| Effects of Short-Term High Temperature on Photosynthesis and Photosystem II Performance in Sorghum | |
Yan, K.2 ; Chen, P.2,3; Shao, H.1,2; Zhang, L.2; Xu, G.2
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| 发表期刊 | JOURNAL OF AGRONOMY AND CROP SCIENCE
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| ISSN | 0931-2250 |
| 2011-10-01 | |
| 卷号 | 197期号:5页码:400-408 |
| 关键词 | Climate Change Drought Gas Exchange Jip Test Photosynthetic Recovery Ps Ii Performance |
| 产权排序 | [Yan, K.; Chen, P.; Shao, H.; Zhang, L.; Xu, G.] Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Shandong Prov Key Lab Coastal Environm Proc, Yantai, Peoples R China; [Shao, H.] QUST, Inst Life Sci, Qingdao 266042, Peoples R China; [Chen, P.] Chinese Acad Sci, Grad Univ, Beijing, Peoples R China |
| 通讯作者 | Shao, H (reprint author), QUST, Inst Life Sci, Qingdao 266042, Peoples R China |
| 作者部门 | 滨海湿地实验室 |
| 英文摘要 | Gas exchange and chlorophyll a fluorescence transient were examined in leaves of sorghum at high temperatures. No changes were found in photosynthetic rate (Pn) and photosystem II (PS II) performance index on absorption base (PI(abs)) at 40 degrees C for 1 h. But transpiration rate was enhanced significantly, which served as a self-protection response for dissipating heat. The Pn decreased significantly at 40 degrees C for 3 h, and the decrease became greater at 45 degrees C. Decrease in Pn mainly resulted from stomatal limitation at 40 degrees C for 3 h, whereas it was due to non-stomatal limitation at 45 degrees C. Decline in PS II function indicated by the significant decrease in PI(abs), trapped energy flux and electron transport flux were responsible for the decrease in Pn at 45 degrees C. PS II reaction centre and oxygen-evolving complex in the donor side were not affected at high temperatures, but electron transport in the acceptor side was sensitive to high temperature. The PS II function recovered completely 1 day after high temperature stress even as high as 45 degrees C, which is favourable for sorghum to meet the challenge of global warming. However, Pn did not completely recover possibly due to heat-induced irreversible damage to CO(2) fixation process. |
| 文章类型 | Article |
| 资助机构 | One Hundred-Talent Plan of Chinese Academy of Sciences (CAS); CAS/SAFEA; National Natural Science Foundation of China[41001137]; Science & Technology Development Plan of Shandong Province[2010GSF10208]; Science & Technology Development Plan of Yantai City[20102450]; CAS[KZCX2-YW-JC203, 2009Y2B211] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | BICOLOR L. MOENCH ; GRAIN-SORGHUM ; HIGHER-PLANTS ; ENHANCED THERMOTOLERANCE ; HEAT-STRESS ; WATER ; FLUORESCENCE ; DROUGHT ; WHEAT ; TOLERANCE |
| 研究领域[WOS] | Agriculture |
| WOS记录号 | WOS:000295014300008 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/5310 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_滨海湿地实验室 中国科学院烟台海岸带研究所知识产出 中国科学院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.QUST, Inst Life Sci, Qingdao 266042, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Shandong Prov Key Lab Coastal Environm Proc, Yantai, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, K.,Chen, P.,Shao, H.,et al. Effects of Short-Term High Temperature on Photosynthesis and Photosystem II Performance in Sorghum[J]. JOURNAL OF AGRONOMY AND CROP SCIENCE,2011,197(5):400-408. |
| APA | Yan, K.,Chen, P.,Shao, H.,Zhang, L.,&Xu, G..(2011).Effects of Short-Term High Temperature on Photosynthesis and Photosystem II Performance in Sorghum.JOURNAL OF AGRONOMY AND CROP SCIENCE,197(5),400-408. |
| MLA | Yan, K.,et al."Effects of Short-Term High Temperature on Photosynthesis and Photosystem II Performance in Sorghum".JOURNAL OF AGRONOMY AND CROP SCIENCE 197.5(2011):400-408. |
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