Nitric oxide is involved in hemin-induced cucumber adventitious rooting process

Journal of Plant Physiology
Wei XuanJin Cui

Abstract

Hemin, a heme oxygenase-1 (HO-1) inducer, was shown to exert numerous beneficial physiological functions in animals. Our previous study suggests that HO-1/carbon monoxide (CO) acts as a novel downstream signal system in the auxin-induced adventitious rooting. The objective of this study was to test whether nitric oxide (NO) is involved in hemin-induced cucumber adventitious rooting. Applications of hemin or CO aqueous solution to auxin-depleted cucumber explant induced up-regulation of cucumber HO-1 transcripts (CsHO1), NO production, and thereafter adventitious root formation, and some above responses were blocked by the combination treatment with two nitric oxide synthase (NOS)-like enzyme inhibitors N(G)-nitro-L-arginine methylester hydrochloride and N(G)-nitro-L-arginine, a HO-1 specific inhibitor zinc protoporphyrin IX, and a specific NO scavenger 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide potassium salt. However, these blocking responses were not observed using tungstate, an inhibitor of nitrate reductase, another NO producing enzyme in plants. Furthermore, the guanylate cyclase inhibitors 1H-(1,2,4)-oxadiazole[4,3-a]quinoxalin-1-one and 6-anilino-5,8-quinolinedione reduced root development induced ...Continue Reading

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Citations

Jan 29, 2013·Plant Science : an International Journal of Experimental Plant Biology·Carlos García-Mata, Lorenzo Lamattina
Mar 25, 2016·Journal of Plant Physiology·Yongchao ZhuXin Jin
May 21, 2016·Frontiers in Plant Science·Meng Wang, Weibiao Liao
May 21, 2016·Frontiers in Plant Science·Inonge Gross, Jörg Durner
May 14, 2016·Plant Signaling & Behavior·Yongchao Zhu, Weibiao Liao
Nov 25, 2016·Physiologia Plantarum·Fang QiWenbiao Shen
Oct 31, 2019·International Journal of Molecular Sciences·Lijuan NiuYue Wu
Sep 27, 2018·BMC Plant Biology·Yihua ZhangYaowen Zhang
Aug 31, 2019·Biomolecules·Yuzheng DengWeibiao Liao
Nov 26, 2020·Environmental Science and Pollution Research International·Tao WangJin Cui
Nov 17, 2021·Journal of Zhejiang University. Science. B·Meilin CuiYouwei Yu

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