Please use this identifier to cite or link to this item:
http://223.31.159.10:8080/jspui/handle/123456789/982
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kong, Xiuzhen | - |
dc.contributor.author | Huang, Guoqiang | - |
dc.contributor.author | Xiong, Yali | - |
dc.contributor.author | Zhao, Chunyan | - |
dc.contributor.author | Wang, Jun | - |
dc.contributor.author | Song, Xiaoyun | - |
dc.contributor.author | Giri, Jitender | - |
dc.contributor.author | Zuo, Kaijing | - |
dc.date.accessioned | 2019-09-16T05:37:13Z | - |
dc.date.available | 2019-09-16T05:37:13Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | International Journal of Molecular Sciences, 20(18): 4429 | en_US |
dc.identifier.issn | 1422-0067 | - |
dc.identifier.uri | http://223.31.159.10:8080/jspui/handle/123456789/982 | - |
dc.description | Accepted date: 6 September 2019 | en_US |
dc.description.abstract | Biodiversity in plant shape is mainly attributable to the diversity of leaf shape, which is largely determined by the transient morphogenetic activity of the leaf margin that creates leaf serrations. However, the precise mechanism underlying the establishment of this morphogenetic capacity remains poorly understood. We report here that INDOLE-3-BUTYRIC ACID RESPONSE 5 (IBR5), a dual-specificity phosphatase, is a key component of leaf-serration regulatory machinery. Loss-of-function mutants of IBR5 exhibited pronounced serrations due to increased cell area. IBR5 was localized in the nucleus of leaf epidermis and petiole cells. Introducing a C129S mutation within the highly conserved VxVHCx2GxSRSx5AYLM motif of IBR5 rendered it unable to rescue the leaf-serration defects of the ibr5-3 mutant. In addition, auxin reporters revealed that the distribution of auxin maxima was expanded ectopically in ibr5-3. Furthermore, we found that the distribution of PIN1 on the plasma membrane of the epidermal and cells around the leaf vein was compromised in ibr5-3. We concluded that IBR5 is essential for the establishment of PIN-FORMED 1 (PIN1)-directed auxin maxima at the tips of leaf serration, which is vital for the elaborated regulation during its formation. | en_US |
dc.description.sponsorship | We thank the NASC for kindly providing the plant materials described in this article. We thank Hongwei Xue for providing DR5-GUS, DR5-GFP, and PIN1-GFP transgenic seeds. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | MDPI AG | en_US |
dc.subject | Arabidopsis | en_US |
dc.subject | leaf serrations | en_US |
dc.subject | IBR5 | en_US |
dc.subject | auxin maxima | en_US |
dc.subject | PIN1 | en_US |
dc.title | IBR5 regulates leaf serrations development via modulation of the expression of PIN1 | en_US |
dc.type | Article | en_US |
dc.identifier.officialurl | https://www.mdpi.com/1422-0067/20/18/4429 | en_US |
dc.identifier.doi | https://doi.org/10.3390/ijms20184429 | en_US |
Appears in Collections: | Institutional Publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Giri J_2019_1.pdf | 6.42 MB | Adobe PDF | View/Open |
Items in IR@NIPGR are protected by copyright, with all rights reserved, unless otherwise indicated.