Exogenous melatonin increases salt tolerance in bitter melon by regulating ionic balance, antioxidant system and secondary metabolism-related genes

BMC Plant Biology, Journal Year: 2022, Volume and Issue: 22(1)

Published: July 30, 2022

Abstract Background Melatonin is a multi-functional molecule widely employed in order to mitigate abiotic stress factors, general and salt particular. Even though previous reports revealed that melatonin could exhibit roles promoting seed germination protecting plants during various developmental stages of several plant species under stress, no are available with respect the regulatory acts on physiological biochemical status as well expression levels defense- secondary metabolism-related related transcripts bitter melon subjected stress. Results Herewith present study, we performed comprehensive analysis ion balance, antioxidant system, transcript defense-related genes ( WRKY1 , SOS1, PM H + -ATPase, SKOR, Mc5PTase7 SOAR1 ) gene MAP30, α-MMC polypeptide-P PAL salt-stressed Momordica charantia L.) response treatment. In this regard, different (0, 75 150 µM) were applied salinity 50 100 mM NaCl) melon. Accordingly, findings decreased growth photosynthesis parameters (SPAD, Fv / Fo Y(II)), RWC, some nutrient elements (K Ca 2+ P), while it increased Y(NO), Y(NPQ), proline, Na Cl − 2 O MDA, enzyme activity, lead induction examined genes. However, prsiming µM SPAD, K P concentration MDA addition, system by (150 µM). Conclusions Overall, can be postulated application has effective alleviating adverse impacts through critical modifications metabolism.

Language: Английский

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Function, Mechanism, and Application of Plant Melatonin: An Update with a Focus on the Cereal Crop, Barley (Hordeum vulgare L.)

Antioxidants, Journal Year: 2022, Volume and Issue: 11(4), P. 634 - 634

Published: March 25, 2022

Melatonin is a multiple-function molecule that was first identified in animals and later plants. Plant melatonin regulates versatile processes involved plant growth development, including seed germination, root architecture, flowering time, leaf senescence, fruit ripening, biomass production. Published reviews on have been focused two model plants: (1) Arabidopsis (2) rice, which the natural contents are quite low. Efforts to integrate function mechanism of determine how benefits human health also lacking. Barley unique cereal crop used for food, feed, malt. In this study, bioinformatics analysis identify genes required barley biosynthesis performed, after effects exogenous development were reviewed. Three integrated mechanisms cells found: serving as an antioxidant, modulating hormone crosstalk, (3) signaling through putative receptor. Reliable approaches characterizing biosynthetic modulate grains discussed. The present paper should be helpful improvement production under hostile environments reduction pesticide fungicide usage cultivation. This study beneficial enhancement nutritional values healthcare functions food industry.

Language: Английский

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Melatonin-mediated endogenous nitric oxide coordinately boosts stability through proline and nitrogen metabolism, antioxidant capacity, and Na+/K+ transporters in tomato under NaCl stress

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: March 13, 2023

The interactions between nitric oxide (NO) and melatonin in alleviating sodium chloride (NaCl) toxicity plants are poorly comprehended. Here, the associations exogenous application of endogenous NO levels inducing tomato seedlings' defense response during NaCl were investigated. results indicated that (150 μM) increased height (23.7%) biomass (32.2%), improved chlorophyll (a (137%) b (92.8%)), proline metabolisms, reduced contents superoxide anion radicals (49.6%), hydrogen peroxide (31.4%), malondialdehyde (38%), electrolyte leakage (32.6%) 40-day-old seedlings grown under mM) treatment. Melatonin antioxidant system NaCl-stressed by increasing activity enzymes. also N metabolism content upregulating enzymes implicated assimilation. Furthermore, ionic balance Na NaCl-exposed expression genes involved K/Na ratio homeostasis (NHX1-4) accumulation mineral nutrients (P, N, Ca, Mg). However, addition cPTIO (100 μM; an scavenger) reversed beneficial impacts melatonin, indicating effective function melatonin-induced mechanisms seedlings. Therefore, our revealed improves tolerance mediating internal NO.

Language: Английский

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Melatonin Mitigates Salt-Induced Growth Inhibition Through the Regulation of Carbohydrate and Nitrogen Metabolism in Tomato Seedlings

Journal of soil science and plant nutrition, Journal Year: 2023, Volume and Issue: 23(3), P. 4290 - 4308

Published: July 5, 2023

Language: Английский

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The role of phytomelatonin receptor 1-mediated signaling in plant growth and stress response

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: March 10, 2023

Phytomelatonin is a pleiotropic signaling molecule that regulates plant growth, development, and stress response. In cells, phytomelatonin synthesized from tryptophan via several consecutive steps are catalyzed by decarboxylase (TDC), tryptamine 5-hydroxylase (T5H), serotonin N -acyltransferase (SNAT), -acetylserotonin methyltransferase (ASMT) and/or caffeic acid-3- O -methyltransferase (COMT). Recently, the identification of receptor PMTR1 in Arabidopsis has been considered turning point research, with function signal emerging as receptor-based regulatory strategy. addition, homologs have identified species found to regulate seed germination seedling stomatal closure, leaf senescence, responses. this article, we review recent evidence our understanding PMTR1-mediated pathways under environmental stimuli. Based on structural comparison melatonin 1 (MT1) human homologs, propose similarity three-dimensional structure receptors probably represents convergent evolution recognition different species.

Language: Английский

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