Abstract
As reported recently1,2, in aged chloroplasts of spinach the decay of the light-induced absorption decrease at 430 mµ becomes biphasic when the system is coupled with ascorbic acid and an appropriate amount of the redox dye phenazine methosulphate. It was further found that the slowly decaying portion becomes saturated at a lower actinic intensity and the rapidly decaying portion starts to appear only when the actinic intensity exceeds the threshold-level. The biphasic decay was attributed to the re-reduction of two separate photo-oxidized species, possibly the chlorophyll complex P700 and cytochrome f.
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Ke, B., Photosynthetic Mechanisms of Green Plants, Nat. Acad. Sci. — Nat. Res. Counc. Publ. 1145, Washington, D. C. (1963).
Ke, B., Biochim. Biophys. Acta (in the press).
Ke, B., Treharne, R. W., and McKibben, C., Rev. Sci. Iustrum., 35, 296 (1964).
Kok, B., Biochim. Biophys. Acta, 48, 527 (1961).
Witt, H. T., Müller, A., and Rumberg, R., Nature, 197, 987 (1963).
Ke, B., Biochim. Biophys. Acta (in the press).
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KE, B. Light-induced Absorption-change Transients in Some Blue-green Algae. Nature 203, 405 (1964). https://doi.org/10.1038/203405a0
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DOI: https://doi.org/10.1038/203405a0
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