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The Nitrification Inhibitor Methyl 3-(4-Hydroxyphenyl)Propionate Modulates Root Development by Interfering with Auxin Signaling via the NO/ROS Pathway
Liu, Yangyang; Wang, Ruling; Zhang, Ping; ...; Xu, Jin
2016
Source PublicationPLANT PHYSIOLOGY
Volume171Issue:3Pages:1686-1703
AbstractMethyl 3-(4-hydroxyphenyl)propionate (MHPP) is a root exudate that functions as a nitrification inhibitor and as a modulator of the root system architecture (RSA) by inhibiting primary root (PR) elongation and promoting lateral root formation. However, the mechanism underlying MHPP-mediated modulation of the RSA remains unclear. Here, we report that MHPP inhibits PR elongation in Arabidopsis (Arabidopsis thaliana) by elevating the levels of auxin expression and signaling. MHPP induces an increase in auxin levels by up-regulating auxin biosynthesis, altering the expression of auxin carriers, and promoting the degradation of the auxin/indole-3-acetic acid family of transcriptional repressors. We found that MHPP-induced nitric oxide (NO) production promoted reactive oxygen species (ROS) accumulation in root tips. Suppressing the accumulation of NO or ROS alleviated the inhibitory effect of MHPP on PR elongation by weakening auxin responses and perception and by affecting meristematic cell division potential. Genetic analysis supported the phenotype described above. Taken together, our results indicate that MHPP modulates RSA remodeling via the NO/ROS-mediated auxin response pathway in Arabidopsis. Our study also revealed that MHPP significantly induced the accumulation of glucosinolates in roots, suggesting the diverse functions of MHPP in modulating plant growth, development, and stress tolerance in plants.
KeywordStem-cell Niche Nitric-oxide Plays Arabidopsis Root Meristem Size Transcriptional Regulation Aux/iaa Proteins Oxidative Stress Solanum-nigrum Growth Accumulation
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10028
Collection2012年后新成立研究组
Recommended Citation
GB/T 7714
Liu, Yangyang,Wang, Ruling,Zhang, Ping,et al. The Nitrification Inhibitor Methyl 3-(4-Hydroxyphenyl)Propionate Modulates Root Development by Interfering with Auxin Signaling via the NO/ROS Pathway[J]. PLANT PHYSIOLOGY,2016,171(3):1686-1703.
APA Liu, Yangyang,Wang, Ruling,Zhang, Ping,...,&Xu, Jin.(2016).The Nitrification Inhibitor Methyl 3-(4-Hydroxyphenyl)Propionate Modulates Root Development by Interfering with Auxin Signaling via the NO/ROS Pathway.PLANT PHYSIOLOGY,171(3),1686-1703.
MLA Liu, Yangyang,et al."The Nitrification Inhibitor Methyl 3-(4-Hydroxyphenyl)Propionate Modulates Root Development by Interfering with Auxin Signaling via the NO/ROS Pathway".PLANT PHYSIOLOGY 171.3(2016):1686-1703.
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