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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

Pyt'eva, N.F.; Chamorovskiĭ, S.K.; Rubin, A.B.

Biofizika 23(1): 48-52

1978

ISSN/ISBN: 0006-3029
PMID: 414786
Document Number: 131785
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.

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Pyt'eva, N.F.; Kononenko, A.A.; Ratyni, A.I.; Lukashev, E.P.; Rubin, A.B. 1976: Theoretical study of the kinetics of dark reduction of photochemically oxidized bacteriochlorophyll in the reaction center of Rhodospirillum rubrum chromatophores Biofizika 21(1): 118-123
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