通过转录的负反循环控制状球的发展在Medicago
Qiang Zhang1, Shuangshuang Wang1, Qiujin Xie2
1School of Life Sciences, East China Normal University, 200241, Shanghai, China.
Nature communications
|September 16, 2023
概括
植物通过新的反循环与状菌根菌 (AMF) 控制营养交换. 这种ERM1/WRI5a-ERF12-TOPLESS途径确保了互利共生,以共享必需营养素.
科学领域:
- 植物与微生物的相互作用
- 分子植物科学 分子植物科学
- 协生营养交换的交际营养交换
背景情况:
- 陆地植物与状菌根真菌 (AMF) 形成共生关系.
- AMF为植物提供和,它们反过来接收脂质和糖.
- 动态控制营养交换对于维持共生至关重要.
研究的目的:
- 研究调节植物-AMF共生中的脂质供应和状体发育的分子机制.
- 确定关键的转录因子和参与控制营养交换的调节途径.
主要方法:
- 分析AP2/ERF转录因子MtERM1与MtSTR2和MtSTR促进体中的cis元素结合的分析.
- 研究MtERF12在调节树发育中的作用.
- 描述MtERF12,TOPLESS联合抑制剂和MtERM1/MtWRI5a之间的相互作用.
主要成果:
- MtERM1直接与MtSTR2和MtSTR促进体中的AW-box元素结合,调节脂质流量和状体发育.
- 由MtERM1/MtWRI5a激活的MtERF12对形状的发育产生负面调节.
- MtERF12调用TOPLESS联合抑制剂来抑制MtERM1/MtWRI5a的活动.
结论:
- 一个新的ERM1/WRI5a-ERF12-TOPLESS负反循环控制了植物-AMF共生.
- 这种调节机制使得植物能够微调营养交换.
- 确保与AMF保持互利关系.
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