Hydrogen sulfide promotes wheat seed germination under osmotic stress

Zhang, H.; Wang, M. J.; Hu, Lan-Ying; Wang, S. H.; Hu, Kang-Di; Bao, L. J.; Luo, Junrong

doi:10.1134/s1021443710040114

Cited by 89 publications

(59 citation statements)

References 22 publications

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“…Exposure of alfalfa (Medicago sativa) to 100 mM NaCl, seed germination and thereafter seedling growth were inhibited, but this negative effects could significantly be attenuated by NaHS at 100 µM . Zhang et al (2009b) reported that osmotic stress mimicked by PEG-6000 decreased dramatically chlorophyll in seedling leaves of sweetpotato (Ipomoea batata), and the osmotic-induced decrease in chlorophyll concentration was alleviated by spraying NaHS in a dose-dependent manner, similar to the reports of Zhang et al (2010b) in wheat seedlings. Also, In bermudagrass, exogenous application of NaHS improved salt (150 and 300 mM NaCl), osmotic (15% and 30% PEG6000) and cold (4 • C) tolerances, which were evidenced by decreased electrolyte leakage and increased survival rate under stress conditions (Shi et al 2013).…”

Section: Discussionsupporting

confidence: 67%

“…Again, application of NaHS increased the activities of APX, GR, dehydroascorbate reductase (DHAR) and γ-glutamylcysteine synthetase (γ-GCS), a key enzyme of GSH biosynthesis, as well as the contents of AsA, GSH, total ascorbate and total glutathione under water stress, which in turn decreased the MDA accumulation induced by water deficiency in wheat compared to control without NaHS treatment (Shan et al 2011). Further experiments showed that NaHS treatment significantly increased CAT and APX activities, reduced lipoxygenase activity, MDA and H 2 O 2 accumulation in wheat seeds under osmotic stress (Zhang et al 2010b). In addition, root pretreatment with NaHS resulted in gene expression of key antioxidant enzymes APX, CAT, SOD, GR as well as ascorbate and glutathione biosynthesis glutamylcysteine synthetase (GCS), l-galactose dehydrogenase (GDH) and glutathione synthetase (GS), reduced oxidative and nitrosative stress in strawberry plants, manifesting via lower levels of synthesis of NO and H 2 O 2 in leaves, and maintained high ascorbate and glutathione redox states, which in turn improved the resistance of plants to subsequent salt and non-ionic osmotic stresses (Christou et al 2013).…”

Section: Discussionmentioning

confidence: 99%

“…In plant systems, hydrogen sulfide has been found to play multiple physiological roles in plant growth, development and the acquisition of stress tolerance like heat tolerance (Lisjak et al 2010(Lisjak et al , 2013Li 2013). The novel functions of hydrogen sulfide have been uncovered in seed germination (Zhang et al 2010a;Li et al 2012a), root organogenesis (Zhang et al 2009a) and stomata movement (Lisjak et al 2010;Liu et al 2011;Jin et al 2013), as well as in alleviation in osmotic stress (Zhang et al 2009b), salt stress (Wang et al 2012), oxidative stress (Shan et al 2011, heavy metal stress (Zhang et al 2008(Zhang et al , 2010bChen et al 2013) and pathogen infection (Bloem et al 2011). Our previous results also showed that pretreatment with sodium hydrosulfide (NaHS), a hydrogen sulfide donor, could improve resistance of tobacco cells (Li et al 2012b) and maize seedlings (Li et al 2013a(Li et al ,b, 2014 to high temperature, but its mechanism is not fully clear.…”

Section: Introductionmentioning

confidence: 99%

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Effect of pretreatment with hydrogen sulfide donor sodium hydrosulfide on heat tolerance in relation to antioxidant system in maize (Zea mays) seedlings

2014

Biologia

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Hydrogen sulfide (H2S) is a signal molecule that is involved in plant growth, development and the acquisition of stress tolerance including heat tolerance, but the mechanism of H2S-induced heat tolerance is not completely clear. In present study, the effect of sodium hydrosulfide (NaHS), a H2S donor, treatment on heat tolerance of maize seedlings in relation to antioxidant system was investigated. The results showed that NaHS treatment improved survival percentage of maize seedlings under heat stress in a concentration-dependent manner, indicating that H2S treatment could improve heat tolerance of maize seedlings. To further study mechanism of NaHS-induced heat tolerance, catalase (CAT), guaiacol peroxidase (GPX), superoxide dismutase (SOD), glutathione reductase (GR) and ascorbate peroxidase (APX) activities, and glutathione (GSH) and ascorbic acid (AsA) contents in maize seedlings were determined. The results showed that NaHS treatment increased the activities of CAT, GPX, SOD and GR, and GSH and AsA contents as well as the ratio of reduced antioxidants to total antioxidants [AsA/(AsA+DHA) and GSH/(GSH +GSSG)] in maize seedlings under normal culture conditions compared with the control. Under heat stress, antioxidant enzymes activities, antioxidants contents and the ratio of the reduced antioxidants to total antioxidants in control and treated seedlings all decreased, but NaHS-treated seedlings maintained higher antioxidant enzymes activities and antioxidants levels as well as the ratio of reduced antioxidants to total antioxidants. All of above-mentioned results suggested that NaHS treatment could improve heat tolerance of maize seedlings, and the acquisition of this heat tolerance may be relation to enhanced antioxidant system activity.

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Section: Discussionsupporting

confidence: 67%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of pretreatment with hydrogen sulfide donor sodium hydrosulfide on heat tolerance in relation to antioxidant system in maize (Zea mays) seedlings

2014

Biologia

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“…In plants, although originally associated with plant-pathogen interaction, it is now known to have an active role in diverse physiological processes such as oxidative stress, germination, and heat tolerance (Zhang et al, 2009a(Zhang et al, , 2009b(Zhang et al, , 2010a(Zhang et al, , 2010b(Zhang et al, , 2010dLi et al, 2013aLi et al, , 2013b. Recently, H 2 S has been proven to participate in ABA-or ethylene-induced stomatal closure in different plant species (García-Mata and Lamattina, 2010; Liu et al, 2011Liu et al, , 2012Jin et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Hydrogen Sulfide Generated byl-Cysteine Desulfhydrase Acts Upstream of Nitric Oxide to Modulate Abscisic Acid-Dependent Stomatal Closure

et al. 2014

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Abscisic acid (ABA) is a well-studied regulator of stomatal movement. Hydrogen sulfide (H 2 S), a small signaling gas molecule involved in key physiological processes in mammals, has been recently reported as a new component of the ABA signaling network in stomatal guard cells. In Arabidopsis (Arabidopsis thaliana), H 2 S is enzymatically produced in the cytosol through the activity of L-cysteine desulfhydrase (DES1). In this work, we used DES1 knockout Arabidopsis mutant plants (des1) to study the participation of DES1 in the cross talk between H 2 S and nitric oxide (NO) in the ABA-dependent signaling network in guard cells. The results show that ABA did not close the stomata in isolated epidermal strips of des1 mutants, an effect that was restored by the application of exogenous H 2 S. Quantitative reverse transcription polymerase chain reaction analysis demonstrated that ABA induces DES1 expression in guard cell-enriched RNA extracts from wild-type Arabidopsis plants. Furthermore, stomata from isolated epidermal strips of Arabidopsis ABA receptor mutant pyrabactin-resistant1 (pyr1)/pyrabactin-like1 (pyl1)/pyl2/pyl4 close in response to exogenous H 2 S, suggesting that this gasotransmitter is acting downstream, although acting independently of the ABA receptor cannot be ruled out with this data. However, the Arabidopsis clade-A PROTEIN PHOSPHATASE2C mutant abscisic acid-insensitive1 (abi1-1) does not close the stomata when epidermal strips were treated with H 2 S, suggesting that H 2 S required a functional ABI1. Further studies to unravel the cross talk between H 2 S and NO indicate that (1) H 2 S promotes NO production, (2) DES1 is required for ABA-dependent NO production, and (3) NO is downstream of H 2 S in ABA-induced stomatal closure. Altogether, data indicate that DES1 is a unique component of ABA signaling in guard cells.Abscisic acid (ABA) regulates diverse physiological and developmental processes in plants, among which seed dormancy and stomatal movement are the most studied. Stomata are pores bordered by pairs of specialized cells named guard cells located in the epidermis of the aerial part of most land plants. Due to the waxy cuticle of plants, stomatal pores regulate approximately 90% of all the gas exchange (i.e. the uptake of CO 2 required for photosynthesis and the loss of water vapor during transpiration) between the plant and the environment (Hetherington and Woodward, 2003). Thus, stomatal movement is a key process for the regulation of plant water status and biomass production. In guard cells, ABA induces an increase of intracellular calcium concentrations, which, in turn, induces an efflux of anions that causes membrane depolarization. In this voltage milieu, ion uptake is blocked through the inactivation of inward-rectifying potassium channels, and ion efflux is induced through activation of outward-rectifying potassium channels. This solute relocation drives water out of the guard cells and closes the stomatal pore as a result of a reduction in guard cell turgor (Blatt, 2000;Kim et al...

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“…For the gel in (c), homogentes were incubated with 25 mm edtA to inactivate α-amylase and for (d), they were heated at 70°c to inactivate β-amylase. SO 2 injury, 10,20 and abiotic stresses tolerance in plants treated with H 2 S donor, 1,[21][22][23][24] all infer that H 2 S is involved in these responses.…”

mentioning

confidence: 99%

Hydrogen sulfide stimulates β-amylase activity during early stages of wheat grain germination

Zhang

Dou

Jiang

et al. 2010

Plant Signaling & Behavior

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Hydrogen sulfide promotes wheat seed germination under osmotic stress

Cited by 89 publications

References 22 publications

Effect of pretreatment with hydrogen sulfide donor sodium hydrosulfide on heat tolerance in relation to antioxidant system in maize (Zea mays) seedlings

Effect of pretreatment with hydrogen sulfide donor sodium hydrosulfide on heat tolerance in relation to antioxidant system in maize (Zea mays) seedlings

Hydrogen Sulfide Generated byl-Cysteine Desulfhydrase Acts Upstream of Nitric Oxide to Modulate Abscisic Acid-Dependent Stomatal Closure

Hydrogen sulfide stimulates β-amylase activity during early stages of wheat grain germination

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