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| Partially dissecting the steady-state electron fluxes in Photosystem I in wild-type and pgr5 and ndh mutants of Arabidopsis | |
| Kou, Jiancun; Takahashi, Shunichi; Fan, Da-Yong; Badger, Murray R.; Chow, Wah S. | |
| 2015 | |
| Source Publication | FRONTIERS IN PLANT SCIENCE
 |
| ISSN | 1664-462X |
| Volume | 6 |
| Abstract | 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. |
| Keyword | antimycin A Arabidopsis cyclic electron flow ndh mutant P700 pgr5 mutant photosystem I |
| Subject Area | Plant Sciences |
| DOI | 10.3389/fpls.2015.00758 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | FLOW ; TRANSPORT ; PHOTOSYNTHESIS ; PLANTS ; PHOTOPHOSPHORYLATION ; PHOTOPROTECTION ; MECHANISMS ; PSI |
| WOS Research Area | Science Citation Index Expanded (SCI-EXPANDED) |
| WOS ID | WOS:000361308500002 |
| Publisher | FRONTIERS MEDIA SA |
| Subtype | Article |
| Publication Place | LAUSANNE |
| Funding Organization | 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 |
| Corresponding Author Email | fred.chow@anu.edu.au |
| OA | Green Published, gold |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ibcas.ac.cn/handle/2S10CLM1/25971 |
| Collection | 植被与环境变化国家重点实验室 |
| Affiliation | 1.Northwest A&F Univ, Coll Anim Sci & Technol, Yangling, Peoples R China 2.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 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China |
| Recommended Citation 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). |
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| File Name/Size | DocType | Version | Access | License | ||
| S1664462X_S1664462X1（2363KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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