Nitric oxide generated by nitrate reductase increases nitrogen uptake capacity by inducing lateral root formation and inorganic nitrogen uptake under partial nitrate nutrition in rice

Journal of Experimental Botany
Huwei SunYali Zhang

Abstract

Increasing evidence shows that partial nitrate nutrition (PNN) can be attributed to improved plant growth and nitrogen-use efficiency (NUE) in rice. Nitric oxide (NO) is a signalling molecule involved in many physiological processes during plant development and nitrogen (N) assimilation. It remains unclear whether molecular NO improves NUE through PNN. Two rice cultivars (cvs Nanguang and Elio), with high and low NUE, respectively, were used in the analysis of NO production, nitrate reductase (NR) activity, lateral root (LR) density, and (15)N uptake under PNN, with or without NO production donor and inhibitors. PNN increased NO accumulation in cv. Nanguang possibly through the NIA2-dependent NR pathway. PNN-mediated NO increases contributed to LR initiation, (15)NH₄(+)/(15)NO₃(-) influx into the root, and levels of ammonium and nitrate transporters in cv. Nanguang but not cv. Elio. Further results revealed marked and specific induction of LR initiation and (15)NH₄(+)/(15)NO₃(-) influx into the roots of plants supplied with NH₄(+)+sodium nitroprusside (SNP) relative to those supplied with NH₄(+) alone, and considerable inhibition upon the application of cPTIO or tungstate (NR inhibitor) in addition to PNN, which is in agreement...Continue Reading

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Citations

Jan 1, 2015·Plants·Ana Paez-GarciaMaria J Monteros
Dec 1, 2015·Frontiers in Plant Science·Marcela SimontacchiGuillermo E Santa-María
Apr 20, 2016·Frontiers in Plant Science·Elise ThalineauSylvain Jeandroz
Dec 28, 2016·Plant Signaling & Behavior·Huwei SunYali Zhang
Oct 4, 2017·International Journal of Molecular Sciences·Zeyu CaoWenbiao Shen
Mar 25, 2019·Journal of Experimental Botany·Agustina BuetMarcela Simontacchi
Nov 19, 2015·Frontiers in Plant Science·Emanuel Sanz-LuqueEmilio Fernandez
Nov 19, 2015·Frontiers in Plant Science·M I R KhanNafees A Khan
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Jul 23, 2020·Frontiers in Plant Science·Maria Dolores PissolatoRafael V Ribeiro
Jun 8, 2018·Frontiers in Plant Science·Huwei SunQuanzhi Zhao
Jul 12, 2017·Frontiers in Plant Science·Songwei WuXuecheng Sun
Apr 20, 2017·Frontiers in Plant Science·Cui-Hui SunDa-Gang Hu
Oct 20, 2019·International Journal of Molecular Sciences·Huwei SunYali Zhang
Mar 7, 2021·Plants·Kamolchanok UmnajkitikornNeung Teaumroong
Feb 7, 2021·The Plant Journal : for Cell and Molecular Biology·Huwei SunQuanzhi Zhao
Apr 2, 2021·Horticulture Research·Chengliang SunXianyong Lin
Aug 22, 2021·Trends in Plant Science·Vipul MishraVijay Pratap Singh

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Methods Mentioned

BETA
transgenic
PCR
GTPase

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