abstract:Photoinhibition is light-induced reduction in the photosynthetic capacity of a plant, alga, or cyanobacterium. Photosystem II (PSII) is more sensitive to light than the rest of the photosynthetic machinery, and most researchers define the term as light-induced damage to PSII.
The fluorescence of dominantspeciesleaves is decreasing at noonshows thatefficiencyoflight energyconversion at noon is decreasing and further toexplainphotoinhibition.