دورية أكاديمية
Autophagy promotes organelle clearance and organized cell separation of living root cap cells in Arabidopsis thaliana.
| العنوان: | Autophagy promotes organelle clearance and organized cell separation of living root cap cells in Arabidopsis thaliana. |
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| المؤلفون: | Goh T; Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan., Sakamoto K; Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan., Wang P; School of Life Sciences, Centre for Cell and Developmental Biology and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China., Kozono S; Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan., Ueno K; Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan., Miyashima S; Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan., Toyokura K; Department of Biology, Graduate School of Science, Kobe University, Rokkodai, Kobe 657-8501, Japan., Fukaki H; Department of Biology, Graduate School of Science, Kobe University, Rokkodai, Kobe 657-8501, Japan., Kang BH; School of Life Sciences, Centre for Cell and Developmental Biology and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China., Nakajima K; Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan. |
| المصدر: | Development (Cambridge, England) [Development] 2022 Jun 15; Vol. 149 (11). Date of Electronic Publication: 2022 Jun 16. |
| 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-Electronic 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*/metabolism, Autophagy ; Cell Separation ; Humans ; Organelles ; Plant Root Cap ; Plant Roots/metabolism |
| مستخلص: | The root cap is a multilayered tissue covering the tip of a plant root that directs root growth through its unique functions, such as gravity sensing and rhizosphere interaction. To maintain the structure and function of the root cap, its constituent cells are constantly turned over through balanced cell division and cell detachment in the inner and outer cell layers, respectively. Upon displacement toward the outermost layer, columella cells at the central root cap domain functionally transition from gravity-sensing cells to secretory cells, but the mechanisms underlying this drastic cell fate transition are largely unknown. Here, using live-cell tracking microscopy, we show that organelles in the outermost cell layer undergo dramatic rearrangements. This rearrangement depends, at least partially, on spatiotemporally regulated activation of autophagy. Notably, this root cap autophagy does not lead to immediate cell death, but is instead necessary for organized separation of living root cap cells, highlighting a previously undescribed role of developmentally regulated autophagy in plants. This article has an associated 'The people behind the papers' interview. Competing Interests: Competing interests The authors declare no competing or financial interests. (© 2022. Published by The Company of Biologists Ltd.) |
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| فهرسة مساهمة: | Keywords: Arabidopsis thaliana; Amyloplast; Autophagy; Cell separation; Root cap |
| تواريخ الأحداث: | Date Created: 20220429 Date Completed: 20220620 Latest Revision: 20220810 |
| رمز التحديث: | 20221213 |
| مُعرف محوري في PubMed: | PMC9245187 |
| DOI: | 10.1242/dev.200593 |
| PMID: | 35485417 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1477-9129 |
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| DOI: | 10.1242/dev.200593 |