Effects of exogenous spermidine on antioxidant system of tomato seedlings exposed to high temperature stress

Sang, Q. Q.; Shu, Sheng; Xi, Shibo; Guo, Shirong; Sun, Jian

doi:10.1134/s1021443716050113

Cited by 40 publications

(30 citation statements)

References 32 publications

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“…The variance might be due to the post-transcriptional regulation and post-translational modification of SOD through complex mechanisms, which needs further study. Taken together, the exogenous Spd is involved in antioxidant and detoxification defense mechanisms, mitigating oxidative damage and intensifying the resistance to high-temperature stress (Mostofa et al, 2014 ; Sang et al, 2016 ).…”

Section: Discussionmentioning

confidence: 99%

Proteomic Analysis Reveals the Positive Effect of Exogenous Spermidine in Tomato Seedlings' Response to High-Temperature Stress

Sang

et al. 2017

Front. Plant Sci.

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Polyamines are phytohormones that regulate plant growth and development as well as the response to environmental stresses. To evaluate their functions in high-temperature stress responses, the effects of exogenous spermidine (Spd) were determined in tomato leaves using two-dimensional electrophoresis and MALDI-TOF/TOF MS. A total of 67 differentially expressed proteins were identified in response to high-temperature stress and/or exogenous Spd, which were grouped into different categories according to biological processes. The four largest categories included proteins involved in photosynthesis (27%), cell rescue, and defense (24%), protein synthesis, folding and degradation (22%), and energy and metabolism (13%). Exogenous Spd up-regulated most identified proteins involved in photosynthesis, implying an enhancement in photosynthetic capacity. Meanwhile, physiological analysis showed that Spd could improve net photosynthetic rate and the biomass accumulation. Moreover, an increased high-temperature stress tolerance by exogenous Spd would contribute to the higher expressions of proteins involved in cell rescue and defense, and Spd regulated the antioxidant enzymes activities and related genes expression in tomato seedlings exposed to high temperature. Taken together, these findings provide a better understanding of the Spd-induced high-temperature resistance by proteomic approaches, providing valuable insight into improving the high-temperature stress tolerance in the global warming epoch.

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Section: Discussionmentioning

confidence: 99%

Proteomic Analysis Reveals the Positive Effect of Exogenous Spermidine in Tomato Seedlings' Response to High-Temperature Stress

Sang

et al. 2017

Front. Plant Sci.

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“…High-temperature stress can cause significant changes in the expression of some proteins. Spraying exogenous Spd on the leaves can inhibit or promote the expression of some proteins and improve photosynthesis, energy and material metabolism, reactive oxygen species clearance and the biosynthesis of proteins and nucleic acids, which can promote the stress tolerance and improve the adaptability of plants to high temperature [ 12 – 14 ].…”

Section: Introductionmentioning

confidence: 99%

Identification of microRNAs associated with the exogenous spermidine-mediated improvement of high-temperature tolerance in cucumber seedlings (Cucumis sativus L.)

et al. 2018

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BackgroundHigh-temperature stress inhibited the growth of cucumber seedlings. Foliar spraying of 1.0 mmol·L− 1 exogenous spermidine (Spd) to the sensitive cucumber cultivar ‘Jinchun No. 2’ grown at high-temperature (42 °C/32 °C) in an artificial climate box improved the high-temperature tolerance. Although there have been many reports on the response of microRNAs (miRNAs) to high-temperature stress, the mechanism by which exogenous Spd may mitigate the damage of high-temperature stress through miRNA-mediated regulation has not been studied.ResultsTo elucidate the regulation of miRNAs in response to exogenous Spd-mediated improvement of high-temperature tolerance, four small RNA libraries were constructed from cucumber leaves and sequenced: untreated-control (CW), Spd-treated (CS), high-temperature stress (HW), and Spd-treated and high-temperature stress (HS). As a result, 107 known miRNAs and 79 novel miRNAs were identified. Eight common differentially expressed miRNAs (miR156d-3p, miR170-5p, miR2275-5p, miR394a, miR479b, miR5077, miR5222 and miR6475) were observed in CS/CW, HW/CW, HS/CW and HS/HW comparison pairs, which were the first set of miRNAs that responded to not only high-temperature stress but also exogenous Spd in cucumber seedlings. Five of the eight miRNAs were predicted to target 107 potential genes. Gene function and pathway analyses highlighted the integral role that these miRNAs and target genes probably play in the improvement of the high-temperature tolerance of cucumber seedlings through exogenous Spd application.ConclusionsOur study identified the first set of miRNAs associated with the exogenous Spd-mediated improvement of high-temperature tolerance in cucumber seedlings. The results could help to promote further studies on the complex molecular mechanisms underlying high-temperature tolerance in cucumber and provide a theoretical basis for the high-quality and efficient cultivation of cucumber with high-temperature resistance.Electronic supplementary materialThe online version of this article (10.1186/s12864-018-4678-x) contains supplementary material, which is available to authorized users.

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“…Many strategies could be adapted to overcome these stresses depending on the kind of stress, cultivated plants and its growth stage (Zhou et al, 2020). Several researchers reported about these strategies for tomato seedlings, which include the application of spermidine (Sang et al, 2016), Ca, Mg and K compounds (Sakhonwasee andPhingkasan, 2017 andNafees et al, 2019), ascorbic acid (Alayafi, 2019), melatonin and salicylic acid (Jahanet al, 2019, 2020b) as well as proline (Tonhati et al, 2020). Therefore, the production of tomato seedlings under greenhouse conditions may face some stresses, which still need more and more investigations in particular in arid and semi-arid regions in summer (Fig.…”

Section: Tomato As a Model Plantmentioning

confidence: 99%

Management of Heat Stress in Tomato Seedlings under Arid and Semi-Arid Regions: A Review

Abdalla¹,

Taha

El-Ramady

et al. 2020

EBSS

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T HE production of protected cultivation of vegetables could be considered as a sustainable solution in arid and semi-arid regions.These regions already suffer from raising temperature andthe global warmingwill aggravate this, whichrepresents a great challenge facing our universe nowadays. Hence, the production of vegetables and tomato under greenhouse system during the high temperatures may be considered a serious problem should be avoided in these arid zonesin summer due to heat stress.The heat stress may cause a lot of troubles for the tomato seedlings in greenhouses in summer starting with the photosynthetic rate, and the metabolism processes in seedlings and in turn the growth and development of these seedlings. Although studies have recognized heat stress on tomato seedlings, research has yet to systematically investigate the effect of heat stress on tomato seedlings in greenhouse in summer under arid and semi-arid regions particularly in developing countries, which their greenhouses have not any climate controllers. Therefore, the management of tomato seedlings may need to address the production problems caused by heat stress in greenhouse conditions particularly in arid and semi-arid zones

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Effects of exogenous spermidine on antioxidant system of tomato seedlings exposed to high temperature stress

Cited by 40 publications

References 32 publications

Proteomic Analysis Reveals the Positive Effect of Exogenous Spermidine in Tomato Seedlings' Response to High-Temperature Stress

Proteomic Analysis Reveals the Positive Effect of Exogenous Spermidine in Tomato Seedlings' Response to High-Temperature Stress

Identification of microRNAs associated with the exogenous spermidine-mediated improvement of high-temperature tolerance in cucumber seedlings (Cucumis sativus L.)

Management of Heat Stress in Tomato Seedlings under Arid and Semi-Arid Regions: A Review

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