Nitric oxide is involved in methane‐induced adventitious root formation in cucumber

Fang, Qi; Xiang, Zhixin; Kou, Ninghai; Cui, Weiti; Xu, Daokun; Ren, Wei; Zhu, Dan; Shen, Wenbiao

doi:10.1111/ppl.12531

Cited by 52 publications

(41 citation statements)

References 45 publications

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“…Cross sections (3 mm thick) were cut from stems of viruliferous or nonviruliferous SBPH-inoculated rice plants, infiltrated with an NO fluorescent probe (10 μM 4amino-5-methyl-amino-2′,7′-di-fluorofluorescein diacetate [DAF-FM DA]) diluted in a 20 mM Hepes-NaOH buffer, pH 7.2, followed by 15 min incubation in the dark [27,28].…”

Section: Quantification Of No Content By Laser Scanning Confocal Micrmentioning

confidence: 99%

Melatonin is responsible for rice resistance to rice stripe virus infection through a nitric oxide-dependent pathway

Liu

Shao

et al. 2019

Virol J

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Rice stripe virus (RSV) causes one of the most important rice virus diseases of plants in East Asia. However, the molecular mechanisms controlling rice resistance to RSV infection are largely unknown. Recently, several studies presented a novel model that melatonin (MT) and nitric oxide (NO) participate in the plant-pathogen interaction in a synergetic manner. In this study, there was a difference in MT content between two rice varieties that correlated with one being susceptible and one being resistant to RSV, which suggested that MT is related to RSV resistance. In addition, a test with two NO biosynthesis inhibitors revealed that NO inhibitor were able to increase the disease incidence of RSV. A pharmacological experiment with exogenous MT and NO showed that increased MT and NO in the MT-pretreated plants led to lower disease incidences; however, only NO increased in a NO-releasing reagent [sodium nitroprusside (SNP)] pretreated plants. The expressions level of OsPR1b and OsWRKY 45 were significantly induced by MT and NO. These results suggest that rice resistance to RSV can be improved by increased MT through a NO-dependent pathway.

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Section: Quantification Of No Content By Laser Scanning Confocal Micrmentioning

confidence: 99%

Melatonin is responsible for rice resistance to rice stripe virus infection through a nitric oxide-dependent pathway

Liu

Shao

et al. 2019

Virol J

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“…Among these, NO, a free radical gas, has been shown to have multiple physiological functions in plants [28,29]. Besides the enhancement of plant adaptation against stresses, the functions of NO include the promotion of root hair development, adventitious rooting, and lateral root formation [30][31][32][33], although the enzymatic resource(s) of NO biosynthesis in those aforesaid processes remains elusive. In animals, the synthesis of NO from L-arginine is catalyzed by the heme-containing enzyme nitric oxide synthase (NOS) [34].…”

Section: Introductionmentioning

confidence: 99%

A Novel Mechanism Underlying Multi-walled Carbon Nanotube-Triggered Tomato Lateral Root Formation: the Involvement of Nitric Oxide

et al. 2020

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Abundant studies revealed that multi-walled carbon nanotubes (MWCNTs) are toxic to plants. However, whether or how MWCNTs influence lateral root (LR) formation, which is an important component of the adaptability of the root system to various environmental cues, remains controversial. In this report, we found that MWCNTs could enter into tomato seedling roots. The administration with MWCNTs promoted tomato LR formation in an approximately dose-dependent fashion. Endogenous nitric oxide (NO) production was triggered by MWCNTs, confirmed by Greiss reagent method, electron paramagnetic resonance (EPR), and laser scanning confocal microscopy (LSCM), together with the scavenger of NO. A cause-effect relationship exists between MWCNTs and NO in the induction of LR development, since MWCNT-triggered NO synthesis and LR formation were obviously blocked by the removal of endogenous NO with its scavenger. The activity of NO generating enzyme nitrate reductase (NR) was increased in response to MWCNTs. Tungstate inhibition of NR not only impaired NO production, but also abolished LR formation triggered by MWCNTs. The addition of N G-nitro-L-arginine methyl ester (L-NAME), an inhibitor of mammalian nitric oxide synthase (NOS)-like enzyme, failed to influence LR formation. Collectively, we proposed that NO might act as a downstream signaling molecule in MWCNT control of LR development, at least partially via NR.

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“…BR Z reduced the production of NO and activities of NOS-like and NR, and its effect was timedependent. Previous studies also showed that methane (CH 4 ) triggered the accumulation of NO in cucumber during adventitious root formation [57]. Ethephon treatments induced the increase of endogenous NO level and significantly improved activities of NOS-like and NR during adventitious rooting [58].…”

Section: Discussionmentioning

confidence: 93%

Nitric oxide is involved in the brassinolide-induced adventitious root development in cucumber

Liao

et al. 2020

BMC Plant Biol

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Background: Brassinolide (BR), as a new type of plant hormones, is involved in the processes of plant growth and stress response. Previous studies have reported the roles of BR in regulating plant developmental processes and also response tolerance to abiotic stresses in plants. The main purpose of our study was to explore whether nitric oxide (NO) plays a role in the process of BR-induced adventitious root formation in cucumber (Cucumis sativus L.).Results: Exogenous application of 1 μM BR significantly promoted adventitious rooting, while high concentrations of BR (2-8 μM) effectively inhibited adventitious rooting. NO donor (S-nitroso-N-acerylpenicillamine, SNAP) promoted the occurrence of adventitious roots. Simultaneously, BR and SNAP applied together significantly promoted adventitious rooting and the combined effect was superior to the application of BR or SNAP alone. Moreover, NO scavenger (c-PTIO) and inhibitors (L-NAME and Tungstate) inhibited the positive effects of BR on adventitious rooting. BR at 1 μM also increased endogenous NO content, NO synthase (NOS-like) and Nitrate reductase (NR) activities, while BRz (a specific BR biosynthesis inhibitor) decreased these effects. In addition, the relative expression level of NR was up-regulated by BR and SNAP, whereas BRz down-regulated it. The application of NO inhibitor (Tungstate) in BR also inhibited the up-regulation of NR.Conclusion: BR promoted the formation of adventitious roots by inducing the production of endogenous NO in cucumber.

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Nitric oxide is involved in methane‐induced adventitious root formation in cucumber

Cited by 52 publications

References 45 publications

Melatonin is responsible for rice resistance to rice stripe virus infection through a nitric oxide-dependent pathway

Melatonin is responsible for rice resistance to rice stripe virus infection through a nitric oxide-dependent pathway

A Novel Mechanism Underlying Multi-walled Carbon Nanotube-Triggered Tomato Lateral Root Formation: the Involvement of Nitric Oxide

Nitric oxide is involved in the brassinolide-induced adventitious root development in cucumber

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