When flowers fall: Calcium-driven epigenetic silencing links drought to reproductive loss in tomato.

IF 8.7 1区生物学 Q1 CELL BIOLOGY

Developmental cell Pub Date : 2025-10-20 DOI:10.1016/j.devcel.2025.09.014

Keqiang Wu

引用次数: 0

Abstract

In this issue of Developmental Cell, Ge et al. ¹ reveal that drought-induced calcium signaling in tomato activates the SlCBL11-SlCIPK10 complex, which phosphorylates the chromatin protein SlLHP1b. This modification enhances H3K27me3-mediated repression of stamen SlYUC genes, lowering auxin levels and collapsing the abscission zone gradient to trigger flower drop.

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当花朵凋谢：钙驱动的表观遗传沉默将干旱与番茄的繁殖丧失联系起来。

在本期的Developmental Cell杂志上，Ge等人揭示了干旱诱导的番茄钙信号激活SlCBL11-SlCIPK10复合物，该复合物可磷酸化染色质蛋白SlLHP1b。这一修饰增强了h3k27me3介导的雄蕊SlYUC基因的抑制，降低了生长素水平，破坏了脱落带梯度，从而引发了落花。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Developmental cell 生物-发育生物学

CiteScore

18.90

自引率

1.70%

发文量

203

审稿时长

3-6 weeks

期刊介绍： Developmental Cell, established in 2001, is a comprehensive journal that explores a wide range of topics in cell and developmental biology. Our publication encompasses work across various disciplines within biology, with a particular emphasis on investigating the intersections between cell biology, developmental biology, and other related fields. Our primary objective is to present research conducted through a cell biological perspective, addressing the essential mechanisms governing cell function, cellular interactions, and responses to the environment. Moreover, we focus on understanding the collective behavior of cells, culminating in the formation of tissues, organs, and whole organisms, while also investigating the consequences of any malfunctions in these intricate processes.