Non-electrogenic charge recombination in Photosystem II as a source of sub-millisecond luminescence

1984 ◽  
Vol 765 (3) ◽  
pp. 295-300 ◽  
Author(s):  
R.F. Meiburg ◽  
H.J. Van Gorkom ◽  
R.J. Van Dorssen
Keyword(s):  
Photosystem Ii ◽  
Charge Recombination

Charge Recombination and Proton Transfer in Manganese-Depleted Photosystem II†

Biochemistry ◽  
1997 ◽  
Vol 36 (49) ◽  
pp. 15294-15302 ◽  
Author(s):  
Fabrice Rappaport ◽  
Jérôme Lavergne
Keyword(s):  
Photosystem Ii ◽  
Proton Transfer ◽  
Charge Recombination

Thermodynamics of the charge recombination in photosystem II

1986 ◽  
pp. 53-60
Author(s):  
H. J. Van Gorkom ◽  
R. F. Meiburg ◽  
L. J. De Vos
Keyword(s):  
Photosystem Ii ◽  
Charge Recombination

Photoinactivation of Photosystem II and Degradation of the D1 Protein are Reduced in a Cytochrome b6/f -Less Mutant of Chlamydomonas reinhardtii

1990 ◽  
Vol 45 (5) ◽  
pp. 395-401 ◽  
Author(s):  
Susana Shochat ◽  
Noam Adir ◽  
Alma Gal ◽  
Yorinao Inoue ◽  
Laurence Mets ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Chlamydomonas Reinhardtii ◽  
Reaction Center ◽  
Electron Flow ◽  
D1 Protein ◽  
Charge Recombination ◽  
Cyt B ◽  
Variable Fluorescence ◽  
Cytochrome B6 ◽  
Mutant Cells

Abstract The effect of unoccupancy of the QB site by plastoquinone on the photoinactivation of reaction center II in a Cyt b6/f-less mutant of Chlamydomonas reinhardtii, B6, was investigated. In these cells the oxidation of plastoquinol generated by electron flow via RC II to plastoquinone and thus the turnover of PQH2/PQ via the QB site are drastically reduced. Reaction center II of the mutant cells was resistant to photoinactivation relative to the control cells as demonstrated by measurements of light-induced destabilization of S2-QB charge recombination, rise in in­ trinsic fluorescence and loss of variable fluorescence. These parameters relate to functions in­ volving the reaction center II D1 protein. The light-induced degradation of D1 in the mutant cells was also considerably reduced, with a t 1/2 value of 7 h as compared, under similar conditions, to about 1.5 h for the control cells. These results indicate that the photoinactivation of RC II and turnover of the D1 protein are related and require occupancy of the QB site by PQ and its light-driven reduction.

EPR study of charge recombination via D+ in the S2 state of oxygen evolving Photosystem II

1989 ◽  
Vol 973 (2) ◽  
pp. 147-152 ◽  
Author(s):  
Takashi Inui ◽  
Asako Kawamori ◽  
Gohki Kuroda ◽  
Taka-aki Ono ◽  
Yorinao Inoue
Keyword(s):  
Photosystem Ii ◽  
Charge Recombination ◽  
S2 State ◽  
Oxygen Evolving
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