Light-stabilized GIL1 suppresses PIN3 activity to inhibit hypocotyl gravitropism

IF 9.3 1区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Journal of Integrative Plant Biology Pub Date : 2024-07-11 DOI:10.1111/jipb.13736
Xiaolian Wang, Yanfang Yuan, Laurence Charrier, Zhaoguo Deng, Markus Geisler, Xing Wang Deng, Haodong Chen
{"title":"Light-stabilized GIL1 suppresses PIN3 activity to inhibit hypocotyl gravitropism","authors":"Xiaolian Wang,&nbsp;Yanfang Yuan,&nbsp;Laurence Charrier,&nbsp;Zhaoguo Deng,&nbsp;Markus Geisler,&nbsp;Xing Wang Deng,&nbsp;Haodong Chen","doi":"10.1111/jipb.13736","DOIUrl":null,"url":null,"abstract":"<p>Light and gravity coordinately regulate the directional growth of plants. Arabidopsis Gravitropic in the Light 1 (GIL1) inhibits the negative gravitropism of hypocotyls in red and far-red light, but the underlying molecular mechanisms remain elusive. Our study found that GIL1 is a plasma membrane-localized protein. In endodermal cells of the upper part of hypocotyls, GIL1 controls the negative gravitropism of hypocotyls. GIL1 directly interacts with PIN3 and inhibits the auxin transport activity of PIN3. Mutation of <i>PIN3</i> suppresses the abnormal gravitropic response of <i>gil1</i> mutant. The GIL1 protein is unstable in darkness but it is stabilized by red and far-red light. Together, our data suggest that light-stabilized GIL1 inhibits the negative gravitropism of hypocotyls by suppressing the activity of the auxin transporter PIN3, thereby enhancing the emergence of young seedlings from the soil.</p>","PeriodicalId":195,"journal":{"name":"Journal of Integrative Plant Biology","volume":null,"pages":null},"PeriodicalIF":9.3000,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jipb.13736","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Integrative Plant Biology","FirstCategoryId":"99","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jipb.13736","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Light and gravity coordinately regulate the directional growth of plants. Arabidopsis Gravitropic in the Light 1 (GIL1) inhibits the negative gravitropism of hypocotyls in red and far-red light, but the underlying molecular mechanisms remain elusive. Our study found that GIL1 is a plasma membrane-localized protein. In endodermal cells of the upper part of hypocotyls, GIL1 controls the negative gravitropism of hypocotyls. GIL1 directly interacts with PIN3 and inhibits the auxin transport activity of PIN3. Mutation of PIN3 suppresses the abnormal gravitropic response of gil1 mutant. The GIL1 protein is unstable in darkness but it is stabilized by red and far-red light. Together, our data suggest that light-stabilized GIL1 inhibits the negative gravitropism of hypocotyls by suppressing the activity of the auxin transporter PIN3, thereby enhancing the emergence of young seedlings from the soil.

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
光稳定的 GIL1 可抑制 PIN3 的活性,从而抑制下胚轴的向心力。
光和重力协调调节植物的定向生长。拟南芥光下引力1(GIL1)能抑制下胚轴在红光和远红光下的负向引力,但其潜在的分子机制仍然难以捉摸。我们的研究发现,GIL1 是一种质膜定位蛋白。在下胚轴上部的内皮细胞中,GIL1 控制着下胚轴的负向引力。GIL1 直接与 PIN3 相互作用,抑制 PIN3 的植物生长素转运活性。突变 PIN3 可抑制 gil1 突变体的异常引力反应。GIL1 蛋白在黑暗条件下不稳定,但在红光和远红光下稳定。我们的数据表明,光稳定的 GIL1 通过抑制辅素转运体 PIN3 的活性来抑制下胚轴的负向引力,从而提高幼苗的出土率。
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 去求助
来源期刊
Journal of Integrative Plant Biology
Journal of Integrative Plant Biology 生物-生化与分子生物学
CiteScore
18.00
自引率
5.30%
发文量
220
审稿时长
3 months
期刊介绍: Journal of Integrative Plant Biology is a leading academic journal reporting on the latest discoveries in plant biology.Enjoy the latest news and developments in the field, understand new and improved methods and research tools, and explore basic biological questions through reproducible experimental design, using genetic, biochemical, cell and molecular biological methods, and statistical analyses.
期刊最新文献
Zinc finger transcription factors BnaSTOP2s regulate sulfur metabolism and confer Sclerotinia sclerotiorum resistance in Brassica napus. Recognition of a salivary effector by the TNL protein RCSP promotes effector-triggered immunity and systemic resistance in Nicotiana benthamiana. The MON1-CCZ1 complex plays dual roles in autophagic degradation and vacuolar protein transport in rice. The OsMAPK5-OsWRKY72 module negatively regulates grain length and grain weight in rice. More than flowering: CONSTANS plays multifaceted roles in plant development and stress responses.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1