IOCAS-IR  > 实验海洋生物学重点实验室
Involvement of cyclic electron flow in irradiance stress responding and its potential regulation of the mechanisms in Pyropia yezoensis
Niu Jianfeng1,3,4; Feng Jianhua2; Xie Xiujun1,4; Gao Shan1,4; Wang Guangce1,3,4
2016-07-01
Source PublicationCHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
Volume34Issue:4Pages:730-739
SubtypeArticle
AbstractPyropia yezoensis, belongs to the genus of Porphyra before 2011, inhabit on intertidal zone rocks where irradiation changes dramatically, implying that the seaweed has gained certain mechanisms to survive a harsh environment. Based on the photosynthetic parameters with or without the inhibitors determined by a Dual-PAM-100 apparatus, we investigated the photosynthetic performance and the changes in electron flow that occurred during the algae were stressed with different light intensities previously. When the irradiation saturation was approaching, the CEF around PS I became crucial since the addition of inhibitors usually led to an increase in non-photochemical quenching. The inhibitor experiments showed that there were at least three different CEF pathways in Py. yezoensis and these pathways compensated each other. In addition to maintaining a proper ratio of ATP/NAD(P)H to support efficient photosynthesis, the potential roles of CEF might also include the regulation of different photoprotective mechanisms in Py. yezoensis. Under the regulation of CEF, chlororespiration is thought to transport electrons from the reduced plastoquinone (PQ) pool to oxygen in order to mitigate the reduction in the electron transfer chain. When irradiation was up to the high-grade stress conditions, the relative value of CEF began to decrease, which implied that the NADP(+) pool or PQ(+) pool was very small and that the electrons were transferred from reduced PS I to oxygen. The scavenging enzymes might be activated and the water-water cycle probably became an effective means of removing the active oxygen produced by the irradiation stressed Py. yezoensis. We believe that the different mechanisms could make up the photoprotective network to allow Py. yezoensis for survival in a highly variable light stress habitat, which may enlighten scientists in future studies on irradiance stress in other algae species.
KeywordCyclic Electron Flow Dual-pam Pyropia Yezoensis Irradiation Stress Photoprotective Mechanism
DOI10.1007/s00343-016-4236-9
Indexed BySCI
Language英语
WOS IDWOS:000377207800009
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/126222
Collection实验海洋生物学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
2.Tianjin Univ Sci & Technol, Coll Marine Sci & Engn, Tianjin 300457, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Nantong Branch, Nantong 226006, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266071, Peoples R China
First Author Affilication中国科学院海洋研究所
Recommended Citation
GB/T 7714
Niu Jianfeng,Feng Jianhua,Xie Xiujun,et al. Involvement of cyclic electron flow in irradiance stress responding and its potential regulation of the mechanisms in Pyropia yezoensis[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2016,34(4):730-739.
APA Niu Jianfeng,Feng Jianhua,Xie Xiujun,Gao Shan,&Wang Guangce.(2016).Involvement of cyclic electron flow in irradiance stress responding and its potential regulation of the mechanisms in Pyropia yezoensis.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,34(4),730-739.
MLA Niu Jianfeng,et al."Involvement of cyclic electron flow in irradiance stress responding and its potential regulation of the mechanisms in Pyropia yezoensis".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 34.4(2016):730-739.
Files in This Item:
File Name/Size DocType Version Access License
Involvement of cycli(350KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Niu Jianfeng]'s Articles
[Feng Jianhua]'s Articles
[Xie Xiujun]'s Articles
Baidu academic
Similar articles in Baidu academic
[Niu Jianfeng]'s Articles
[Feng Jianhua]'s Articles
[Xie Xiujun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Niu Jianfeng]'s Articles
[Feng Jianhua]'s Articles
[Xie Xiujun]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Involvement of cyclic electron flow in irradiance stress responding and its potential regulation of the mechanisms in Pyropia yezoensis.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.