Photoinhibition of photosystem I in Nephrolepis falciformis depends on reactive oxygen species generated in the chloroplast stroma
文献类型：期刊论文
| 作者 | Huang, Wei1 ; Tikkanen, Mikko2; Zhang, Shi-Bao1
|
| 刊名 | PHOTOSYNTHESIS RESEARCH
 |
| 出版日期 | 2018-07-01 |
| 卷号 | 137期号:1页码:129-140 |
| 关键词 | Chlorophyll Fluorescence High Light Methyl Viologen Photoinhibition Photosystem Superoxide |
| ISSN号 | 0166-8595 |
| DOI | 10.1007/s11120-018-0484-1 |
| 英文摘要 | We studied how high light causes photoinhibition of photosystem I (PSI) in the shade-demanding fern Nephrolepis falciformis, in an attempt to understand the mechanism of PSI photoinhibition under natural field conditions. Intact leaves were treated with constant high light and fluctuating light. Detached leaves were treated with constant high light in the presence and absence of methyl viologen (MV). Chlorophyll fluorescence and P700 signal were determined to estimate photoinhibition. PSI was highly oxidized under high light before treatments. N. falciformis showed significantly stronger photoinhibition of PSI and PSII under constant high light than fluctuating light. These results suggest that high levels of P700 oxidation ratio cannot prevent PSI photoinhibition under high light in N. falciformis. Furthermore, photoinhibition of PSI in N. falciformis was largely accelerated in the presence of MV that promotes the production of superoxide anion radicals in the chloroplast stroma by accepting electrons from PSI. From these results, we propose that photoinhibition of PSI in N. falciformis is mainly caused by superoxide radicals generated in the chloroplast stroma, which is different from the mechanism of PSI photoinhibition in Arabidopsis thaliana and spinach. Here, we provide some new insights into the PSI photoinhibition under natural field conditions. |
| 语种 | 英语 |
| WOS记录号 | WOS:000435365700010 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/61426]  |
| 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 |
| 作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650201, Yunnan, Peoples R China 2.Univ Turku, Dept Biochem, Mol Plant Biol, Turku 20014, Finland |
| 推荐引用方式 GB/T 7714 | Huang, Wei,Tikkanen, Mikko,Zhang, Shi-Bao. Photoinhibition of photosystem I in Nephrolepis falciformis depends on reactive oxygen species generated in the chloroplast stroma[J]. PHOTOSYNTHESIS RESEARCH,2018,137(1):129-140. |
| APA | Huang, Wei,Tikkanen, Mikko,&Zhang, Shi-Bao.(2018).Photoinhibition of photosystem I in Nephrolepis falciformis depends on reactive oxygen species generated in the chloroplast stroma.PHOTOSYNTHESIS RESEARCH,137(1),129-140. |
| MLA | Huang, Wei,et al."Photoinhibition of photosystem I in Nephrolepis falciformis depends on reactive oxygen species generated in the chloroplast stroma".PHOTOSYNTHESIS RESEARCH 137.1(2018):129-140. |
入库方式： OAI收割
来源：昆明植物研究所
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