Differential temperature effects on dissipation of excess light energy and energy partitioning in lut2 mutant of Arabidopsis thaliana under photoinhibitory conditions

2018 ◽  
Vol 139 (1-3) ◽  
pp. 367-385 ◽  
Author(s):  
Antoaneta V. Popova ◽  
Konstantin Dobrev ◽  
Maya Velitchkova ◽  
Alexander G. Ivanov
Keyword(s):  
Arabidopsis Thaliana ◽  
Temperature Effects ◽  
Energy Partitioning ◽  
Light Energy ◽  
Excess Light

Different strategies of acclimation of photosynthesis, electron transport and antioxidative activity in leaves of two cotton species to water deficit

2016 ◽  
Vol 43 (5) ◽  
pp. 448 ◽  
Author(s):  
Xiao-Ping Yi ◽  
Ya-Li Zhang ◽  
He-Sheng Yao ◽  
Hong-Hai Luo ◽  
Ling Gou ◽  
...  
Keyword(s):  
Electron Transport ◽  
Water Deficit ◽  
Heat Dissipation ◽  
Photosynthetic Apparatus ◽  
Light Energy ◽  
Photochemical Quenching ◽  
Antioxidant Systems ◽  
Mehler Reaction ◽  
Cotton Species ◽  
Excess Light

To better understand the adaptation mechanisms of the photosynthetic apparatus of cotton plants to water deficit conditions, the influence of water deficit on photosynthesis, chlorophyll a fluorescence and the activities of antioxidant systems were determined simultaneously in Gossypium hirsutum L. cv. Xinluzao 45 (upland cotton) and Gossypium barbadense L. cv. Xinhai 21 (pima cotton). Water deficit decreased photosynthesis in both cotton species, but did not decrease chlorophyll content or induce any sustained photoinhibition in either cotton species. Water deficit increased ETR/4 − AG, where ETR/4 estimates the linear photosynthetic electron flux and AG is the gross rate of carbon assimilation. The increase in ETR/4 − AG, which represents an increase in photorespiration and alternative electron fluxes, was particularly pronounced in Xinluzao 45. In Xinluzao 45, water deficit increased the activities of antioxidative enzymes, as well as the contents of reactive oxygen species (ROS), which are related to the Mehler reaction. In contrast, moderate water deficit particularly increased non-photochemical quenching (NPQ) in Xinhai 21. Our results suggest that Xinluzao 45 relied on enhanced electron transport such as photorespiration and the Mehler reaction to dissipate excess light energy under mild and moderate water deficit. Xinhai 21 used enhanced photorespiration for light energy utilisation under mild water deficit but, when subjected to moderate water deficit, possessed a high capacity for dissipating excess light energy via heat dissipation.

Responses of the photosynthetic electron transport system to excess light energy caused by water deficit in wild watermelon

2011 ◽  
Vol 142 (3) ◽  
pp. 247-264 ◽  
Author(s):  
Satoko Sanda ◽  
Kazuo Yoshida ◽  
Masayoshi Kuwano ◽  
Tadayuki Kawamura ◽  
Yuri Nakajima Munekage ◽  
...  
Keyword(s):  
Electron Transport ◽  
Water Deficit ◽  
Transport System ◽  
Photosynthetic Electron Transport ◽  
Light Energy ◽  
Electron Transport System ◽  
Excess Light

Psb27, a photosystem II assembly protein, enables quenching of excess light energy during its participation in the PSII lifecycle

2022 ◽  
Author(s):  
Virginia M. Johnson ◽  
Sandeep Biswas ◽  
Johnna L. Roose ◽  
Himadri B. Pakrasi ◽  
Haijun Liu
Keyword(s):  
Photosystem Ii ◽  
Light Energy ◽  
Excess Light

Light energy partitioning in photosystems I and II during development of Nothofagus nitida growing under different light environments in the Chilean evergreen temperate rain forest

Trees ◽  
2009 ◽  
Vol 24 (2) ◽  
pp. 247-259 ◽  
Author(s):  
Rafael E. Coopman ◽  
Fernanda P. Fuentes-Neira ◽  
Verónica F. Briceño ◽  
Hernán M. Cabrera ◽  
Luis J. Corcuera ◽  
...  
Keyword(s):  
Rain Forest ◽  
Energy Partitioning ◽  
Light Energy ◽  
Photosystems I And Ii ◽  
Temperate Rain Forest

The Excess Light Energy that is neither Utilized in Photosynthesis nor Dissipated by Photoprotective Mechanisms Determines the Rate of Photoinactivation in Photosystem II

2003 ◽  
Vol 44 (3) ◽  
pp. 318-325 ◽  
Author(s):  
Masaharu C. Kato ◽  
Kouki Hikosaka ◽  
Naoki Hirotsu ◽  
Amane Makino ◽  
Tadaki Hirose
Keyword(s):  
Photosystem Ii ◽  
Light Energy ◽  
Excess Light

scholarly journals Zeaxanthin and the Heat Dissipation of Excess Light Energy in Nerium oleander Exposed to a Combination of High Light and Water Stress

1988 ◽  
Vol 87 (1) ◽  
pp. 17-24 ◽  
Author(s):  
Barbara Demmig ◽  
Klaus Winter ◽  
Almuth Krüger ◽  
Franz-Christian Czygan
Keyword(s):  
Water Stress ◽  
Heat Dissipation ◽  
High Light ◽  
Light Energy ◽  
Nerium Oleander ◽  
Excess Light

scholarly journals Arabitol Provided by Lichenous Fungi Enhances Ability to Dissipate Excess Light Energy in a Symbiotic Green Alga under Desiccation

2013 ◽  
Vol 54 (8) ◽  
pp. 1316-1325 ◽  
Author(s):  
Makiko Kosugi ◽  
Hirohisa Miyake ◽  
Hisanori Yamakawa ◽  
Yutaka Shibata ◽  
Atsuo Miyazawa ◽  
...  
Keyword(s):  
Green Alga ◽  
Light Energy ◽  
Excess Light
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