Salicylic acid as attenuator of drought stress on germination and initial development of sesame

Silva, Adriana C. da; Suassuna, Janivan Fernandes; Melo, Alberto Soares de; Costa, Rayssa Ribeiro da; Andrade, Wellerson Leite de; Silva, Duval C. da

doi:10.1590/1807-1929/agriambi.v21n3p156-162

Cited by 38 publications

(22 citation statements)

References 9 publications

(10 reference statements)

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“…In barley plants, salinity stress caused alterations in the rate of photosynthesis and membrane stability; however, these negative effects of salinity stress were ameliorated by the application of SA ( Janda et al, 2012 ). Similar observations were reported by da Silva et al (2017) in case of SA at 10 -5 M which increased plant growth of sesame under drought stress ( da Silva et al, 2017 ). The treatment of maize with SA reduced the accumulation of Na in plant tissue and mitigated salt-induced negative effects on plants ( Gunes et al, 2007 ).…”

Section: Role Of Phytohormones In Plant Response To Abiotic Stresssupporting

confidence: 88%

“…Salicylic acid is another important phytohormone with a phenolic nature, and it has an important function in plant stress tolerance through modulation of antioxidative enzyme activities ( Ahmad et al, 2011 ; da Silva et al, 2017 ). The alleviation of various abiotic stresses by application of SA was reported by Senaratna et al (2000) for water stress, by Azooz et al (2011) for salt stress and by Ahmad et al (2011) for heavy metal stress.…”

Section: Role Of Phytohormones In Plant Response To Abiotic Stressmentioning

confidence: 99%

“…In Vigna radiata , L. Khan et al (2014) observed that treatment of seeds with SA helped to considerably mitigate salt stress-induced changes. SA-treated plants showed better growth in terms of biomass accumulation, promotion of cell division, and showed a higher photosynthetic rate and antioxidant enzyme activity ( da Silva et al, 2017 ). In barley plants, salinity stress caused alterations in the rate of photosynthesis and membrane stability; however, these negative effects of salinity stress were ameliorated by the application of SA ( Janda et al, 2012 ).…”

Section: Role Of Phytohormones In Plant Response To Abiotic Stressmentioning

confidence: 99%

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Phytohormones and Beneficial Microbes: Essential Components for Plants to Balance Stress and Fitness

2017

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Plants are subjected to various abiotic stresses, such as drought, extreme temperature, salinity, and heavy metals. Abiotic stresses have negative impact on the physiology and morphology of plants through defects in the genetic regulation of cellular pathways. Plants employ several tolerance mechanisms and pathways to avert the effects of stresses that are triggered whenever alterations in metabolism are encountered. Phytohormones are among the most important growth regulators; they are known for having a prominent impact on plant metabolism, and additionally, they play a vital role in the stimulation of plant defense response mechanisms against stresses. Exogenous phytohormone supplementation has been adopted to improve growth and metabolism under stress conditions. Recent investigations have shown that phytohormones produced by root-associated microbes may prove to be important metabolic engineering targets for inducing host tolerance to abiotic stresses. Phytohormone biosynthetic pathways have been identified using several genetic and biochemical methods, and numerous reviews are currently available on this topic. Here, we review current knowledge on the function of phytohormones involved in the improvement of abiotic stress tolerance and defense response in plants exposed to different stressors. We focus on recent successes in identifying the roles of microbial phytohormones that induce stress tolerance, especially in crop plants. In doing so, this review highlights important plant morpho-physiological traits that can be exploited to identify the positive effects of phytohormones on stress tolerance. This review will therefore be helpful to plant physiologists and agricultural microbiologists in designing strategies and tools for the development of broad spectrum microbial inoculants supporting sustainable crop production under hostile environments.

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Section: Role Of Phytohormones In Plant Response To Abiotic Stresssupporting

confidence: 88%

Section: Role Of Phytohormones In Plant Response To Abiotic Stressmentioning

confidence: 99%

Section: Role Of Phytohormones In Plant Response To Abiotic Stressmentioning

confidence: 99%

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Phytohormones and Beneficial Microbes: Essential Components for Plants to Balance Stress and Fitness

2017

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“…According to Kadioglu et al (2011), salicylic acid acts as a signaler in the modulation of responses to environmental stresses. Silva et al (2017), evaluating the influence of salicylic acid on sesame germination under water stress, found that the use of 10 µM in seed treatment promoted greater tolerance during the initial development under water stress conditions, due to the action of the acid on the antioxidant system of the tissues.…”

Section: Cmentioning

confidence: 99%

Salicylic acid in the physiological priming of onion seeds subjected to water and salt stresses

Silva

Paiva

Leite

et al. 2019

Rev. bras. eng. agríc. ambient.

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This study aimed to evaluate the effect of physiological priming with salicylic acid on the mitigation of water and salt stresses on onion (Allium cepa L.) seeds. For this, seeds of onion, cultivar IPA 11, were soaked in salicylic acid solution (50 µM) for 24 h and placed to germinate at different water and saline potentials. For water stress, the experiment was conducted in a completely randomized design, in a 2 x 5 factorial scheme (salicylic acid with 0 and 50 µM and osmotic potentials of 0, -0.1, -0.2, -0.3, -0.4 MPa induced by polyethylene glycol 6000), with four repetitions of 50 seeds per plot. In salt stress, the adopted experimental design was completely randomized, with treatments distributed in a 2 x 4 factorial scheme (salicylic acid at concentrations of 0 and 50 µM and the osmotic potentials of 0, -0.3, -0.6 and -0.9 MPa induced by NaCl), in four repetitions of 50 seeds. For both experiments, germination, growth and accumulation of organic solutes were evaluated. Salicylic acid did not stimulate the germination of onion seeds in the absence of stress, but the application of 50 µM of salicylic acid increased the germination speed, growth and dry matter accumulation under conditions of water and salt stress. Onion plants were efficient in performing osmotic adjustment up to the potentials of -0.2 MPa induced by PEG 6000 under water stress and of -0.4 MPa induced by NaCl under salt stress.

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“…Plants have developed many strategies to maintain growth when water availability is restricted or inconsistent (Silva et al, 2016), such as ionic homeostasis and activation of the enzyme antioxidant system, to promote cell detoxification and growth regulation (Zhu, 2001;Silva et al, 2017). However, these responses are generally more pronounced in genotypes that are tolerant to water deficit.…”

Section: Introductionmentioning

confidence: 99%

Germination and Seedling Growth of Genotypes Crambe abyssinica Submitted to Water Deficit

Braga¹,

Martins²,

Pacheco³

et al. 2019

JAS

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Determining drought tolerance in plants is an increasingly important feature due to the reduction of water resources, since water stress is one of the main environmental factors that limit agricultural growth and productivity. The objective of this study was to evaluate the tolerance of crambe (Crambe abyssinica Hochst) genotypes submitted to water stress induced by polyethylene glycol during germination and early growth of seedlings. A randomized block experimental design was used in a factorial scheme consisting of five crambe genotypes (FMS Brilhante, FMS CR 1203, 1307, 1312 and 1326) and five levels of osmotic potential [0.0 (control), -0.2, -0.4, -0.5 and -0.6 MPa] in five replicates of 40 seeds. Germination rate (%), normal seedling development (%), germination speed index, root and shoot length, total fresh matter, and water content of seedlings (%) were analyzed. Physiological quality of seeds and initial development of crambe genotypes was improved in the group submitted to Ψw = -0.2 MPa. Germination and vigor index of crambe seeds were hampered by reduction of the potential to -0.4 MPa. The genotype FMS CR 1203 was the most tolerant to water stress, whereas FMS CR 1307 and 1312 were the most sensitive, as corroborated by PCA.

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Salicylic acid as attenuator of drought stress on germination and initial development of sesame

Cited by 38 publications

References 9 publications

Phytohormones and Beneficial Microbes: Essential Components for Plants to Balance Stress and Fitness

Phytohormones and Beneficial Microbes: Essential Components for Plants to Balance Stress and Fitness

Salicylic acid in the physiological priming of onion seeds subjected to water and salt stresses

Germination and Seedling Growth of Genotypes Crambe abyssinica Submitted to Water Deficit

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