Effect of methyl jasmonate treatments on alleviation of polyethylene glycol -mediated water stress in banana (Musa acuminata cv. ‘Berangan’, AAA) shoot tip cultures

Mahmood, Maziah; Bidabadi, Siamak Shirani; Ghobadi, Cyrus; Gray, D. J.

doi:10.1007/s10725-012-9702-6

Cited by 70 publications

(31 citation statements)

References 35 publications

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“…Moreover, similarly to the results reported by other scientists (Wu et al 2012;Mahmood et al 2012), in the present study RWC showed no significant difference between the control and the 10 lM MJ-treated plants, suggesting that the MJ treatment did not induce osmotic stress (Wu et al 2012). On the other hand, excess of Cu is known to decrease RWC (Marschner 1995), and in our research a significantly lower RWC was detected after Cu supplementation.…”

Section: Discussionsupporting

confidence: 91%

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

2015

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Phaseolus coccineus plants in the early growth stage were preincubated with 10 -5 M methyl jasmonate (MJ) for 1 or 24 h and subsequently transferred to a Hoagland solution or treated with 50 or 100 lM copper (Cu). After 6-day exposure to the metal, plant growth, relative water content, electrolyte leakage, the content of Cu and photosynthetic pigments, and chlorophyll fluorescence parameters were assayed. Generally, under Cu excess, MJ did not modulate growth parameters such as leaf area, root growth, shoot and root fresh weight, and the shoot/root fresh weight ratio. The content of chlorophyll a, b, and carotenoids increased with the increasing Cu content in the leaves. However, a correlation between the reduction of the leaf area and the lower content of the three photosynthetic pigments for 24-h MJ ? 100-lM Cu treatment compared with metal alone was noted. The decrease in the Cu concentration was MJ-dependent only after 1-h MJ ? 50-lM Cu treatment in leaves and after 24-h MJ ? 100-lM Cu treatment in roots. Chlorophyll fluorescence was a weak indicator of the effect induced by MJ in Cu excess, and the most spectacular increase was observed for 1-h and 24-h MJ ? 50 lM Cu in the LNU and for 1-h MJ ? 50 lM Cu in the NPQ parameter. These results suggested a lack of a clear pattern for MJ altering the Cu stress in the runner bean plants. The most important finding was that photosynthesis seemed to be quite resistant to Cu stress and slight modifications in chlorophyll fluorescence were accompanied by significant changes in growth parameters, photosynthetic pigment content, and metal content in the plant. The results obtained may have been strongly related to the plant growth stage, as the measured parameters transform greatly during plant growth and development.

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Section: Discussionsupporting

confidence: 91%

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

2015

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“…Water‐deficient stress is known to induce oxidative stress by increasing the levels of H 2 O 2 and

O_{2}^{∙ -}

in stressed plant tissues. The excess ROS caused by water‐deficient stress resulted in increased MDA content and conductivity of solute leakage from plant cells, which were considered markers for membrane lipid peroxidation . Lipid peroxidation in biological membranes causes impaired membrane function, decreased fluidity, and inactivation of membrane‐bound receptors and enzymes.…”

Section: Discussionmentioning

confidence: 99%

“…In the present study, the amount of proline in the plants treated with melatonin was considerably higher than that in plants that were not treated with melatonin under drought conditions, suggesting that melatonin may lessen the adverse effect of water-deficient stress on grape cuttings. The accumulation of proline under stress conditions in plants is correlated with stress tolerance [64,65], and the osmoregulatory role that proline plays in overcoming water-deficient stress conditions has been shown previously in canola leaf disks, apple, sweet cherry, and banana shoot tip cultures [52,[66][67][68]. Crop plants react to water deficits by changing some physiological and biochemical attributes in ways that enable them to tolerate drought stress [69].…”

Section: Discussionmentioning

confidence: 99%

“…The grape cuttings treated with melatonin maintained higher levels of soluble protein than did those that were not pretreated with melatonin under stressed conditions. Chlorophyll is also extremely sensitive to water deficit, and a reduction in chlorophyll levels due to water deficit stress has been reported in several plant species (e.g., apple [25], cucumber [26], banana [52], eggplant [70]). Melatonin application enhanced the amount of chlorophyll in the plants by neutralizing the inhibitory effect of water deficit stress on pigmentation (Fig.…”

Section: Discussionmentioning

confidence: 99%

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The ameliorative effects of exogenous melatonin on grape cuttings under water‐deficient stress: antioxidant metabolites, leaf anatomy, and chloroplast morphology

Meng

Wang

et al. 2014

Journal of Pineal Research

271

196

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Grapes are an important economic crop and are widely cultivated around the world. Most grapes are grown in arid or semi-arid regions, and droughts take a heavy toll in grape and wine production areas. Developing effective drought-resistant cultivation measures is a priority for viticulture. Melatonin, an indoleamine, mediates many physiological processes in plants. Herein, we examined whether exogenously applied melatonin could improve the resistance of wine grape seedlings grown from cuttings to polyethylene glycol-induced water-deficient stress. The application of 10% polyethylene glycol (PEG) markedly inhibited the growth of cuttings, caused oxidative stress and damage from H2 O2 and O2∙-, and reduced the potential efficiency of Photosystem II and the amount of chlorophyll. Application of melatonin partially alleviated the oxidative injury to cuttings, slowed the decline in the potential efficiency of Photosystem II, and limited the effects on leaf thickness, spongy tissue, and stoma size after application of PEG. Melatonin treatment also helped preserve the internal lamellar system of chloroplasts and alleviated the ultrastructural damage induced by drought stress. This ameliorating effect may be ascribed to the enhanced activity of antioxidant enzymes, increased levels of nonenzymatic antioxidants, and increased amount of osmoprotectants (free proline). We conclude that the application of melatonin to wine grapes is effective in reducing drought stress.

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“…For example, SA is involved in leaf gas exchange (photosynthesis rate, stomatal conductance), water relations, and modulates plant response to environmental stress [50]. In turn, JA promotes several mechanisms to stress acclimation such as plant growth, morphological changes and proline accumulation [51,52]. Finally, BR can regulate stomatal closure and leaf senescence, and favor plant resistance to stress agents [53,54].…”

Section: Introductionmentioning

confidence: 99%

Physiological Responses to the Foliar Application of Synthetic Resistance Elicitors in Cape Gooseberry Seedlings Infected with Fusarium oxysporum f. sp. physali

Chávez-Arias

Gómez-Caro

Restrepo-Díaz

2020

Plants

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Vascular wilt caused by Fusarium oxysporum is the most limiting disease that affects cape gooseberry (Physalis peruviana L.) crops in Colombia. The use of synthetic elicitors for vascular wilt management is still scarce in Andean fruit species. The objective of the present study was to evaluate the effect and number of foliar applications of synthetic elicitors such as jasmonic acid (JA), salicylic acid (SA), brassinosteroids (BR), or a commercial resistance elicitor based on botanical extracts (BE) on disease progress and their effect on the physiology of cape gooseberry plants inoculated with F. oxysporum f. sp. physali. Groups of ten plants were separately sprayed once, twice, or three times with a foliar synthetic elicitor, respectively. Elicitor applications were performed at the following concentrations: JA (10 mL L−1), SA (100 mg L−1), BR (1 mL L−1) and BE (2.5 mL of commercial product (Loker®) L−1). The results showed that three foliar BR, SA, or BE applications reduced the area under the disease progress, severity index, and vascular browning in comparison to inoculated plants without any elicitor spray. Three BR, SA, or BE sprays also favored stomatal conductance, water potential, growth (total dry weight and leaf area) and fluorescence parameters of chlorophyll compared with inoculated and untreated plants with no elicitor sprays. Three foliar sprays of SA, BR, or BE enhanced photosynthetic pigments (leaf total chlorophyll and carotenoid content) and proline synthesis and decreased oxidative stress in Foph-inoculated plants. In addition, the effectiveness of three foliar BR, SA, or BE sprays was corroborated by three-dimensional plot and biplot analysis, in which it can evidence that stomatal conductance, proline synthesis, and efficacy percentage were accurate parameters to predict Foph management. On the hand, JA showed the lowest level of amelioration of the negative effects of Foph inoculation. In conclusion, the use of the synthetic elicitors BR, SA, or BE can be considered as a tool complementary for the commercial management of vascular wilt in areas where this disease is a limiting factor.

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Effect of methyl jasmonate treatments on alleviation of polyethylene glycol -mediated water stress in banana (Musa acuminata cv. ‘Berangan’, AAA) shoot tip cultures

Cited by 70 publications

References 35 publications

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

The ameliorative effects of exogenous melatonin on grape cuttings under water‐deficient stress: antioxidant metabolites, leaf anatomy, and chloroplast morphology

Physiological Responses to the Foliar Application of Synthetic Resistance Elicitors in Cape Gooseberry Seedlings Infected with Fusarium oxysporum f. sp. physali

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