Enhanced meristem development, tolerance to oxidative stress and hyposensitivity to nitric oxide in the hypermorphic vq10‐H mutant in AtVQ10 gene

Author:

Gayubas Beatriz1,Castillo Mari‐Cruz1,Ramos Sara1,León José1ORCID

Affiliation:

1. Instituto de Biología Molecular y Celular de Plantas (Consejo Superior de Investigaciones Científicas—Universidad Politécnica de Valencia) Valencia Spain

Abstract

AbstractNitric oxide (NO) and reactive oxygen are common factors in multiple plant responses to stress, and their involvement in hypoxia‐triggered responses is key to ensure growth under adverse environmental conditions. Here, we analyse the regulatory functions exerted by hypoxia‐, NO‐ and oxidative stress‐inducible Arabidopsis gene coding for the VQ motif‐containing protein 10 (VQ10). A hypermorphic vq10‐H mutant allowed identifying VQ10‐exerted regulation on root and shoot development as well as its role in regulating responses to NO and oxidative stress. Enhanced VQ10 expression in vq10‐H plants led to enhanced elongation of the primary root, and increased root cell division and meristem size during early postgermination development. In shoots, VQ10 activation of cell division was counteracted by WRKY33‐exerted repression, thus leading to a dwarf bushy phenotype in plants with enhanced VQ10 expression in a wrky33 knock‐out background. Low number of differentially expressed genes were identified when vq10‐H versus Col‐0 plants were compared either under normoxia or hypoxia. vq10‐H and VQ10ox plants displayed less tolerance to submergence but, in turn, were more tolerant to oxidative stress and less sensitive to NO than wild‐type plants. VQ10 could be a node integrating redox‐related regulation on development and stress responses.

Publisher

Wiley

Subject

Plant Science,Physiology

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3