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Trichome development of systemic developing leaves is regulated by a nutrient sensor-relay mechanism within mature leaves

文献类型： 外文期刊

作者： Wei, Yu-ting 1 ; Bao, Qin-Xin 1 ; Shi, Ya-Na 3 ; Mu, Xin-Rong 2 ; Wang, Yi-Bo 1 ; Jiang, Ji-Hong 2 ; Yu, Fu-Huan 2 ; Meng, Lai-Sheng 1 ;

作者机构： 1.Tianshui Normal Univ, Coll Bioengn & Biotechnol, Tianshui 741600, Gansu, Peoples R China

2.Jiangsu Normal Univ, Sch Life Sci, Xuzhou 221116, Jiangsu, Peoples R China

3.Yunnan Acad Agr Sci, Inst Med Plants, Kunming 650201, Peoples R China

期刊名称：SCIENCE ADVANCES （ 影响因子：12.5； 五年影响因子：14.1 ）

ISSN： 2375-2548

年卷期： 2025 年 11 卷 6 期

页码：

收录情况： SCI

摘要： Trichome initiation and development is regulated by a diverse range of environmental signals. However, how leaf carbohydrate status determines the trichome initiation and development of systemic developing leaves remains unclear. Here, we found that a specific organ (such as a mature leaf) could function as a nutrient sensor, subsequently promoting or suppressing nonautonomous regulation of trichome initiation and development in response to alternations in nutrient levels. This physical phenomenon was regulated by a sucrose -> ACS7 -> ethylene -> EIN3 -> SUC4 -> sucrose pathway in mature leaves, with a remote control of trichome production in newly developing leaves via a sucrose -> ACS7 -> ethylene -> EIN3 -> TTG1 pathway. These data provide insights into how mature leaves function as nutrient sensors that control trichome formation within distant developing leaves through a nutrient sensor-relay mechanism. Our findings uncover both a previously unidentified, nutrient sensing-regulatory mechanism and the cognate underpinning molecular architecture.

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