山西农业大学学报（自然科学版）2017，Vol.37Issue(12)：849-853,5.
一氧化氮参与调控镧诱导的拟南芥主根生长的生理与分子机理
Physiological and molecular mechanisms of nitric oxide in Lanthanum-modulated primary root growth in Arabidopsis
摘要
Abstract
[Objective]Lanthanum (La) is one of rare earth elements that La represses primary root (PR) elongation by inducing ROS accumulation in root tips.The aim of the present study was to elucidate whether and how NO was also involved in La-mediated root system architecture remodeling (RSA) remain unclear.[Methods]For this purpose,we analyzed La-induced NO accumulation and its roles in modulating PR growth by integrating physiological studies and genetic analyses.[Results]Ourresult indicated that inhibition of NO accumulation alleviated the inhibitory effects of La on PR elongation.Genetics analysis using NO-defective mutant noal supported theresult.Inhibition of NO production did not affect the ROS levels,and inhibition of ROS production did not affect the NO levels.[Conclusion]The result indicated that NO and ROS signaling pathways function to modulate RSA through mutually independent pathways.关键词
镧/一氧化氮/活性氧/主根生长/拟南芥Key words
Lanthanum/Nitric oxide/Reactive oxygen species/Primary root growth/Arabidopsis分类
农业科技引用本文复制引用
孙亮亮,刘阳阳,张苹,王如玲,马金虎,徐进..一氧化氮参与调控镧诱导的拟南芥主根生长的生理与分子机理[J].山西农业大学学报（自然科学版）,2017,37(12):849-853,5.基金项目
国家自然科学基金(31272239) （31272239）
国家重点研发计划(2016YFC0501901) （2016YFC0501901）
云南省中青年学术带头人后备人才项目(2014HB043) （2014HB043）
