Protective effect of nitric oxide against oxidative stress under ultraviolet-B radiation

Su-yun, Shi; Wang, Gang; Wang, Yading; Zhang, Lingang; Zhang, Lixin

doi:10.1016/j.niox.2005.04.006

Cited by 203 publications

(140 citation statements)

References 46 publications

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“…In the present investigations also, SNP could completely alleviate the adverse effect of NaCl on short duration stress of 2 days, but as the duration of stress was increased to 4 and 6 days alleviation was partial. A protective effect of NO on relative membrane injury has been reported under drought stress (Garcia-Mata and Lamattina 2001; Wang et al 2004;Zhao et al 2008) salt stress (Zhao et al 2004;Zhang et al 2006;Shi et al 2007;Li et al 2008) heavy metal stress (Hsu and Kao 2005;Singh et al 2008) UV stress (Shi et al 2005) wounding (Grun et al 2006) and in ageing and senescence (Tu et al 2003;Hung and Kao 2005).…”

Section: Discussionmentioning

confidence: 99%

“…Plants resist the stress induced production of ROS by increasing components of antioxidant defense system. The protective role of NO against oxidative damage could be explained by its role as a signaling molecule, which activates antioxidant enzymes (Huang et al 2002;Shi et al 2005). To assess whether the reduction of salt stress induced oxidative damage as evinced by decreased membrane injury, lipid peroxidation and H 2 O 2 content may be due to antioxidant properties of NO, the activity of antioxidant enzymes such as SOD, POX, CAT, APX, DHAR and antioxidant metabolites glutathione and ascorbic acid were studied.…”

Section: Discussionmentioning

confidence: 99%

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Ameliorative effect of exogenous nitric oxide on oxidative metabolism in NaCl treated chickpea plants

Sheokand

Bhankar

Sawhney

2010

Braz. J. Plant Physiol.

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Accumulation of salts in irrigated soils is one of the primary factors limiting yield in South Asia. We investigated whether exogenous nitric oxide (NO) supplementation as sodium nitroprusside has any ameliorating effect against NaCl induced oxidative damage in chickpea leaves. NaCl treatment (250 mM) alone and in combination with two concentrations of SNP (0.2 and 1 mM) were given to 50 days old chickpea plants for 2, 4 and 6 days. Salt stress adversely affected the relative membrane injury, lipid peroxidation levels, relative water content (RWC) and H 2 O 2 content. The effect was time dependent. SNP treatments could ameliorate the toxic effect of short term salt stress of 2 days on relative membrane injury and partial amelioration was observed with 4 and 6 day stress treatment. A partial ameliorative effect of SNP was observed with lipid peroxidation levels, H 2 O 2 content and RWC. Salt stress activated the antioxidant system by increasing the activities of SOD, POX, APX and DHAR. However no obvious change was observed in GR activity and CAT activity decreased under salt stress. Both the SNP treatments had a positive effect on antioxidant enzymes SOD, CAT, APX, GR and DHAR under salt stress. NaCl treatment resulted in a decline in the GSH/GSSG and ASC/DHA ratio. SNP treatments increased the reduced form of both the metabolites thus elevating the ratio of GSH/GSSG and ASC/DHA. This study concludes that exogenous application of NO protects chickpea leaves from NaCl induced oxidative stress.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Ameliorative effect of exogenous nitric oxide on oxidative metabolism in NaCl treated chickpea plants

Sheokand

Bhankar

Sawhney

2010

Braz. J. Plant Physiol.

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“…An important link between ABA and NO action in plants are reactive oxygen species (ROS) (Neill 2005;Bright et al 2006) and plants appear to have redundancy in signaling mechanisms for these molecules (Kwak et al 2003;Apel and Hirt 2004;Shi et al 2005;Zago et al 2006). Therefore, cross-talk between diVerent elicitation pathways could result in identical biological outputs for diVerent stimuli.…”

Section: Introductionmentioning

confidence: 99%

Reactive oxygen species, ABA and nitric oxide interactions on the germination of warm-season C4-grasses

Sarath

Hou

Baird

et al. 2007

Planta

152

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For non-dormant switchgrass seeds exhibiting diVerent levels of germination, treatment with H 2 O 2 resulted in rapid germination (<3 days) of all germinable seeds as compared to seeds placed on water. Exposure to 20 mM H 2 O 2 elicited simultaneous growth of the root and shoot system, resulting in more uniform seedling development. Seeds of big bluestem (Andropogon gerardii Vitman) and indiangrass [Sorghastrum nutans (L.) Nash] also responded positively to H 2 O 2 treatment, indicating the universality of the eVect of H 2 O 2 on seed germination in warm-season prairie grasses. For switchgrass seeds, abscisic acid (ABA) and the NADPH-oxidase inhibitor, diphenyleneiodonium (DPI) at 20 M retarded germination (radicle emergence), stunted root growth and partially inhibited NADPH-oxidase activity in seeds. H 2 O 2 reversed the inhibitory eVects of DPI and ABA on germination and coleoptile elongation, but did not overcome DPI inhibition of root elongation. Treatment with H 2 O 2 appeared to enhance endogenous production of nitric oxide, and a scavenger of nitric oxide abolished the peroxide-responsive stimulation of switchgrass seed germination. The activities and levels of several proteins changed earlier in seeds imbibed on H 2 O 2 as compared to seeds maintained on water or on ABA. These data demonstrate that seed germination of warm-season grasses is signiWcantly responsive to oxidative conditions and highlights the complex interplay between seed redox status, ABA, ROS and NO in this system.

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“…For example, NO acts as a signal in disease resistance (Delledonne, 2005), regulates stomatal closure (García-Mata and Lamattina, 2001), and stimulates germination (Beligni and Lamattina, 2000). NO has also been proposed to be a broad-spectrum antistress molecule CorreaAragunde et al, 2007), because it confers protection against oxidative stress produced by diquat, UV-B, drought, and salt (Beligni and Lamattina, 2000;García-Mata and Lamattina, 2001;Zhao et al, 2004;Shi et al, 2005;Tossi et al, 2009Tossi et al, , 2011Tossi et al, , 2012. It was reported that NO increases as a consequence of UV-B irradiation in bacteria, animals, and plants (Seo et al, 2002;An et al, 2005;Qu et al, 2006).…”

mentioning

confidence: 99%

Ultraviolet-B-Induced Stomatal Closure in Arabidopsis Is Regulated by the UV RESISTANCE LOCUS8 Photoreceptor in a Nitric Oxide-Dependent Mechanism

et al. 2014

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UV RESISTANCE LOCUS8 (UVR8) signaling involves CONSTITUTIVELY PHOTOMORPHOGENIC1, the ELONGATED HYPOCOTYL5 (HY5) transcription factor, and the closely related HY5 HOMOLOG. Some UV-B responses mediated by UVR8 are also regulated by nitric oxide (NO), a bioactive molecule that orchestrates a wide range of processes in plants. In this study, we investigated the participation of the UVR8 pathway and its interaction with NO in UV-B-induced stomatal movements in Arabidopsis (Arabidopsis thaliana). Stomata in abaxial epidermal strips of Arabidopsis ecotype Landsberg erecta closed in response to increasing UV-B fluence rates, with maximal closure after 3-h exposure to 5.46 mmol m -2 s -1 UV-B. Both hydrogen peroxide (H 2 O 2 ) and NO increased in response to UV-B, and stomatal closure was maintained by NO up to 24 h after the beginning of exposure. Stomata of plants expressing bacterial NO dioxygenase, which prevents NO accumulation, did not close in response to UV-B, although H 2 O 2 still increased. When the uvr8-1 null mutant was exposed to UV-B, stomata remained open, irrespective of the fluence rate. Neither NO nor H 2 O 2 increased in stomata of the uvr8-1 mutant. However, the NO donor S-nitrosoglutathione induced closure of uvr8-1 stomata to the same extent as in the wild type. Experiments with mutants in UVR8 signaling components implicated CONSTITUTIVELY PHOTOMORPHOGENIC1, HY5, and HY5 HOMOLOG in UV-B-induced stomatal closure. This research provides evidence that the UVR8 pathway regulates stomatal closure by a mechanism involving both H 2 O 2 and NO generation in response to UV-B exposure.

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Protective effect of nitric oxide against oxidative stress under ultraviolet-B radiation

Cited by 203 publications

References 46 publications

Ameliorative effect of exogenous nitric oxide on oxidative metabolism in NaCl treated chickpea plants

Ameliorative effect of exogenous nitric oxide on oxidative metabolism in NaCl treated chickpea plants

Reactive oxygen species, ABA and nitric oxide interactions on the germination of warm-season C4-grasses

Ultraviolet-B-Induced Stomatal Closure in Arabidopsis Is Regulated by the UV RESISTANCE LOCUS8 Photoreceptor in a Nitric Oxide-Dependent Mechanism

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