Reorganization of photosystem II is involved in the rapid photosynthetic recovery of desert moss Syntrichia caninervis upon rehydration
文献类型：期刊论文
| 作者 | Li ; Yang ; Wang ; Zhaobao ; Xu ; Tianhua ; Tu ; Wenfeng ; Liu ; Cheng ; Zhang ; Yuanming ; Chunhong |
| 刊名 | JOURNAL OF PLANT PHYSIOLOGY
 |
| 出版日期 | 2010 |
| 卷号 | 167期号:16页码:1390-1397 |
| 关键词 | THERMAL-ENERGY DISSIPATION CYTOCHROME B(6)F COMPLEX DESICCATION-TOLERANCE TORTULA-RURALIS PHYSCOMITRELLA-PATENS CHLOROPHYLL-A ATRICHUM-ANDROGYNUM POLYTRICHUM-FORMOSUM POIKILOHYDRIC MOSSES REACTION CENTERS |
| ISSN号 | 0176-1617 |
| 通讯作者 | Yang, CH, Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Beijing 100093, Peoples R China |
| 中文摘要 | The moss Syntrichia caninervis (S caninervis) is one of the dominant species in biological soil crusts of deserts It has long been the focus of scientific research because of its ecological value Moreover S caninervis has a special significance in biogenesis research because it is characterized by its fast restoration of photosynthesis upon onset of rehydration of the desiccated organism In order to study the mechanisms of rapid photosynthetic recovery in mosses upon rewatering we investigated the kinetics of the recovery process of photosynthetic activity in photosystem (PS) II with an indirect assessment of the photochemical processes based on chlorophyll (Chl) fluorescence measurements Our results showed that recovery can be divided into two phases The fast initial phase completed within 3 min was characterized by a quick increase in maximal quantum efficiency of PSII (F-v/F-m) Over 50% of the PSII activities including excitation energy transfer oxygen evolution charge separation and electron transport recovered within 0 5 min after rehydration The second slow phase was dominated by the increase of plastoquinone (PQ) reduction and the equilibrium of the energy transport from the inner antenna to the reaction center (RC) of PSII Analysis of the recovery process in the presence of 3-(3 4-dichlorophenyl)-1 1-dimethyl urea (DCMU) revealed that blocking the electron transport from Q(A) to Q(B) did not hamper Chl synthesis or Chl organization in thylakoid membranes under light conditions A de novo chloroplast protein synthesis was not necessary for the initial recovery of photochemical activity in PSII In conclusion the moss s ability for rapid recovery upon rehydration is related to Chl synthesis quick structural reorganization of PSII and fast restoration of PSII activity without de novo chloroplast protein synthesis (C) 2010 Published by Elsevier GmbH |
| 学科主题 | 植物生理学 |
| 收录类别 | SCI |
| 公开日期 | 2011-08-19 |
| 源URL | [http://ir.xjlas.org/handle/365004/9870]  |
| 专题 | 新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据) |
| 推荐引用方式 GB/T 7714 | Li,Yang,Wang,et al. Reorganization of photosystem II is involved in the rapid photosynthetic recovery of desert moss Syntrichia caninervis upon rehydration[J]. JOURNAL OF PLANT PHYSIOLOGY,2010,167(16):1390-1397. |
| APA | Li.,Yang.,Wang.,Zhaobao.,Xu.,...&Chunhong.(2010).Reorganization of photosystem II is involved in the rapid photosynthetic recovery of desert moss Syntrichia caninervis upon rehydration.JOURNAL OF PLANT PHYSIOLOGY,167(16),1390-1397. |
| MLA | Li,et al."Reorganization of photosystem II is involved in the rapid photosynthetic recovery of desert moss Syntrichia caninervis upon rehydration".JOURNAL OF PLANT PHYSIOLOGY 167.16(2010):1390-1397. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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