Institutional Repository of Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
| Slow zeaxanthin accumulation and the enhancement of CP26 collectively contribute to an atypical non-photochemical quenching in macroalga Ulva prolifera under high light | |
| Gao, Shan1,2; Zheng, Zhenbing1,2; Wang, Jing3; Wang, Guangce1,2 | |
| 2020-01-13 | |
| 发表期刊 | JOURNAL OF PHYCOLOGY
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| ISSN | 0022-3646 |
| 页码 | 11 |
| 通讯作者 | Wang, Guangce([email protected]) |
| 摘要 | Non-photochemical quenching (NPQ) is an important photoprotective mechanism in plants, which dissipates excess energy and further protects the photosynthetic apparatus under high light stress. NPQ can be dissected into a number of components: qE, qZ, and qI. In general, NPQ is catalyzed by two independent mechanisms, with the faster-activated quenching catalyzed by the monomeric light-harvesting complex (LHCII) proteins and the slowly activated quenching catalyzed by LHCII trimers, both processes depending on zeaxanthin but to different extent. Here, we studied the NPQ of the intertidal green macroalga, Ulva prolifera, and found that the NPQ of U. prolifera lack the faster-activated quenching, and showed much greater sensitivity to dithiothreitol (DTT) than to dicyclohexylcarbodiimide (DCCD). Further results suggested that the monomeric LHC proteins in U. prolifera included only CP29 and CP26, but lacked CP24, unlike Arabidopsis thaliana and the moss Physcomitrella patens. Moreover, the expression levels of CP26 increased significantly following exposure to high light, but the concentrations of the two important photoprotective proteins (PsbS and light-harvesting complex stress-related [LhcSR]) did not change upon the same conditions. Analysis of the xanthophyll cycle pigments showed that, upon exposure to high light, zeaxanthin synthesis in U. prolifera was gradual and much slower than that in P. patens, and could effectively be inhibited by DTT. Based on these results, we speculate the enhancement of CP26 and slow zeaxanthin accumulation provide an atypical NPQ, making this green macroalga well adapted to the intertidal environments. |
| 关键词 | CP24 Green macroalgae NPQ Photoprotection Ulva prolifera Xanthophyll cycle |
| DOI | 10.1111/jpy.12958 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[41976097]###3653; National Natural Science Foundation of China[41676157]###513; National Natural Science Foundation of China[41606161]###512; National Key R&D Program of China[2018YFD0901500]###1122; National Key R&D Program of China[2016YFC1400606]###3654; National Key R&D Program of China[2016YFC1400602]###3655; China Agriculture Research System[CARS-50]###421; Shandong Provincial RD Program[2018GHY115019]###3656; National Natural Science Foundation of China[41976097]; National Natural Science Foundation of China[41676157]; National Natural Science Foundation of China[41606161]; National Key R&D Program of China[2018YFD0901500]; National Key R&D Program of China[2016YFC1400606]; National Key R&D Program of China[2016YFC1400602]; China Agriculture Research System[CARS-50]; Shandong Provincial RD Program[2018GHY115019] |
| WOS研究方向 | Plant Sciences ; Marine & Freshwater Biology |
| WOS类目 | Plant Sciences ; Marine & Freshwater Biology |
| WOS记录号 | WOS:000507129100001 |
| 出版者 | WILEY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/164392 |
| 专题 | 实验海洋生物学重点实验室 |
| 通讯作者 | Wang, Guangce |
| 作者单位 | 1.Chinese Acad Sci, Ctr Ocean Megasci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China 3.Ocean Univ China, Coll Marine Life Sci, Qingdao, Peoples R China |
| 第一作者单位 | 中国科学院海洋大科学研究中心 |
| 通讯作者单位 | 中国科学院海洋大科学研究中心 |
| 推荐引用方式 GB/T 7714 | Gao, Shan,Zheng, Zhenbing,Wang, Jing,et al. Slow zeaxanthin accumulation and the enhancement of CP26 collectively contribute to an atypical non-photochemical quenching in macroalga Ulva prolifera under high light[J]. JOURNAL OF PHYCOLOGY,2020:11. |
| APA | Gao, Shan,Zheng, Zhenbing,Wang, Jing,&Wang, Guangce.(2020).Slow zeaxanthin accumulation and the enhancement of CP26 collectively contribute to an atypical non-photochemical quenching in macroalga Ulva prolifera under high light.JOURNAL OF PHYCOLOGY,11. |
| MLA | Gao, Shan,et al."Slow zeaxanthin accumulation and the enhancement of CP26 collectively contribute to an atypical non-photochemical quenching in macroalga Ulva prolifera under high light".JOURNAL OF PHYCOLOGY (2020):11. |
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| Slow zeaxanthin accu（1089KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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