Title: Photoprotection of abscisic acid against the photoinhibition in rice seedling leaves
Abstract: Photoinhibition was studied in leaves of abscisic acid(ABA)-treated rice seedlings. ABA inhibited the photosynthetic process by lower PSII photochemistry efficiency(Fv/Fm)and coefficient for non-photochemical quenching(qN). After photoinhibition under light intensity of 2 000 μmolm -2s -1 for 1 h,the extent of photoinhibition was smaller in ABA-treated rice leaves than in the control. It is suggested that ABA had a protective effect on the high light induced photoinhibition. And the results also indicated photoprotection capacity of the rice seedlings against high light photoinhibition was closely associated with xanthophyll cycle.
Publication Year: 2002
Publication Date: 2002-01-01
Language: en
Type: article
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