Abscission zones: cellular interfaces for the programmed separation of organs.

IF 3.6 2区生物学 Q1 PLANT SCIENCES

Annals of botany Pub Date : 2025-09-02 DOI:10.1093/aob/mcaf034

Véronique Pautot, Jennifer Crick, Shelley R Hepworth

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引用次数: 0

Abstract

Background: Abscission zones are specialized sites where plants shed organs, such as leaves, petals or fruits, in response to developmental or environmental signals. These zones form at predictable locations and, once activated, undergo structural and physiological changes that detach the organ and seal the exposed area. During crop domestication, plants that retained ripe fruit or seeds were selected, and abscission traits still influence crop yield and quality today.

Scope: This article reviews the stages of development of abscission zones: initiation, competence, separation and sealing. We combine insights from classic structural and physiological studies with modern genetic and molecular research, focusing on two plant species: Arabidopsis thaliana as a model for floral organ abscission and Solanum lycopersicum as a model for fleshy fruit development.

Conclusions: These studies show that abscission is a conserved but flexible developmental process. We conclude by exploring how these findings are being applied to improve abscission traits in modern agriculture.

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分离区：用于器官程序化分离的细胞界面。

背景：脱落区是植物为响应发育或环境信号而脱落器官（如叶子、花瓣或果实）的特殊部位。这些区域在可预测的位置形成，一旦激活，就会发生结构和生理变化，使器官分离并封闭暴露区域。在作物驯化过程中，保留成熟果实或种子的植物被选择，脱落特性至今仍影响着作物的产量和质量。本文回顾了分离带发展的阶段：起始、能力、分离和密封。我们将经典结构和生理研究的见解与现代遗传和分子研究相结合，重点研究两个植物物种：拟南芥（Arabidopsis thaliana）作为花器官脱落的模型和茄（Solanum lycopersicum）作为肉质果实发育的模型。结论：这些研究表明，脱落是一个保守而灵活的发育过程。最后，我们探讨了如何将这些发现应用于改善现代农业中的脱落性状。

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

Annals of botany 生物-植物科学

CiteScore

7.90

自引率

4.80%

发文量

138

审稿时长

3 months

期刊介绍： Annals of Botany is an international plant science journal publishing novel and rigorous research in all areas of plant science. It is published monthly in both electronic and printed forms with at least two extra issues each year that focus on a particular theme in plant biology. The Journal is managed by the Annals of Botany Company, a not-for-profit educational charity established to promote plant science worldwide. The Journal publishes original research papers, invited and submitted review articles, ''Research in Context'' expanding on original work, ''Botanical Briefings'' as short overviews of important topics, and ''Viewpoints'' giving opinions. All papers in each issue are summarized briefly in Content Snapshots , there are topical news items in the Plant Cuttings section and Book Reviews . A rigorous review process ensures that readers are exposed to genuine and novel advances across a wide spectrum of botanical knowledge. All papers aim to advance knowledge and make a difference to our understanding of plant science.