Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/ppl.12146 |
Low induction of non-photochemical quenching and high photochemical efficiency in the annual desert plant Anastatica hierochuntica | |
Eppel, Amir; Shaked, Ruth; Eshel, Gil; Barak, Simon; Rachmilevitch, Shimon | |
通讯作者 | Rachmilevitch, Shimon |
来源期刊 | PHYSIOLOGIA PLANTARUM
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ISSN | 0031-9317 |
EISSN | 1399-3054 |
出版年 | 2014 |
卷号 | 151期号:4页码:544-558 |
英文摘要 | Non-photochemical quenching (NPQ) plays a major role in photoprotection. Anastatica hierochuntica is an annual desert plant found in hot deserts. We compared A. hierochuntica to three other different species: Arabidopsis thaliana, Eutrema salsugineum and Helianthus annuus, which have different NPQ and photosynthetic capacities. Anastatica hierochuntica plants had very different induction kinetics of NPQ and, to a lesser extent, of photosystem II electron transport rate (PSII ETR), in comparison to all other plants species in the experiments. The major components of the unusual photosynthetic and photoprotective response in A. hierochuntica were: (1) Low NPQ at the beginning of the light period, at various light intensities and CO2 concentrations. The described low NPQ cannot be explained by low leaf absorbance or by low energy distribution to PSII, but was related to the de-epoxidation state of xanthophylls. (2) Relatively high PSII ETR at various CO2 concentrations in correlation with low NPQ. PSII ETR responded positively to the increase of CO2 concentrations. At low CO2 concentrations PSII ETR was mostly O-2 dependent. At moderate and high CO2 concentrations the high PSII ETR in A. hierochuntica was accompanied by relatively high CO2 assimilation rates. We suggest that A. hierochuntica have an uncommon NPQ and PSII ETR response. These responses in A. hierochuntica might represent an adaptation to the short growing season of an annual desert plant. |
类型 | Article |
语种 | 英语 |
国家 | Israel |
收录类别 | SCI-E |
WOS记录号 | WOS:000340253700015 |
WOS关键词 | XANTHOPHYLL CYCLE ; RUBISCO ACTIVASE ; PHOTOSYSTEM-II ; ENERGY-DISSIPATION ; LIGHT STRESS ; C3 PLANTS ; PHOTOSYNTHESIS ; STATE ; ARABIDOPSIS ; PHOTOPROTECTION |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
来源机构 | Ben-Gurion University of the Negev |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/184200 |
作者单位 | Ben Gurion Univ Negev, Albert Katz Sch Desert Studies, Jacob Blaustein Inst Desert Desert Res, French Associates Inst Agr & Biotechnol Drylands, Beer Sheva, Israel |
推荐引用方式 GB/T 7714 | Eppel, Amir,Shaked, Ruth,Eshel, Gil,et al. Low induction of non-photochemical quenching and high photochemical efficiency in the annual desert plant Anastatica hierochuntica[J]. Ben-Gurion University of the Negev,2014,151(4):544-558. |
APA | Eppel, Amir,Shaked, Ruth,Eshel, Gil,Barak, Simon,&Rachmilevitch, Shimon.(2014).Low induction of non-photochemical quenching and high photochemical efficiency in the annual desert plant Anastatica hierochuntica.PHYSIOLOGIA PLANTARUM,151(4),544-558. |
MLA | Eppel, Amir,et al."Low induction of non-photochemical quenching and high photochemical efficiency in the annual desert plant Anastatica hierochuntica".PHYSIOLOGIA PLANTARUM 151.4(2014):544-558. |
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