DC Field | Value | Language |
---|---|---|
dc.contributor.author | Oh, YJ | - |
dc.contributor.author | Kim, H | - |
dc.contributor.author | Seo, SH | - |
dc.contributor.author | Hwang, BG | - |
dc.contributor.author | CHANG, YOON SEOK | - |
dc.contributor.author | Lee, J | - |
dc.contributor.author | Lee, DW | - |
dc.contributor.author | Sohn, EJ | - |
dc.contributor.author | LEE, SANG JOON | - |
dc.contributor.author | LEE, YOUNGSOOK | - |
dc.contributor.author | Hwang, I | - |
dc.date.accessioned | 2017-07-19T13:29:23Z | - |
dc.date.available | 2017-07-19T13:29:23Z | - |
dc.date.created | 2017-02-09 | - |
dc.date.issued | 2016-04-04 | - |
dc.identifier.issn | 1674-2052 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/37080 | - |
dc.description.abstract | Rhizosphere acidification is essential for iron (Fe) uptake into plant roots. Plasma membrane (PM) H+-ATPases play key roles in rhizosphere acidification. However, it is not fully understood how PM H+-ATPase activity is regulated to enhance root Fe uptake under Fe-deficient conditions. Here, we present evidence that cytochrome b5 reductase 1 (CBR1) increases the levels of unsaturated fatty acids, which stimulate PM H+-ATPase activity and thus lead to rhizosphere acidification. CBR1-overexpressing (CBR1-OX) Arabidopsis thaliana plants had higher levels of unsaturated fatty acids (18: 2 and 18: 3), higher PM H+-ATPase activity, and lower rhizosphere pH than wild-type plants. By contrast, cbr1 loss-of-function mutant plants showed lower levels of unsaturated fatty acids and lower PM H+-ATPase activity but higher rhizosphere pH. Reduced PM H+-ATPase activity in cbr1 could be restored in vitro by addition of unsaturated fatty acids. Transcript levels of CBR1, fatty acids desaturase 2 (FAD2), and fatty acids desaturase 3 (FAD3) were increased under Fe-deficient conditions. We propose that CBR1 has a crucial role in increasing the levels of unsaturated fatty acids, which activate the PM H+-ATPase and thus reduce rhizosphere pH. This reaction cascade ultimately promotes root Fe uptake. | - |
dc.language | English | - |
dc.publisher | CELL PRESS | - |
dc.relation.isPartOf | Molecular plant | - |
dc.title | Cytochrome b5 Reductase 1 Triggers Serial Reactions that Lead to Iron Uptake in Plants | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/J.MOLP.2015.12.010 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Molecular plant, v.9, no.4, pp.501 - 1674-2052 | - |
dc.identifier.wosid | 000373742700004 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 1674-2052 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 501 | - |
dc.citation.title | Molecular plant | - |
dc.citation.volume | 9 | - |
dc.contributor.affiliatedAuthor | CHANG, YOON SEOK | - |
dc.contributor.affiliatedAuthor | LEE, SANG JOON | - |
dc.contributor.affiliatedAuthor | LEE, YOUNGSOOK | - |
dc.contributor.affiliatedAuthor | Hwang, I | - |
dc.identifier.scopusid | 2-s2.0-84962142212 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 5 | - |
dc.description.scptc | 5 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | MEMBRANE H+-ATPASE | - |
dc.subject.keywordPlus | FERRIC-CHELATE REDUCTASE | - |
dc.subject.keywordPlus | PLASMA-MEMBRANE | - |
dc.subject.keywordPlus | ARABIDOPSIS-THALIANA | - |
dc.subject.keywordPlus | GENETIC-CHARACTERIZATION | - |
dc.subject.keywordPlus | ENDOPLASMIC-RETICULUM | - |
dc.subject.keywordPlus | FATTY-ACIDS | - |
dc.subject.keywordPlus | INSIDE-OUT | - |
dc.subject.keywordPlus | TOLERANCE | - |
dc.subject.keywordPlus | HOMEOSTASIS | - |
dc.subject.keywordAuthor | cytochrome b5 reductase 1 (CBR1) | - |
dc.subject.keywordAuthor | unsaturated fatty acids | - |
dc.subject.keywordAuthor | iron (Fe) uptake | - |
dc.subject.keywordAuthor | H+-ATPase | - |
dc.relation.journalWebOfScienceCategory | Biochemistry & Molecular Biology | - |
dc.relation.journalWebOfScienceCategory | Plant Sciences | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Biochemistry & Molecular Biology | - |
dc.relation.journalResearchArea | Plant Sciences | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
library@postech.ac.kr Tel: 054-279-2548
Copyrights © by 2017 Pohang University of Science ad Technology All right reserved.