Effect of Some Artificial Electron Donors and Acceptors on the Functioning of the Photosynthetic Oxygen Evolving System
نویسندگان
چکیده
Use of isolated pea chloroplasts and excitation with short saturating flashes showed that after addition of the reducing (ascorbate+DCPIP) couple the deactivation rate of S2and S3 oxidised states decreased while in the presence of PBQ a significant increase was observed. The effect of these two reagent types on Si states distribution and on the values of “misses” and “double hits” parameters are also presented. The observed increase of “misses” in the presence of (ascorbate+DCPIP) and a decrease in the presence of PBQ are discussed in relation with changes in the deactivation rate constants of the different Si states.
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