Effects of Abscisic Acid and Nitric Oxide on Chilling Resistance and Activation of the Antioxidant System in Walnut Shoots In Vitro

Dong, Ning; Qi, Jianxun; Li, Yuanfa; Yonghao, Chen; Hao, Yanbin

doi:10.21273/jashs04197-17

Cited by 9 publications

(14 citation statements)

References 49 publications

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“…These results suggested reversely that NO could mediate the protective effects of ABA. The results were consistent with those of previous reports . Moreover, the increased NO content in ABA‐treated peach during cold storage was inhibited by the NO scavenger or ABA synthesis inhibitor sodium tungstate (Fig.…”

Section: Discussionsupporting

confidence: 92%

“…For example, exogenous ABA can improve the antioxidant capacity and photosynthesis of grape leaves to alleviate cold stress, as well as increase chilling resistance of zucchini . Although ABA is generally regarded as a key regulator of many abiotic stresses, the mechanism of plant stress on abiotic reactions is not completely controlled by ABA signaling . Under ambient pressure conditions, other endogenous signaling substances can interact with ABA.…”

Section: Introductionmentioning

confidence: 99%

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Interactive effects of abscisic acid and nitric oxide on chilling resistance and active oxygen metabolism in peach fruit during cold storage

Zhang

Geng

et al. 2019

J Sci Food Agric

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Background Cold conditions can accelerate the production of reactive oxygen species (ROS), and excessive ROS may attack biological macromolecules, disrupt related signal pathways, induce oxidative stress and influence plant metabolism. The cross‐talk between nitric oxide (NO) and abscisic acid (ABA) and the inhibitions by NO or ABA on oxidative damage have been reported in fruits. However, there are few reports about the roles of NO–ABA interactions in chilling stress and antioxidant defense in fruits during cold storage. This study was conducted to investigate the roles of NO, ABA and interactions between NO and ABA in response to chilling stress on peach fruit (Prunus persica (L.) Batsch, cv. ‘Xintaihong’). Results Treatments with 15 µmol L−1 NO, 100 µmol L−1 ABA and 15 µmol L−1 NO + 5 mmol L−1 sodium tungstate solution could reduce ROS content, alleviate lipid peroxidation and enhance antioxidant enzyme activities and antioxidant capacities. However, treatments with 5 µmol L−1 potassium 2‐(4‐carboxyphenyl)‐4,4,5,5‐tetramethylimidazoline‐1‐oxyl‐3‐oxide (c‐PTIO), 5 mmol L−1 sodium tungstate and 100 µmol L−1 ABA + 5 µmol L−1 c‐PTIO differentially blocked these protective effects and significantly increased ROS content and lipid peroxidation of peaches under low‐temperature conditions. Conclusions Application of exogenous ABA could increase the resistance to cold‐induced oxidative stress by enhancing the efficiency of enzymatic and non‐enzymatic systems, which were partially mediated by NO. © 2018 Society of Chemical Industry

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Interactive effects of abscisic acid and nitric oxide on chilling resistance and active oxygen metabolism in peach fruit during cold storage

Zhang

Geng

et al. 2019

J Sci Food Agric

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“…The concentrations of NO, ABA, and c‐PTIO were selected based on previous studies . Sodium tungstate, l ‐NAME, and fluridone were also selected based on previous reports . The preparation of NO solutions was made as previously reported .…”

Section: Methodsmentioning

confidence: 99%

“…NO can act as a mediator of ABA signaling during the induction of stomatal closure and antioxidant defense . In plants, ABA can also trigger the production of endogenous NO . NO is also involved in the ABA‐delayed senescence of cut roses by maintaining moisture and antioxidant enzyme activity .…”

Section: Introductionmentioning

confidence: 99%

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Regulation of the biosynthesis of endogenous nitric oxide and abscisic acid in stored peaches by exogenous nitric oxide and abscisic acid

et al. 2020

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BACKGROUND Nitric oxide (NO) and abscisic acid (ABA) are important regulators of plant response to cold stress, and they interact in response to cold signals. The primary goal of this study was to determine the roles of exogenous NO and ABA on the synthesis of endogenous NO and ABA in cold‐stored peach fruit. RESULTS Exogenous NO and ABA maintained a relatively high content of NO, increased nitrate reductase (NR) activity, and inhibited the activity of NO synthase (NOS)‐like and the levels of polyamine biosynthesis in peaches during cold storage. Treatments of potassium 2‐(4‐carboxyphenyl)‐4,4,5,5‐tetramethylimidazoline‐1‐oxyl‐3‐oxide (c‐PTIO), NO, N‐nitro‐l‐Arg‐methyl ester (L‐NAME), and sodium tungstate did not influence ABA content. Exogenous ABA increased the content of carotenoids and the activities of aldehyde oxidase (AO), 9‐cis‐epoxycarotenoid dioxygenase (NCED), and zeaxanthin epoxidase (ZEP) of ABA synthesis in peaches during cold storage, and upregulated the gene expression of PpAO1, PpNCED1, PpNCED2, and PpZEP. The production of endogenous NO was differentially inhibited by NO scavengers, ABA inhibitors, and NR inhibitors, but not affected by NOS‐like inhibitors during cold storage. CONCLUSION Exogenous NO and ABA can induce endogenous NO synthesis in cold‐stored peaches by the nitrate reductase pathway, and ABA can mediate endogenous ABA synthesis by the autocatalytic reaction. NO does not regulate ABA synthesis. © 2019 Society of Chemical Industry

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Bioregulators: unlocking their potential role in regulation of the plant oxidative defense system

2020

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Key message Plant bioregulators play an important role in managing oxidative stress tolerance in plants. Utilizing their ability in stress sensitive crops through genetic engineering will be a meaningful approach to manage food production under the threat of climate change. Abstract Exploitation of the plant defense system against oxidative stress to engineer tolerant plants in the climate change scenario is a sustainable and meaningful strategy. Plant bioregulators (PBRs), which are important biotic factors, are known to play a vital role not only in the development of plants, but also in inducing tolerance in plants against various environmental extremes. These bioregulators include auxins, gibberellins, cytokinins, abscisic acid, brassinosteroids, polyamines, strigolactones, and ascorbic acid and provide protection against the oxidative stress-associated reactive oxygen species through modulation or activation of a plant's antioxidant system. Therefore, exploitation of their functioning and accumulation is of considerable significance for the development of plants more tolerant of harsh environmental conditions in order to tackle the issue of food security under the threat of climate change. Therefore, this review summarizes a new line of evidence that how PBRs act as inducers of oxidative stress resistance in plants and how they could be modulated in transgenic crops via introgression of genes. Reactive oxygen species production during oxidative stress events and their neutralization through an efficient antioxidants system is comprehensively detailed. Further, the use of exogenously applied PBRs in the induction of oxidative stress resistance is discussed. Recent advances in engineering transgenic plants with modified PBR gene expression to exploit the plant defense system against oxidative stress are discussed from an agricultural perspective.

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Effects of Abscisic Acid and Nitric Oxide on Chilling Resistance and Activation of the Antioxidant System in Walnut Shoots In Vitro

Cited by 9 publications

References 49 publications

Interactive effects of abscisic acid and nitric oxide on chilling resistance and active oxygen metabolism in peach fruit during cold storage

Interactive effects of abscisic acid and nitric oxide on chilling resistance and active oxygen metabolism in peach fruit during cold storage

Regulation of the biosynthesis of endogenous nitric oxide and abscisic acid in stored peaches by exogenous nitric oxide and abscisic acid

Bioregulators: unlocking their potential role in regulation of the plant oxidative defense system

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