Different Strategies for Photosynthetic Regulation under Fluctuating Light in Two Sympatric Paphiopedilum Species
文献类型：期刊论文
| 作者 | Feng,Jing-Qiu; Huang,Wei ; Wang,Ji-Hua; Zhang,Shi-Bao
|
| 刊名 | CELLS
 |
| 出版日期 | 2021 |
| 卷号 | 10期号:6页码:1451 |
| 关键词 | cyclic electron flow fluctuating light Paphiopedilum photosystem I water-water cycle CYCLIC ELECTRON FLOW WATER-WATER CYCLE PROTON MOTIVE FORCE PHOTOSYSTEM-I FLAVODIIRON PROTEINS PHYSIOLOGICAL-ROLE REDOX STATE GROWTH PHOTOPROTECTION TRANSPORT |
| ISSN号 | 2073-4409 |
| DOI | 10.3390/cells10061451 |
| 英文摘要 | Fluctuating light can cause selective photoinhibition of photosystem I (PSI) in angiosperms. Cyclic electron flow (CEF) around PSI and electron flux from water via the electron transport chain to oxygen (the water-water cycle) play important roles in coping with fluctuating light in angiosperms. However, it is unclear whether plant species in the same genus employ the same strategy to cope with fluctuating light. To answer this question, we measured P700 redox kinetics and chlorophyll fluorescence under fluctuating light in two Paphiopedilum (P.) Pftzer (Orchidaceae) species, P. dianthum and P. micranthum. After transition from dark to high light, P. dianthum displayed a rapid re-oxidation of P700, while P. micranthum displayed an over-reduction of P700. Furthermore, the rapid re-oxidation of P700 in P. dianthum was not observed when measured under anaerobic conditions. These results indicated that photo-reduction of O-2 mediated by the water-water cycle was functional in P. dianthum but not in P. micranthum. Within the first few seconds after an abrupt transition from low to high light, PSI was highly oxidized in P. dianthum but was highly reduced in P. micranthum, indicating that the different responses of PSI to fluctuating light between P. micranthum and P. dianthum was attributed to the water-water cycle. In P. micranthum, the lack of the water-water cycle was partially compensated for by an enhancement of CEF. Taken together, P. dianthum and P. micranthum employed different strategies to cope with the abrupt change of light intensity, indicating the diversity of strategies for photosynthetic acclimation to fluctuating light in these two closely related orchid species. |
| WOS记录号 | WOS:000665399000001 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/73063]  |
| 专题 | 中国科学院昆明植物研究所 |
| 作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Yunnan Key Lab Wild Plant Resources, Kunming 650201, Yunnan, Peoples R China 2.Yunnan Acad Agr Sci, Flower Res Inst, Kunming 650205, Yunnan, Peoples R China 3.[Feng, Jing-Qiu 4.Huang, Wei 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng,Jing-Qiu,Huang,Wei,Wang,Ji-Hua,et al. Different Strategies for Photosynthetic Regulation under Fluctuating Light in Two Sympatric Paphiopedilum Species[J]. CELLS,2021,10(6):1451. |
| APA | Feng,Jing-Qiu,Huang,Wei,Wang,Ji-Hua,&Zhang,Shi-Bao.(2021).Different Strategies for Photosynthetic Regulation under Fluctuating Light in Two Sympatric Paphiopedilum Species.CELLS,10(6),1451. |
| MLA | Feng,Jing-Qiu,et al."Different Strategies for Photosynthetic Regulation under Fluctuating Light in Two Sympatric Paphiopedilum Species".CELLS 10.6(2021):1451. |
入库方式： OAI收割
来源：昆明植物研究所
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