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Inhibition of Photosystems I and II and Enhanced Back Flow of Photosystem I Electrons in Cucumber Leaf Discs Chilled in the Light

Kim, Sung-I; Lee, Chee; Hope, A; Chow, Wah S (Fred)


Pre-illumination of cucumber leaf discs at a chilling temperature in low-irradiance white light resulted in accelerated re-reduction of P700+ [the special Chi pair in the photosystem I (PSI) reaction centre] when the far-red measuring light was turned off. Measurements (in ± methyl viologen or ± DCMU conditions) of the re-reduction half time suggest that accelerated re-reduction of P700+ appeared to be predominantly due to charge recombination and only partly due to reductants sustained by...[Show more]

CollectionsANU Research Publications
Date published: 2001
Type: Journal article
Source: Plant and Cell Physiology


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