Partially dissecting the steady-state electron fluxes in Photosystem I in wild-type and pgr5 and ndh mutants of Arabidopsis
文献类型:期刊论文
作者 | Kou, Jiancun; Takahashi, Shunichi; Fan, Da-Yong; Badger, Murray R.; Chow, Wah S. |
刊名 | FRONTIERS IN PLANT SCIENCE
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出版日期 | 2015 |
卷号 | 6 |
关键词 | antimycin A Arabidopsis cyclic electron flow ndh mutant P700 pgr5 mutant photosystem I |
ISSN号 | 1664-462X |
DOI | 10.3389/fpls.2015.00758 |
文献子类 | Article |
英文摘要 | Cyclic electron flux (CEF) around Photosystem I (PS I) is difficult to quantify. We obtained the linear electron flux (LEFO2) through both photosystems and the total electron flux through PS I (ETR1) in Arabidopsis in CO2-enriched air. Delta Flux = ETR1 - LEFO2 is an upper estimate of CEF, which consists of two components, an antimycin A-sensitive, PGR5 (proton gradient regulation 5 protein)-dependent component and an insensitive component facilitated by a chloroplastic nicotinamide adenine dinucleotide dehydrogenase-like complex (NDH). Using wild type as well as pgr5 and ndh mutants, we observed that (1) 40% of the absorbed light was partitioned to PS I; (2) at high irradiance a substantial antimycin A-sensitive CEF occurred in the wild type and the ndh mutant; (3) at low irradiance a sizable antimycin A-sensitive CEF occurred in the wild type but not in the ndh mutant, suggesting an enhancing effect of NDH in low light; and (4) in the pgr5 mutant, and the wild type and ndh mutant treated with antimycin A, a residual Delta Flux existed at high irradiance, attributable to charge recombination and/or pseudo-cyclic electron flow. Therefore, in low-light-acclimated plants exposed to high light, Delta Flux has contributions from various paths of electron flow through PS I. |
学科主题 | Plant Sciences |
出版地 | LAUSANNE |
WOS关键词 | FLOW ; TRANSPORT ; PHOTOSYNTHESIS ; PLANTS ; PHOTOPHOSPHORYLATION ; PHOTOPROTECTION ; MECHANISMS ; PSI |
WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
语种 | 英语 |
WOS记录号 | WOS:000361308500002 |
出版者 | FRONTIERS MEDIA SA |
资助机构 | China Scholarship Council Fellowship ; Knowledge Innovation Program of the Chinese Academy of Sciences [KZCX2-XB3-09-02] ; Australian Research Council [DP1093872, CE140100015] ; Grants-in-Aid for Scientific Research [15K14611] Funding Source: KAKEN |
源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/25971] ![]() |
专题 | 植被与环境变化国家重点实验室 |
作者单位 | 1.Kou, Jiancun; Takahashi, Shunichi; Fan, Da-Yong; Badger, Murray R.; Chow, Wah S.] Australian Natl Univ, Res Sch Biol, Div Plant Sci, Canberra, ACT 2601, Australia 2.Northwest A&F Univ, Coll Anim Sci & Technol, Yangling, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Kou, Jiancun,Takahashi, Shunichi,Fan, Da-Yong,et al. Partially dissecting the steady-state electron fluxes in Photosystem I in wild-type and pgr5 and ndh mutants of Arabidopsis[J]. FRONTIERS IN PLANT SCIENCE,2015,6. |
APA | Kou, Jiancun,Takahashi, Shunichi,Fan, Da-Yong,Badger, Murray R.,&Chow, Wah S..(2015).Partially dissecting the steady-state electron fluxes in Photosystem I in wild-type and pgr5 and ndh mutants of Arabidopsis.FRONTIERS IN PLANT SCIENCE,6. |
MLA | Kou, Jiancun,et al."Partially dissecting the steady-state electron fluxes in Photosystem I in wild-type and pgr5 and ndh mutants of Arabidopsis".FRONTIERS IN PLANT SCIENCE 6(2015). |
入库方式: OAI收割
来源:植物研究所
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