Early generation of nitric oxide contributes to copper tolerance through reducing oxidative stress and cell death in hulless barley roots

Hu, Yanfeng

doi:10.1007/s10265-016-0841-0

Cited by 10 publications

(3 citation statements)

References 70 publications

(112 reference statements)

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“…Yang-5/Jian-864 through modulation enhanced antioxidant defense, leading to the decreased H 2 O 2 content and the lipid peroxidation of cells. Hu [ 39 ] showed that increasing the concentration of endogenous NO in the roots of Hordeum vulgare cv. Nude, provided by the treatment with SNP (200 µM), was the initial response through the imposition of stress by Cu, modulating the antioxidant defense and reducing the oxidative damage in the roots.…”

Section: Discussionmentioning

confidence: 99%

Soil Treatment with Nitric Oxide-Releasing Chitosan Nanoparticles Protects the Root System and Promotes the Growth of Soybean Plants under Copper Stress

Gomes

Debiasi

Pelegrino

et al. 2022

Plants

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The nanoencapsulation of nitric oxide (NO) donors is an attractive technique to protect these molecules from rapid degradation, expanding, and enabling their use in agriculture. Here, we evaluated the effect of the soil application of chitosan nanoparticles containing S-nitroso-MSA (a S-nitrosothiol) on the protection of soybeans (Glycine max cv. BRS 257) against copper (Cu) stress. Soybeans were grown in a greenhouse in soil supplemented with 164 and 244 mg kg−1 Cu and treated with a free or nanoencapsulated NO donor at 1 mM, as well as with nanoparticles without NO. There were also soybean plants treated with distilled water and maintained in soil without Cu addition (control), and with Cu addition (water). The exogenous application of the nanoencapsulated and free S-nitroso-MSA improved the growth and promoted the maintenance of the photosynthetic activity in Cu-stressed plants. However, only the nanoencapsulated S-nitroso-MSA increased the bioavailability of NO in the roots, providing a more significant induction of the antioxidant activity, the attenuation of oxidative damage, and a greater capacity to mitigate the root nutritional imbalance triggered by Cu stress. The results suggest that the nanoencapsulation of the NO donors enables a more efficient delivery of NO for the protection of soybean plants under Cu stress.

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Section: Discussionmentioning

confidence: 99%

Soil Treatment with Nitric Oxide-Releasing Chitosan Nanoparticles Protects the Root System and Promotes the Growth of Soybean Plants under Copper Stress

Gomes

Debiasi

Pelegrino

et al. 2022

Plants

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“…Metal contamination of waters results in serious environmental problems around the world and are mostly due to human activities, including the use of fertilizers, industrial mining and smelting, as well as the release of urban waste [1]. These metal contaminations are persistent and they can also undergo bio-magnifications and accumulation in food chains [2].…”

Section: Introductionmentioning

confidence: 99%

Copper and cadmium administration induce toxicity and oxidative stress in the marine flatworm Macrostomum lignano

Rivera‐Ingraham

Nommick

et al. 2020

Aquatic Toxicology

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The contamination of coastal regions with different toxicants, including heavy metal ions such as copper and cadmium jeopardizes health and survival of organisms exposed to this habitat. In order to study the effects of high copper and cadmium concentrations in these marine environments, we used the flatworm Macrostomum lignano as a model. This platyhelminth lives in shallow coastal waters and is exposed to high concentrations of all toxicants that accumulate in these shallow sea floors. We show that both, cadmium and copper induce toxicity at high concentrations, with copper being more toxic than cadmium. At concentrations below those inducing acute toxicity, long-term survival rates were reduced for both metal ions. The effects of sublethal doses comprise reduced physical activities and an increase in ROS levels within the worms.

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“…In naked barley (without hull), Cu-tolerance involved nitrate reductase-mediated NO-production (Hu et al, 2015). Further NO-mediated strengthening of antioxidant defense system and the control of oxidative stress and cell death was also shown (Hu, 2016). In Catharanthus roseus, SNP ameliorated Cu-toxicity by decreasing the ROS-burst, promoting the contents of amino acids and the total phenolic in the roots, regulating mineral absorption and re-establishing ATPase activities (Liu et al, 2016).…”

Section: No-mediated Copper-tolerance In Plantsmentioning

confidence: 99%

Mechanisms and Role of Nitric Oxide in Phytotoxicity-Mitigation of Copper

et al. 2020

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Phytotoxicity of metals significantly contributes to the major loss in agricultural productivity. Among all the metals, copper (Cu) is one of essential metals, where it exhibits toxicity only at its supra-optimal level. Elevated Cu levels affect plants developmental processes from initiation of seed germination to the senescence, photosynthetic functions, growth and productivity. The use of plant growth regulators/phytohormones and other signaling molecules is one of major approaches for reversing Cu-toxicity in plants. Nitric oxide (NO) is a versatile and bioactive gaseous signaling molecule, involved in major physiological and molecular processes in plants. NO modulates responses of plants grown under optimal conditions or to multiple stress factors including elevated Cu levels. The available literature in this context is centered mainly on the role of NO in combating Cu stress with partial discussion on underlying mechanisms. Considering the recent reports, this paper: (a) overviews Cu uptake and transport; (b) highlights the major aspects of Cu-toxicity on germination, photosynthesis, growth, phenotypic changes and nutrient-use-efficiency; (c) updates on NO as a major signaling molecule; and (d) critically appraises the Cu-significance and mechanisms underlying NO-mediated alleviation of Cu-phytotoxicity. The outcome of the discussion may provide important clues for future research on NO-mediated mitigation of Cu-phytotoxicity.

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Early generation of nitric oxide contributes to copper tolerance through reducing oxidative stress and cell death in hulless barley roots

Cited by 10 publications

References 70 publications

Soil Treatment with Nitric Oxide-Releasing Chitosan Nanoparticles Protects the Root System and Promotes the Growth of Soybean Plants under Copper Stress

Soil Treatment with Nitric Oxide-Releasing Chitosan Nanoparticles Protects the Root System and Promotes the Growth of Soybean Plants under Copper Stress

Copper and cadmium administration induce toxicity and oxidative stress in the marine flatworm Macrostomum lignano

Mechanisms and Role of Nitric Oxide in Phytotoxicity-Mitigation of Copper

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