H2O2 response gene 1/2 are novel sensors or responders of H2O2 and involve in maintaining embryonic root meristem activity in Arabidopsis thaliana

生物 分生组织 拟南芥 拟南芥 胚胎干细胞 植物 基因 细胞生物学 遗传学 突变体
作者
Feng Gong,Yingping Zhuang,Yi Liu,Mingwei Sun,Xiongbo Peng
出处
期刊:Plant Science [Elsevier]
卷期号:310: 110981-110981 被引量:11
标识
DOI:10.1016/j.plantsci.2021.110981
摘要

• H2O2 Response Gene ( HRG ) 1 and 2 are novel H 2 O 2 responders. • HRGs are only active upon H 2 O 2 stress. • HRGs involve in ROS removal. • HRGs pathway regulates embryonic root meristem activity. Signal molecule hydrogen peroxide (H 2 O 2 ) plays critical roles in various processes of plant development. However, H 2 O 2 signaling network, especially the responders that sense and respond to the H 2 O 2 signal remain largely unknown. Here we report two homologous genes H 2 O 2 Response Gene 1 and 2 (HRG1/2) in Arabidopsis that could quickly respond to exogenous or endogenous H 2 O 2 . Knockdown of HRG1/2 facilitated seed germination while overexpression of HRG1/2 greatly retarded seed germination. ROS level in HRG1 overexpression roots was significantly lower than that in HRG1/2 mutants after H 2 O 2 treatment. The expression level of enzymatic antioxidant DHAR3 was upregulated in HRG1 overexpression plants, suggesting that DHAR3 is downstream of HRG1. That the root meristem length and cell number were significantly reduced in hrg1-1 and hrg2-1 plants upon H 2 O 2 treatment compared to that of HRG1 overexpression plants also approves the idea that HRGs function in H 2 O 2 removal. Further evolutionary analysis indicates that this is a dicotyledon-specific pathway responsive to H 2 O 2 . Together, this work reveals HRG1/2 as novel H 2 O 2 responders involved in ROS scavenging to ensure embryonic root meristem activity. These findings provide valuable clues for the of H 2 O 2 signaling and root meristem regulation.
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
大幅提高文件上传限制,最高150M (2024-4-1)

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
RuiminXie完成签到,获得积分20
1秒前
传奇3应助114514采纳,获得10
1秒前
1秒前
fei发布了新的文献求助10
1秒前
充电宝应助Jane采纳,获得30
3秒前
3秒前
4秒前
4秒前
4秒前
4秒前
5秒前
tianle发布了新的文献求助30
5秒前
6秒前
huya完成签到,获得积分10
6秒前
英俊的火龙果完成签到,获得积分10
7秒前
7秒前
领导范儿应助快乐的一刀采纳,获得10
7秒前
完美世界应助快乐的一刀采纳,获得10
7秒前
小马甲应助快乐的一刀采纳,获得10
7秒前
酷波er应助快乐的一刀采纳,获得10
7秒前
7秒前
8秒前
善良夜梅发布了新的文献求助10
8秒前
8秒前
凯文发布了新的文献求助10
8秒前
li发布了新的文献求助10
8秒前
Jason完成签到,获得积分10
9秒前
风禾发布了新的文献求助10
9秒前
Anthony_潇完成签到,获得积分10
9秒前
EtAior完成签到,获得积分10
10秒前
打打应助坚定紫山采纳,获得10
10秒前
英姑应助NingnnnZhang采纳,获得10
11秒前
诗诗发布了新的文献求助10
11秒前
11秒前
汉堡包应助cphhu采纳,获得10
12秒前
12秒前
CipherSage应助RuiminXie采纳,获得10
12秒前
不潮薯饼应助笔记本采纳,获得50
12秒前
飞鱼发布了新的文献求助10
13秒前
mikasa发布了新的文献求助10
13秒前
高分求助中
The late Devonian Standard Conodont Zonation 2000
Nickel superalloy market size, share, growth, trends, and forecast 2023-2030 2000
The Lali Section: An Excellent Reference Section for Upper - Devonian in South China 1500
Very-high-order BVD Schemes Using β-variable THINC Method 870
Mantiden: Faszinierende Lauerjäger Faszinierende Lauerjäger 800
PraxisRatgeber: Mantiden: Faszinierende Lauerjäger 800
Fundamentals of Dispersed Multiphase Flows 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 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 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3254658
求助须知:如何正确求助?哪些是违规求助? 2896872
关于积分的说明 8294754
捐赠科研通 2565788
什么是DOI,文献DOI怎么找? 1393363
科研通“疑难数据库(出版商)”最低求助积分说明 652508
邀请新用户注册赠送积分活动 630044