Abstract:Effects of inhibitors and cofactors of cyclic and noncyclic electron transport on nonphotochemical quenching of chlorophyll fluorescence induced by action potential (AP) was investigated in Chara corallina cells. Under control conditions, energy-dependent quenching (q E ) develops upon the increase in photosynthetically active radiation (PAR); it also arises and reversibly disappears after AP generation at moderate irradiances. The treatment of cells with diuron (DCMU) completely eliminated q E established at … Show more
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