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Spring Ephemerals Adapt to Extremely High Light Conditions via an Unusual Stabilization of Photosystem II

文献类型：期刊论文

作者Tu, Wenfeng; Li, Yang; Liu, Wu; Wu, Lishuan; Xie, Xiaoyan; Zhang, Yuanming1; Wilhelm, Christian2; Yang, Chunhong
刊名FRONTIERS IN PLANT SCIENCE
出版日期2016
卷号6
关键词D1 protein turnover electron transport light stress photoinhibition photosystem activity spring ephemeral
ISSN号1664-462X
DOI10.3389/fpls.2075.07789
文献子类Article
英文摘要Ephemerals, widely distributed in the Gobi desert, have developed significant characteristics to sustain high photosynthetic efficiency under high light (HL) conditions. Since the light reaction is the basis for photosynthetic conversion of solar energy to chemical energy, the photosynthetic performances in thylakoid membrane of the spring ephemerals in response to HL were studied. Three plant species, namely two C3 spring ephemeral species of Cruciferae: Arabidopsis pumila (4. pumila) and Sisymbrium altissimum (S, altissimum), and the model plant Arabidopsis thaliana (A, thaliana) were chosen for the study. The ephemeral A. porn/la, which is genetically close to A. thallana and ecologically in the same habitat as S. altissimum, was used to avoid complications arising from the superficial differences resulted from comparing plants from two extremely contrasting ecological groups. The findings manifested that the ephemerals showed significantly enhanced activities of photosystem (PS) II under HL conditions, while the activities of PSII in A. thaliana were markedly decreased under the same conditions. Detailed analyses of the electron transport processes revealed that the increased plastoquinone pool oxidization, together with the enhanced PSI activities, ensured a lowered excitation pressure to PSII of both ephemerals, and thus facilitated the photosynthetic control to avoid photodamage to PSII. The analysis of the reaction centers of the PSs, both in terms of D-1 protein turnover kinetics and the long-term adaptation, revealed that the unusually stable PSs structure provided the basis for the ephemerals to carry out high photosynthetic performances. It is proposed that the characteristic photosynthetic performances of ephemerals were resulted from effects of the long-term adaptation to the harsh environments.
学科主题Plant Sciences
出版地LAUSANNE
WOS关键词CYCLIC ELECTRON-TRANSPORT ; DESERT WINTER ANNUALS ; CHLOROPHYLL-FLUORESCENCE ; ENERGY-DISSIPATION ; QUANTUM EFFICIENCY ; GENE-EXPRESSION ; C-3 PLANTS ; PHOTOSYNTHESIS ; PHOTOINHIBITION ; ACCLIMATION
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000367655900001
出版者FRONTIERS MEDIA SA
资助机构National Basic Research Program of ChinaNational Basic Research Program of China [2011CBA00904] ; Chinese Academy of SciencesChinese Academy of Sciences [KSZD-EW-Z-018, KGZD-EW-T05] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31570236, 31370275, 31200186]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/25327]  
专题中科院光生物学重点实验室
作者单位1.Chinese Acad Sci, Key Lab Photobiol, Inst Bot, Beijing, Peoples R China
2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Biogeog & Bioresource, Urumqi, Peoples R China
3.Univ Leipzig, Inst Biol, Dept Plant Physiol, D-04109 Leipzig, Germany
推荐引用方式
GB/T 7714		 Tu, Wenfeng,Li, Yang,Liu, Wu,et al. Spring Ephemerals Adapt to Extremely High Light Conditions via an Unusual Stabilization of Photosystem II[J]. FRONTIERS IN PLANT SCIENCE,2016,6.
APA Tu, Wenfeng.,Li, Yang.,Liu, Wu.,Wu, Lishuan.,Xie, Xiaoyan.,...&Yang, Chunhong.(2016).Spring Ephemerals Adapt to Extremely High Light Conditions via an Unusual Stabilization of Photosystem II.FRONTIERS IN PLANT SCIENCE,6.
MLA Tu, Wenfeng,et al."Spring Ephemerals Adapt to Extremely High Light Conditions via an Unusual Stabilization of Photosystem II".FRONTIERS IN PLANT SCIENCE 6(2016).

入库方式： OAI收割

来源：植物研究所

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