Chloroplast Cu/Zn-SOD is a highly sensitive site in cucumber leaves chilled in the light
Light-chilling stress, the combination of low-light illumination and low temperature, preferentially inactivated photosystem I (PSI) of cucumber (Cucumis sativus L.) leaves, resulting in the photoinhibition of photosynthesis. The extent of PSI photoinhibition, determined in vivo by monitoring absorption changes around 810 nm (induced by far-red light), was closely correlated with the redox state of the PSII electron acceptor QA, measured as the chlorophyll fluorescence parameter, 1-qP, where qP...[Show more]
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