Light-induced redistribution of excitation energy in leaves as observed in terms of fluorescence induction

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概要

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• Intact leaves of Phaseolus vulgaris were illuminated with strong blue light to induce a transition of pigment states from a high fluorescent state (State I) to a low fluorescent state (State II), and their fluorescence induction curves were measured at room temperature and low temperature. The induction curves at -196℃ were measured at 692 and 730 nm in order to investigate the states of Photosystem II and Photosystem I separately. At 692 nm, the leaves in State II showed one level of fluorescence without any variation, F_s, which was approximately the same as the initial F_o level in State I. At 730 nm, however, the F_s level was rather close to the maximal F_M level in State I. These results are discussed according to the model of photochemical apparatus of photosynthesis proposed previously and interpreted that the excitation energy is transferred directly from the reaction centers of Photosystem II to Photosystem I.

• 日本植物生理学会の論文

著者

• Kitajima Masao

  Central Research Laboratories Fuji Photo Film Co. Ltd.

関連論文

• Light-induced redistribution of excitation energy in leaves as observed in terms of fluorescence induction
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