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Regulation of Ferredoxin-NADP(+) Oxidoreductase to Cyclic Electron Transport in High Salinity Stressed Pyropia yezoensis
Yu, Bin1,4; Niu, Jianfeng1,2,3; Feng, Jianhua1; Xu, Meiling1; Xie, Xiujun1,2,3; Gu, Wenhui1,2,3; Gao, Shan1,2,3; Wang, Guangce1,2,3
2018-07-25
Source PublicationFRONTIERS IN PLANT SCIENCE
ISSN1664-462X
Volume9Pages:13
Corresponding AuthorNiu, Jianfeng(jf_niu@qdio.ac.cn) ; Wang, Guangce(gcwang@qdio.ac.cn)
AbstractPyropia yezoensis can survive the severe water loss that occurs during low tide, making it an ideal species to investigate the acclimation mechanism of intertidal seaweed to special extreme environments. In this study, we determined the effects of high salinity on photosynthesis using increasing salinity around algal tissues. Both electron transport rates, ETR (I) and ETR (II), showed continuous decreases as the salinity increased. However, the difference between these factors remained relatively stable, similar to the control. Inhibitor experiments illustrated that there were at least three different cyclic electron transport pathways. Under conditions of severe salinity, NAD(P) H could be exploited as an endogenous electron donor to reduce the plastoquinone pool in Py. yezoensis. Based on these findings, we next examined how these different cyclic electron transport (CETs) pathways were coordinated by cloning the gene (HM370553) for ferredoxin-NADP C oxidoreductase (FNR). A phylogenetic tree was constructed, and the evolutionary relationships among different FNRs were evaluated. The results indicated that the Py. yezoensis FNR showed a closer relationship with cyanobacterial FNR. The results of both real-time polymerase chain reaction and western blotting showed that the enzyme was upregulated under 90-120 h salinity. Due to the structurefunction correlations in organism, Py. yezoensis FNR was proposed to be involved in NAD(P) H-dependent Fd C reduction under severe salinity conditions. Thus, through the connection between different donors bridged by FNR, electrons were channeled toward distinct routes according to the different metabolic demands. This was expected to make the electron transfer in the chloroplasts become more flexible and to contribute greatly to acclimation of Py. yezoensis to the extreme variable environments in the intertidal zone.
Keywordelectron transportation ferredoxin-NADP(+) reductase Pyropia yezoensis stress responding environmental acclimation
DOI10.3389/fpls.2018.01092
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41476140] ; National Natural Science Foundation of China[41776150] ; China Agriculture Research System-50 and National Key Research and Development Project[2016YFC1400600] ; Science and Technology Plan of Jiangsu Province[BE2016330] ; Strategic Leading Science and Technology Projects of Chinese Academy of Sciences[XDA11020705]
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000439717600001
PublisherFRONTIERS MEDIA SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/163502
Collection实验海洋生物学重点实验室
Corresponding AuthorNiu, Jianfeng; Wang, Guangce
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
4.Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yu, Bin,Niu, Jianfeng,Feng, Jianhua,et al. Regulation of Ferredoxin-NADP(+) Oxidoreductase to Cyclic Electron Transport in High Salinity Stressed Pyropia yezoensis[J]. FRONTIERS IN PLANT SCIENCE,2018,9:13.
APA Yu, Bin.,Niu, Jianfeng.,Feng, Jianhua.,Xu, Meiling.,Xie, Xiujun.,...&Wang, Guangce.(2018).Regulation of Ferredoxin-NADP(+) Oxidoreductase to Cyclic Electron Transport in High Salinity Stressed Pyropia yezoensis.FRONTIERS IN PLANT SCIENCE,9,13.
MLA Yu, Bin,et al."Regulation of Ferredoxin-NADP(+) Oxidoreductase to Cyclic Electron Transport in High Salinity Stressed Pyropia yezoensis".FRONTIERS IN PLANT SCIENCE 9(2018):13.
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