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Updated: Feb 20, 2026

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TCP15和PIF4准硫编码基因GOLVEN1/CLE-LIKE6,以抑制安托西亚宁积累

Rocío M Jure¹, Ivana L Viola¹, Daniel H Gonzalez¹

¹Instituto de Agrobiotecnología del Litoral (CONICET-UNL), Cátedra de Biología Celular y Molecular, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina.

Plant, cell & environment

|February 19, 2026

概括

植物转录因子TCP15和PIF4通过激活GLV1/CLEL6,一个关键抑制剂来抑制安托氨酸合成. 这些因素显示了功能上的相互依赖性和参与吉伯雷林信号传递对安托素调节的参与.

科学领域:

植物分子生物学植物分子生物学
植物生理学植物生理学
转录法规转录法规

背景情况:

氨酸是植物颜料,对应激反应至关重要.
安托亚宁合成是由复杂的转录网络调节的.
识别关键的调节者对于理解植物适应是必不可少的.

研究的目的:

阐明TCP15和PIF4在氨酸生物合成调节中的作用.
为了研究TCP15和PIF4控制安素水平的分子机制.
探索TCP15,PIF4和抑制器GLV1/CLEL6.6之间的关系.

主要方法:

对Arabidopsis thaliana中的基因表达的分析.
发起者-报告员测试以评估转录激活.
染色体免疫沉以研究转录因子结合.
突变分析以调查功能相互依赖.

主要成果:

TCP15和PIF4直接诱导GLV1/CLEL6的表达,GLV1/CLEL6是氨酸合成的抑制剂.
TCP15和PIF4与GLV1/CLEL6促进体结合,激活其表达.
PIF4绑定取决于TCP15和TCP14,而TCP15激活需要PIF功能.
TCP15和PIF4参与了依赖吉伯雷林的抑制安素生物合成.

结论:

TCP15和PIF4充当Arabidopsis中安托氨酸合成的负调节剂.
在调节GLV1/CLEL6.1方面,TCP15和PIF4之间存在功能性相互依赖.
这些发现揭示了对控制安托素积累的分子机制的新见解.

关键词:

在TCP转录因子.安托西安尼尼 (anthocyanin) 是一种阿拉比多普西斯 (Arabidopsis) 是一种植物.吉伯勒林林林林林林林林林林林林林林林林林林林林林植物染色体相互作用因子转录规则转录规则转录规则

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