Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3389/fpls.2075.07789 |
Spring Ephemerals Adapt to Extremely High Light Conditions via an Unusual Stabilization of Photosystem II | |
Tu, Wenfeng1; Li, Yang1; Liu, Wu1; Wu, Lishuan1; Xie, Xiaoyan1; Zhang, Yuanming2; Wilhelm, Christian3; Yang, Chunhong1 | |
通讯作者 | Yang, Chunhong |
来源期刊 | FRONTIERS IN PLANT SCIENCE |
ISSN | 1664-462X |
出版年 | 2016 |
卷号 | 6 |
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. |
英文关键词 | D1 protein turnover electron transport light stress photoinhibition photosystem activity spring ephemeral |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000367655900001 |
WOS关键词 | CYCLIC ELECTRON-TRANSPORT ; FLUORESCENCE RISE OJIP ; DESERT WINTER ANNUALS ; CHLOROPHYLL-FLUORESCENCE ; ENERGY-DISSIPATION ; GENE-EXPRESSION ; PEA LEAVES ; PHOTOSYNTHETIC ACCLIMATION ; ARABIDOPSIS-THALIANA ; QUANTUM EFFICIENCY |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
来源机构 | 中国科学院新疆生态与地理研究所 ; 中国科学院植物研究所 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/193065 |
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]. 中国科学院新疆生态与地理研究所, 中国科学院植物研究所,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). |
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