EFFECT OF CHLORIDE AND BENZOATE ANIONS ON THE DELAYED LIGHT EMISSION IN DCMU-TREATED SPINACH CHLOROPLASTS |
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| Authors: | Ted Mar Guy Roy Govindjee |
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| Affiliation: | Biophysics Group, Department of Physics, University of Montreal, Montreal, Quebec, Canada;Department of Botany and Physiology and Biophysics, University of Illinois, Urbana III. 61801, U.S.A. |
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| Abstract: | Abstract —Chloride anions, when added to DCMU [3-(3,4-dichlorophenyl)-1,1-dimethylurea]-treated spinach chloroplasts, change the rate of decay of the delayed light emission in the seconds region but do not change the shape or the temperature dependence of the decay. Benzoate anions, on the other hand, change both the rate and the shape of the decay of the delayed light emission. These results are consistent with a model in which the membrane potential and the structure of the reaction center affect the decay kinetics of the delayed light emission in the seconds region. |
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