Cell
Abstract
Plants are sessile and have to cope with environmentally induced damage through modification of growth and defense pathways. How tissue regeneration is triggered in such responses and whether this involves stem cell activation is an open question. The stress hormone jasmonate (JA) plays well-established roles in wounding and defense responses. JA also affects growth, which is hitherto interpreted as a trade-off between growth and defense. Here, we describe a molecular network triggered by wound-induced JA that promotes stem cell activation and regeneration. JA regulates organizer cell activity in the root stem cell niche through the RBR-SCR network and stress response protein ERF115. Moreover, JA-induced ERF109 transcription stimulates CYCD6;1 expression, functions upstream of ERF115, and promotes regeneration. Soil penetration and response to nematode herbivory induce and require this JA-mediated regeneration response. Therefore, the JA tissue damage response pathway induces stem cell activation and regeneration and activates growth after environmental stress.
论文编号: | DOI:10.1016/j.cell.2019.03.006 |
论文题目: | A Jasmonate Signaling Network Activates Root Stem Cells and Promotes Regeneration |
英文论文题目: | A Jasmonate Signaling Network Activates Root Stem Cells and Promotes Regeneration |
第一作者: | Wenkun Zhou, Jose L. Lozano-Torres, Ikram Blilou, Xiaoyue Zhang, Qingzhe Zhai, Geert Smant, Chuanyou Li and Ben Scheres |
英文第一作者: | Wenkun Zhou, Jose L. Lozano-Torres, Ikram Blilou, Xiaoyue Zhang, Qingzhe Zhai, Geert Smant, Chuanyou Li and Ben Scheres |
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发表年度: | 2019-04-08 |
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摘要: | Plants are sessile and have to cope with environmentally induced damage through modification of growth and defense pathways. How tissue regeneration is triggered in such responses and whether this involves stem cell activation is an open question. The stress hormone jasmonate (JA) plays well-established roles in wounding and defense responses. JA also affects growth, which is hitherto interpreted as a trade-off between growth and defense. Here, we describe a molecular network triggered by wound-induced JA that promotes stem cell activation and regeneration. JA regulates organizer cell activity in the root stem cell niche through the RBR-SCR network and stress response protein ERF115. Moreover, JA-induced ERF109 transcription stimulates CYCD6;1 expression, functions upstream of ERF115, and promotes regeneration. Soil penetration and response to nematode herbivory induce and require this JA-mediated regeneration response. Therefore, the JA tissue damage response pathway induces stem cell activation and regeneration and activates growth after environmental stress. |
英文摘要: | Plants are sessile and have to cope with environmentally induced damage through modification of growth and defense pathways. How tissue regeneration is triggered in such responses and whether this involves stem cell activation is an open question. The stress hormone jasmonate (JA) plays well-established roles in wounding and defense responses. JA also affects growth, which is hitherto interpreted as a trade-off between growth and defense. Here, we describe a molecular network triggered by wound-induced JA that promotes stem cell activation and regeneration. JA regulates organizer cell activity in the root stem cell niche through the RBR-SCR network and stress response protein ERF115. Moreover, JA-induced ERF109 transcription stimulates CYCD6;1 expression, functions upstream of ERF115, and promotes regeneration. Soil penetration and response to nematode herbivory induce and require this JA-mediated regeneration response. Therefore, the JA tissue damage response pathway induces stem cell activation and regeneration and activates growth after environmental stress. |
刊物名称: | Cell |
英文刊物名称: | Cell |
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其它备注: | Wenkun Zhou, Jose L. Lozano-Torres, Ikram Blilou, Xiaoyue Zhang, Qingzhe Zhai, Geert Smant, Chuanyou Li and Ben Scheres. A Jasmonate Signaling Network Activates Root Stem Cells and Promotes Regeneration. Cell. DOI:10.1016/j.cell.2019.03.006 |
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