[Relation of cyclic and noncyclic electron transport in Rhodospirillum rubrum chromatophores. I. Experimental study of the kinetic characteristics of dark reduction of P870 with different donor concentrations in the medium].
The kinetics of the dark recovery of photo-oxidized bacteriochlorophyll P870 was studied as a function of the intensity and duration of actinic light illumination at different concentrations of a donor in the medium. From the comparison of the experimental data with the results of mathematical modelling of the processes under investigation [1] it is concluded that electron transport is triggered for another pathway, whenever the concentration of the donor in the medium attains a certain critical level.
D015086:2,6-Dichloroindophenol; D020130:Bacterial Chromatophores / Q000378:metabolism*; D001429:Bacteriochlorophylls / Q000378:metabolism*; D002734:Chlorophyll / Q000031:analogs & derivatives*; D003624:Darkness; D004579:Electron Transport; D010084:Oxidation-Reduction; D012247:Rhodospirillum rubrum / Q000378:metabolism*; D013772:Tetramethylphenylenediamine
D001429:Bacteriochlorophylls; D002734:Chlorophyll; D015086:2,6-Dichloroindophenol; D013772:Tetramethylphenylenediamine
Sootnoshenie tsiklicheskogo i netsiklicheskogo élektronnogo transporta v khromatoforakh rhodospirillum rubrum. I. Eksperimental'noe issledovanie kineticheskikh kharakteristik temnovogo vosstanovleniia P870 pri razlichnykh kontzentratsiiakh donora v srede.