Open AccessEffects of Aluminum on Light Energy Utilization and Photoprotective Systems in Citrus Leaves
Author(s) -
LiSong Chen,
Yi-Ping Qi,
Xinghui Liu
Publication year - 2005
Publication title -
annals of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.567
H-Index - 176
eISSN - 1095-8290
pISSN - 0305-7364
DOI - 10.1093/aob/mci145
Subject(s) - glutathione reductase , violaxanthin , antheraxanthin , xanthophyll , antioxidant , biology , photoprotection , chlorophyll fluorescence , botany , horticulture , superoxide dismutase , zeaxanthin , glutathione , photosynthesis , chlorophyll , biochemistry , carotenoid , lutein , glutathione peroxidase , enzyme
Under high photon flux, excitation energy may be in excess in aluminum (Al)-treated leaves, which use a smaller fraction of the absorbed light in electron transport due to decreased CO2 assimilation compared with normal leaves. The objectives of this study were to test the hypothesis that the antioxidant systems are up-regulated in Al-treated citrus leaves and correlate with protection from photoxidative damage, and to test whether xanthophyll cycle-dependent thermal energy dissipation is involved in dissipating excess excitation energy. *
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom