Photosynthetic regulation under fluctuating light in field-grown Cerasus cerasoides: A comparison of young and mature leaves | |
Yang, Ying-Jie2,3; Zhang, Shi-Bao3; Wang, Ji-Hua1; Huang, Wei3 | |
刊名 | BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS |
2019-11-01 | |
卷号 | 1860期号:11页码:9 |
关键词 | Psi Redox State Photoinhibition Photoprotection Cyclic Electron Flow Developmental Stages Proton Gradient |
ISSN号 | 0005-2728 |
DOI | 10.1016/j.bbabio.2019.148073 |
英文摘要 | Photosystem I (PSI) is a potential target of photoinhibition under fluctuating light. However, photosynthetic regulation under fluctuating light in field-grown plants is little known. Furthermore, it is unclear how young leaves protect PSI against fluctuating light under natural field conditions. In the present study, we examined chlorophyll fluorescence, P700 redox state and the electrochromic shift signal in the young and mature leaves of field-grown Cerasus cerasoides (Rosaceae). Within the first seconds after any increase in light intensity, young leaves showed higher proton gradient (Delta pH) across the thylakoid membranes than the mature leaves, preventing over-reduction of PSI in the young leaves. As a result, PSI was more tolerant to fluctuating light in the young leaves than in the mature leaves. Interestingly, after transition from low to high light, the activity of cyclic electron flow (CEF) in young leaves increased first to a high level and then decreased to a stable value, while this rapid stimulation of CEF was not observed in the mature leaves. Furthermore, the over-reduction of PSI significantly stimulated CEF in the young leaves but not in the mature leaves. Taken together, within the first seconds after any increase in illumination, the stimulation of CEF favors the rapid lumen acidification and optimizes the PSI redox state in the young leaves, protecting PSI against photoinhibition under fluctuating light in field-grown plants. |
WOS研究方向 | Biochemistry & Molecular Biology ; Biophysics |
WOS记录号 | WOS:000498290000002 |
内容类型 | 期刊论文 |
源URL | [http://ir.kib.ac.cn/handle/151853/70616] |
专题 | 昆明植物研究所_资源植物与生物技术所级重点实验室 |
通讯作者 | Wang, Ji-Hua; Huang, Wei |
作者单位 | 1.Yunnan Acad Agr Sci, Flower Res Inst, Kunming, Yunnan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Kunming Inst Bot, Kunming 650201, Yunnan, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Ying-Jie,Zhang, Shi-Bao,Wang, Ji-Hua,et al. Photosynthetic regulation under fluctuating light in field-grown Cerasus cerasoides: A comparison of young and mature leaves[J]. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS,2019,1860(11):9. |
APA | Yang, Ying-Jie,Zhang, Shi-Bao,Wang, Ji-Hua,&Huang, Wei.(2019).Photosynthetic regulation under fluctuating light in field-grown Cerasus cerasoides: A comparison of young and mature leaves.BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS,1860(11),9. |
MLA | Yang, Ying-Jie,et al."Photosynthetic regulation under fluctuating light in field-grown Cerasus cerasoides: A comparison of young and mature leaves".BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1860.11(2019):9. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论