Brassinosteroid signaling represses ZINC FINGER PROTEIN11 to regulate ovule development in Arabidopsis

胚珠 生物 油菜素甾醇 拟南芥 细胞生物学 拟南芥 转录因子 突变体 遗传学 基因 胚胎
作者
Xin Wang,Jiaxin Liu,Erlei Shang,Amangul Hawar,Toshiro Ito,Bo Sun
出处
期刊:The Plant Cell [Oxford University Press]
标识
DOI:10.1093/plcell/koae273
摘要

Brassinosteroid (BR) signaling and the C-class MADS-box gene AGAMOUS (AG) play important roles in ovule development in Arabidopsis (Arabidopsis thaliana). However, how BR signaling integrates with AG functions to control the female reproductive process remains elusive. Here, we showed that the regulatory role of BR signaling in proper ovule development is mediated by the transcriptional repressor gene ZINC FINGER PROTEIN 11 (ZFP11), which is a direct target of AG. ZFP11 expression initiates from the placenta upon AG induction and becomes prominent in the funiculus of ovule primordia. Plants harboring zfp11 mutations showed reduced placental length with decreased ovule numbers and some aborted ovules. During ovule development, the transcription factor BRASSINAZOLE-RESISTANT 1 (BZR1), which functions downstream of BR signaling, inhibits ZFP11 expression in the chalaza and nucellus. Weakened BR signaling leads to stunted integuments in ovules, resulting from the direct repression of INNER NO OUTER (INO) and WUSCHEL (WUS) by extended ZFP11 expression in the chalaza and nucellus, respectively. In addition, the zfp11 mutant shows reduced sensitivity to BR biosynthesis inhibitors and can rescue outer integument defects in brassinosteroid insensitive 1 (bri1) mutants. Thus, the precise spatial regulation of ZFP11, which is activated by AG in the placenta and suppressed by BR signaling in the central and distal regions of ovules, is essential for ensuring sufficient ovule numbers and proper ovule formation.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
keyana25完成签到,获得积分10
刚刚
eterny完成签到,获得积分10
1秒前
独孤完成签到 ,获得积分10
1秒前
yu发布了新的文献求助10
1秒前
顺心的惜蕊完成签到 ,获得积分10
1秒前
子焱完成签到 ,获得积分10
1秒前
Zesong完成签到,获得积分10
2秒前
爱笑的万天完成签到,获得积分10
3秒前
3秒前
卿卿完成签到,获得积分20
3秒前
3秒前
热泪盈眶完成签到,获得积分10
4秒前
4秒前
123lx完成签到,获得积分10
4秒前
scugy发布了新的文献求助10
5秒前
孤岛完成签到,获得积分10
5秒前
7秒前
三秋应助123456采纳,获得10
7秒前
虎子发布了新的文献求助10
7秒前
7秒前
Kiosta完成签到,获得积分10
7秒前
DOGDAD完成签到,获得积分10
8秒前
酷波er应助卿卿采纳,获得10
8秒前
文艺的青旋完成签到 ,获得积分10
8秒前
9秒前
年轻的青柏完成签到,获得积分10
9秒前
10秒前
清脆南蕾完成签到,获得积分10
10秒前
medzhou完成签到,获得积分10
10秒前
晨曦完成签到,获得积分10
11秒前
哈哈发布了新的文献求助10
11秒前
Salvator完成签到,获得积分10
11秒前
鲨鱼辣椒完成签到,获得积分10
12秒前
今天开心吗完成签到 ,获得积分10
12秒前
12秒前
小一完成签到,获得积分10
13秒前
Kiosta发布了新的文献求助10
14秒前
lisaltp完成签到,获得积分10
14秒前
静静等待完成签到,获得积分10
14秒前
圆圆发布了新的文献求助10
15秒前
高分求助中
【请各位用户详细阅读此贴后再求助】科研通的精品贴汇总(请勿应助) 10000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
International Code of Nomenclature for algae, fungi, and plants (Madrid Code) (Regnum Vegetabile) 500
Maritime Applications of Prolonged Casualty Care: Drowning and Hypothermia on an Amphibious Warship 500
Comparison analysis of Apple face ID in iPad Pro 13” with first use of metasurfaces for diffraction vs. iPhone 16 Pro 500
Towards a $2B optical metasurfaces opportunity by 2029: a cornerstone for augmented reality, an incremental innovation for imaging (YINTR24441) 500
Materials for Green Hydrogen Production 2026-2036: Technologies, Players, Forecasts 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4061661
求助须知:如何正确求助?哪些是违规求助? 3600275
关于积分的说明 11433299
捐赠科研通 3323815
什么是DOI,文献DOI怎么找? 1827483
邀请新用户注册赠送积分活动 897954
科研通“疑难数据库(出版商)”最低求助积分说明 818774