对抗性的竞争性结合精细调整了口腔图案
Jin Suk Lee1, Marketa Hnilova2, Michal Maes3
11] Howard Hughes Medical Institute, University of Washington, Seattle, Washington 98195, USA [2] Department of Biology, University of Washington, Seattle, Washington 98195, USA.
Nature
|June 18, 2015
概括
植物表皮造型因子 (EPF) 控制着口腔的发育. 胃膜通过竞争性地与ERECTA (ER) 受体结合,促进胃膜的形成,干扰EPF2抑制.
科学领域:
- 植物生物学 植物生物学
- 分子信号传递是分子信号传递.
- 发育生物学是发展生物学.
背景情况:
- 植物口腔对于气体交换至关重要,并根据位置线索发展.
- 表皮造型因子 (EPF) 是分泌的,调节口腔发育.
- 精确的分子机制,EPFs编排口腔模式的形成并没有完全理解.
研究的目的:
- 阐明Stomagen对口腔发育产生影响的分子机制.
- 为了研究Stomagen,EPF2和ERECTA (ER) 家庭受体激酶之间的相互作用.
- 了解这些相互作用如何调节Arabidopsis的口腔模式.
主要方法:
- 使用结合试验研究的受体相互作用.
- 分析了Stomagen和EPF2对Arabidopsis的口腔发育的影响.
- 检查了下游信号元件的酸化状态,以响应治疗.
主要成果:
- 胃细胞通过与ERECTA (ER) 家庭受体激酶相互作用,促进胃细胞的发育.
- 胃膜竞争性地抑制了EPF2与ER及其共同受体的结合.太多的嘴巴.
- 应用EPF2诱导下游信号元件的快速酸化,而Stomagen没有.
结论:
- 胃膜作为激动剂,而EPF2在口腔发育中起到对抗作用.
- 胃细胞和EPF2对ER受体的竞争性结合微调了胃细胞的模式.
- 这项研究揭示了诱导和抑制信号如何调节植物组织模式的分子机制.
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