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Operation of dual mechanisms that both lead to photoinactivation of Photosystem II in leaves by visible light

Oguchi, Riichi; Terashima, Ichiro; Kou, Jiancun; Chow, Wah Soon


Photosystem II (PS II) is photoinactivated during photosynthesis, requiring repair to maintain full function during the day. What is the mechanism(s) of the initial events that lead to photoinactivation of PS II? Two hypotheses have been put forward. The ‘excess-energy hypothesis' states that excess energy absorbed by chlorophyll (Chl), neither utilized in photosynthesis nor dissipated harmlessly in non-photochemical quenching, leads to PS II photoinactivation; the ‘Mn hypothesis' (also termed...[Show more]

CollectionsANU Research Publications
Date published: 2011-05
Type: Journal article
Source: Physiologia Plantarum 142.1 (2011): 47-55
DOI: 10.1111/j.1399-3054.2011.01452.x


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