دورية أكاديمية
Control of root cap maturation and cell detachment by BEARSKIN transcription factors in Arabidopsis.
| العنوان: | Control of root cap maturation and cell detachment by BEARSKIN transcription factors in Arabidopsis. |
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| المؤلفون: | Kamiya M; Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan., Higashio SY; Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan., Isomoto A; Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan., Kim JM; RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan., Seki M; RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan., Miyashima S; Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan., Nakajima K; Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan k-nakaji@bs.naist.jp. |
| المصدر: | Development (Cambridge, England) [Development] 2016 Nov 01; Vol. 143 (21), pp. 4063-4072. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Company Of Biologists Limited Country of Publication: England NLM ID: 8701744 Publication Model: Print Cited Medium: Internet ISSN: 1477-9129 (Electronic) Linking ISSN: 09501991 NLM ISO Abbreviation: Development Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Cambridge Eng : Company Of Biologists Limited Original Publication: [Cambridge] : Company of Biologists, [c1987- |
| مواضيع طبية MeSH: | Arabidopsis*/genetics , Arabidopsis*/growth & development, Cell Differentiation/*genetics , Cell Movement/*genetics , Plant Root Cap/*growth & development , Transcription Factors/*physiology, Arabidopsis Proteins/genetics ; Arabidopsis Proteins/physiology ; Gene Expression Regulation, Plant ; Meristem/cytology ; Meristem/growth & development ; Meristem/metabolism ; Plant Root Cap/cytology ; Plant Roots/cytology ; Plant Roots/growth & development ; Transcription Factors/genetics ; Transcription Factors/metabolism |
| مستخلص: | The root cap supports root growth by protecting the root meristem, sensing gravity and interacting with the rhizosphere through metabolite secretion and cell dispersal. Sustained root cap functions therefore rely on balanced proliferation of proximal stem cells and regulated detachment of distal mature cells. Although the gene regulatory network that governs stem cell activity in the root cap has been extensively studied in Arabidopsis, the mechanisms by which root cap cells mature and detach from the root tip are poorly understood. We performed a detailed expression analysis of three regulators of root cap differentiation, SOMBRERO, BEARSKIN1 and BEARSKIN2, and identified their downstream genes. Our results indicate that expression of BEARSKIN1 and BEARSKIN2 is associated with cell positioning on the root surface. We identified a glycosyl hydrolase 28 (GH28) family polygalacturonase (PG) gene as a direct target of BEARSKIN1. Overexpression and loss-of-function analyses demonstrated that the protein encoded by this PG gene facilitates cell detachment. We thus revealed a molecular link between the key regulators of root cap differentiation and the cellular events underlying root cap-specific functions. (© 2016. Published by The Company of Biologists Ltd.) |
| فهرسة مساهمة: | Keywords: Arabidopsis thaliana; Cell detachment; Cell wall; NAC transcription factor; Root cap |
| المشرفين على المادة: | 0 (Arabidopsis Proteins) 0 (Transcription Factors) |
| تواريخ الأحداث: | Date Created: 20161103 Date Completed: 20170911 Latest Revision: 20171125 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1242/dev.142331 |
| PMID: | 27803060 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1477-9129 |
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| DOI: | 10.1242/dev.142331 |