Signaling Molecule Hydrogen Sulfide Improves Seed Germination and Seedling Growth of Maize (Zea mays L.) Under High Temperature by Inducing Antioxidant System and Osmolyte Biosynthesis

Zhihao, Zhou; Wang, Yue; Ye, Xinyu; Li, Zhong-Guang

doi:10.3389/fpls.2018.01288

Cited by 90 publications

(45 citation statements)

References 58 publications

(101 reference statements)

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“…When seeds are germinated in non-optimal conditions there is a positive correlation between ROS scavenging ability through antioxidant systems and germination rate. For example, among only recent studies, seed antioxidant enzyme activities have been demonstrated to increase in response to high temperature and drought stress [43,80], low temperature [81], salt stress [82,83] or mutagen agents [38]. In those cases, the activation of antioxidant enzymes is necessary to prevent excessive ROS accumulation and related oxidative damage.…”

Section: Ros Production In Seedsmentioning

confidence: 99%

The signalling role of ROS in the regulation of seed germination and dormancy

Bailly

2019

Biochemical Journal

230

185

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Reactive oxygen species (ROS) are versatile compounds which can have toxic or signalling effects in a wide range living organisms, including seeds. They have been reported to play a pivotal role in the regulation of seed germination and dormancy but their mechanisms of action are still far from being fully understood. In this review, we sum-up the major findings that have been carried out this last decade in this field of research and which altogether shed a new light on the signalling roles of ROS in seed physiology. ROS participate in dormancy release during seed dry storage through the direct oxidation of a subset of biomolecules. During seed imbibition, the controlled generation of ROS is involved in the perception and transduction of environmental conditions that control germination. When these conditions are permissive for germination, ROS levels are maintained at a level which triggers cellular events associated with germination, such as hormone signalling. Here we propose that the spatiotemporal regulation of ROS production acts in concert with hormone signalling to regulate the cellular events involved in cell expansion associated with germination.

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Section: Ros Production In Seedsmentioning

confidence: 99%

The signalling role of ROS in the regulation of seed germination and dormancy

Bailly

2019

Biochemical Journal

230

185

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“…It has been reported to enhance the plant's resistance under waterlogging stress by enhancing the antioxidant enzyme system in tomato (Murshed et al, 2013), and in fruit trees such as mandarin (Sarkar et al, 2016). Research has shown that H 2 S can improve maize seed germination and seedling growth under high temperature by inducing antioxidant system and osmolyte biosynthesis (Zhou et al, 2018) and alleviate the damage to pea plants caused by waterlogging stress (Cheng et al, 2013). Application of H 2 S decreased the production of ROS in the plant leaves and roots by increasing antioxidant activities and had a protective role on plant growth, photosynthetic parameters, elements uptake under stress conditions (Ali et al, 2014a,b,c).…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Sulfide Alleviates Waterlogging-Induced Damage in Peach Seedlings via Enhancing Antioxidative System and Inhibiting Ethylene Synthesis

Xiao

Sun

et al. 2020

Front. Plant Sci.

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Peach (Prunus persica L. Batsch) is a shallow root fruit tree with poor waterlogging tolerance. Hydrogen sulfide (H 2 S) is a signal molecule which regulates the adaptation of plants to adverse environments. Nevertheless, the effects of exogenous applications of H 2 S in fruit tree species especially in peach trees under waterlogging stress have been scarcely researched. Thus, the goal of this research was to investigate the alleviating effect of exogenous H 2 S on peach seedlings under waterlogging stress. In the present study, we found that the effect of exogenous H 2 S depended on the concentration and 0.2 mM sodium hydrosulfide (NaHS) showed the best remission effect on peach seedlings under waterlogging stress. Waterlogging significantly reduced the stomatal opening, net photosynthetic rate, and Fv/Fm of peach seedlings. The results of histochemical staining and physiological and biochemical tests showed that waterlogging stress increased the number of cell deaths and amounts of reactive oxygen species (ROS) accumulated in leaves, increased the number of root cell deaths, significantly increased the electrolyte permeability, O 2. − production rate, H 2 O 2 content and ethylene synthesis rate of roots, and significantly reduced root activity. With prolonged stress, antioxidative enzyme activity increased initially and then decreased. Under waterlogging stress, application of 0.2 mM NaHS increased the number of stomatal openings, improved the chlorophyll content, and photosynthetic capacity of peach seedlings. Exogenous H 2 S enhanced antioxidative system and significantly alleviate cell death of roots and leaves of peach seedlings caused by waterlogging stress through reducing ROS accumulation in roots and leaves. H 2 S can improve the activity and proline content of roots, reduce oxidative damage, alleviated lipid peroxidation, and inhibit ethylene synthesis. The H 2 S scavenger hypotaurine partially eliminated the effect of exogenous H 2 S on alleviating waterlogging stress of peach seedlings. Collectively, our results provide an insight into the protective role of H 2 S in waterlogging-stressed peach seedlings and suggest H 2 S as a potential candidate in reducing waterlogging-induced damage in peach seedlings.

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“…Exogenous H 2 S, as well as donors such as sodium hydrosulfide (NaHS), can decrease Na + concentration to alleviate growth inhibition caused by NaCl stress in wheat seedlings [5]. NaHS induces the antioxidant system and osmolyte biosynthesis to improve the seed germination and seedling growth of maize under elevated temperatures [6]. Environmental stresses cause the accumulation of endogenous H 2 S, which regulates the peroxisomal H 2 O 2 metabolism, as a novel component in peroxisomes, by inhibiting catalase activity [7].…”

Section: Introductionmentioning

confidence: 99%

Regulation of Hydrogen Sulfide Metabolism by Nitric Oxide Inhibitors and the Quality of Peaches during Cold Storage

2019

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Both nitric oxide (NO) and hydrogen sulfide (H2S) have been shown to have positive effects on the maintenance of fruit quality during storage; however, the mechanisms by which NO regulates the endogenous H2S metabolism remain unknown. In this experiment, peaches were immersed in solutions of NO, potassium 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (c-PTIO, as an NO scavenger), N-nitro-l-arginine methyl ester (l-NAME, as an inhibitor of nitric oxide synthase (NOS)-like activity), and sodium tungstate (as an inhibitor of nitrate reductase), and the resulting changes in the H2S metabolism of peaches were studied. The results showed that exogenous NO reduced the contents of endogenous H2S, Cys, and sulfite; decreased the activities of l-/d-cysteine desulfhydrase (l-/d-CD), O-acetylserine (thiol)lyase (OAS-TL), and sulfite reductase (SiR); and increased the activity of β-cyanoalanine synthase (β-CAS). Both c-PTIO and sodium tungstate had similar roles in increasing the H2S content by sustaining the activities of l-/d-CDs, OAS-TL, and SiR. l-NAME increased the H2S content, mainly by maintaining the d-CD activity. The results suggest that NO, c-PTIO, l-NAME, and sodium tungstate differently regulate the H2S metabolism of peaches during storage.

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Signaling Molecule Hydrogen Sulfide Improves Seed Germination and Seedling Growth of Maize (Zea mays L.) Under High Temperature by Inducing Antioxidant System and Osmolyte Biosynthesis

Cited by 90 publications

References 58 publications

The signalling role of ROS in the regulation of seed germination and dormancy

The signalling role of ROS in the regulation of seed germination and dormancy

Hydrogen Sulfide Alleviates Waterlogging-Induced Damage in Peach Seedlings via Enhancing Antioxidative System and Inhibiting Ethylene Synthesis

Regulation of Hydrogen Sulfide Metabolism by Nitric Oxide Inhibitors and the Quality of Peaches during Cold Storage

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