PROCERA interacts with JACKDAW in gibberellin-enhanced source-sink sucrose partitioning in tomato

IF 6.5 1区生物学 Q1 PLANT SCIENCES

Plant Physiology Pub Date : 2025-01-17 DOI:10.1093/plphys/kiaf024

Yufei Liang, Jingyi Zhao, Rui Yang, Jiayu Bai, Wanxing Hu, Lixia Gu, Zhaoyuan Lian, Heqiang Huo, Jia Guo, Haijun Gong

{"title":"PROCERA interacts with JACKDAW in gibberellin-enhanced source-sink sucrose partitioning in tomato","authors":"Yufei Liang, Jingyi Zhao, Rui Yang, Jiayu Bai, Wanxing Hu, Lixia Gu, Zhaoyuan Lian, Heqiang Huo, Jia Guo, Haijun Gong","doi":"10.1093/plphys/kiaf024","DOIUrl":null,"url":null,"abstract":"Proper regulation of the source-sink relationship is an effective way to increase crop yield. Gibberellin (GA) is an important regulator of plant growth and development, and physiological evidence has demonstrated that GA can promote source-sink sucrose partitioning. However, the underlying molecular mechanism remains unclear. Here, we used a combination of physiological and molecular approaches to identify the components involved in GA-enhanced source-sink sucrose partitioning in tomato (Solanum lycopersicum). GA treatment increased the sucrose export rate from source leaves and the sucrose level in young leaves (sink organ). GA-mediated enhancement of source-sink sucrose partitioning depended on SlPROCERA (SlPRO), the DELLA protein in tomato. Sucrose transporter 1 (SlSUT1) was involved in phloem sucrose loading. SlJACKDAW (SlJKD) was identified as an interaction partner of SlPRO. SlJKD negatively regulated the sucrose export rate from source leaves and could directly bind to the promoter of SlSUT1 and repress its expression, while SlPRO enhanced the transcription repression function of SlJKD. This study reveals the molecular mechanism by which GA promotes source-sink sucrose partitioning in tomato and provides potential targets for source-sink relationship optimization.","PeriodicalId":20101,"journal":{"name":"Plant Physiology","volume":"37 1","pages":""},"PeriodicalIF":6.5000,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plant Physiology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1093/plphys/kiaf024","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

Proper regulation of the source-sink relationship is an effective way to increase crop yield. Gibberellin (GA) is an important regulator of plant growth and development, and physiological evidence has demonstrated that GA can promote source-sink sucrose partitioning. However, the underlying molecular mechanism remains unclear. Here, we used a combination of physiological and molecular approaches to identify the components involved in GA-enhanced source-sink sucrose partitioning in tomato (Solanum lycopersicum). GA treatment increased the sucrose export rate from source leaves and the sucrose level in young leaves (sink organ). GA-mediated enhancement of source-sink sucrose partitioning depended on SlPROCERA (SlPRO), the DELLA protein in tomato. Sucrose transporter 1 (SlSUT1) was involved in phloem sucrose loading. SlJACKDAW (SlJKD) was identified as an interaction partner of SlPRO. SlJKD negatively regulated the sucrose export rate from source leaves and could directly bind to the promoter of SlSUT1 and repress its expression, while SlPRO enhanced the transcription repression function of SlJKD. This study reveals the molecular mechanism by which GA promotes source-sink sucrose partitioning in tomato and provides potential targets for source-sink relationship optimization.

查看原文本刊更多论文

PROCERA与JACKDAW在赤霉素增强的番茄源库蔗糖分配中的相互作用

合理调节源库关系是提高作物产量的有效途径。赤霉素（Gibberellin， GA）是植物生长发育的重要调节剂，生理证据表明赤霉素能促进源库蔗糖分配。然而，潜在的分子机制尚不清楚。本研究采用生理和分子相结合的方法鉴定了ga增强番茄源库蔗糖分配的相关成分。赤霉素处理提高了源叶蔗糖输出率和幼叶（汇器官）蔗糖水平。ga介导的源库蔗糖分配增强依赖于番茄DELLA蛋白SlPROCERA （SlPRO）。蔗糖转运蛋白1 （SlSUT1）参与韧皮部蔗糖的装载。SlJACKDAW （SlJKD）被确定为SlPRO的交互伙伴。SlJKD负向调控源叶蔗糖输出速率，可直接结合SlSUT1启动子抑制其表达，而SlPRO增强了SlJKD的转录抑制功能。本研究揭示了遗传基因促进番茄源库蔗糖分配的分子机制，为源库关系优化提供了潜在靶点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Plant Physiology 生物-植物科学

CiteScore

12.20

自引率

5.40%

发文量

535

审稿时长

2.3 months

期刊介绍： Plant Physiology® is a distinguished and highly respected journal with a rich history dating back to its establishment in 1926. It stands as a leading international publication in the field of plant biology, covering a comprehensive range of topics from the molecular and structural aspects of plant life to systems biology and ecophysiology. Recognized as the most highly cited journal in plant sciences, Plant Physiology® is a testament to its commitment to excellence and the dissemination of groundbreaking research. As the official publication of the American Society of Plant Biologists, Plant Physiology® upholds rigorous peer-review standards, ensuring that the scientific community receives the highest quality research. The journal releases 12 issues annually, providing a steady stream of new findings and insights to its readership.