanied by inhibition of both phosphorylation and carotenoid absorbance shift.
D020130:Bacterial Chromatophores / Q000187:drug effects*; D002338:Carotenoids / Q000528:radiation effects; D004986:Ether / Q000494:pharmacology*; D005019:Ethyl Ethers / Q000494:pharmacology*; D006863:Hydrogen-Ion Concentration; D008027:Light; D000432:Methanol / Q000494:pharmacology*; D010785:Photophosphorylation / Q000187:drug effects; D011092:Polyethylene Glycols / Q000494:pharmacology; D011522:Protons; D012247:Rhodospirillum rubrum / Q000187:drug effects*
D005019:Ethyl Ethers; D011522:Protons; D004986:Ether; D002338:Carotenoids; D011092:Polyethylene Glycols; D000432:Methanol
Aktivatsiia i ingibirovanie fotoindutsirovannogo pogloshcheniia protonov v khromatoforakh Rhodospirillum rubrum detergentami i rastvoriteliami.