Effects of melatonin, proline, and salicylic acid on seedling growth, photosynthetic activity, and leaf nutrients of sorghum under salt stress

Plant Direct, Journal Year: 2024, Volume and Issue: 8(3)

Published: March 1, 2024

Abstract Soil salinization poses a significant challenge to the sustainability and productivity of agriculture worldwide. This issue continues hinder plant growth, requiring innovative solutions alleviate salt stress. Moreover, climate change accelerates soil salinization, which may soon spread previously unaffected agricultural areas. Therefore, present study evaluated potential role different seed priming agents (hydro (H), salicylic acid (SA), proline (P), melatonin (MEL)) on seedlings leaf macro micronutrients sorghum grown under four (.27, 2.5, 5.0, 8.0 dS m −1 ) salinity conditions. drastically reduced all growth parameters seedlings, primarily reduction in traits, was remarkable after 2.5 salinity. In addition, height, shoot fresh weight, stomata were by 40.8%, 74.6%, 36.5%, respectively, at compared .27 . SA‐ MEL‐primed seeds mitigated harmful effects reducing Na + accumulation leaves increasing K /Na Ca 2+ ratios photosynthetic activity However, Zn , Mn Cu contents increased with salinity, these nutrients also improved SA, MEL, P. Considering nutrients, had better macro‐ micro‐nutrient uptake capacities than H, P treatments high Finally, showed that MEL‐induced improvement tolerance related enhanced nutritional status, activity, biomass production salinized

Language: Английский

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Phenotyping and metabolomics insights into the effect of melatonin in lettuce under non‐stress and salinity conditions

Physiologia Plantarum, Journal Year: 2025, Volume and Issue: 177(1)

Published: Jan. 1, 2025

Abstract Melatonin (MLT) is an indole derivative that exhibits hormone‐like activities in plants, regulating multiple aspects of growth and development. Due to its role mitigating oxidative stress facilitating osmoprotectant accumulation, MLT enhances abiotic tolerance, although the pathways metabolic mechanisms involved remain unclear despite being studied various crops. This work aimed investigate changes elicited by exogenous application at different concentrations (10, 50, 150 μM) salinity Lactuca sativa L. through metabolomics phenotyping approaches. Our results clearly indicated increases photosynthetic efficiency high dosage (150 either early or late conditions ( p < 0.01). Untargeted provided insight into significant effect 0.01 both cases, according multivariate chemometrics), mediated a broad reprogramming involving secondary metabolism, phytohormones, fatty acids amino biosynthesis. In detail, μM induced adjustment phytohormones profile reduce salinity‐induced damages. findings support well‐known potential melatonin alleviating stress. These address existing challenges studying molecular effects stress, providing insights biochemical drive effectiveness. this sense, further research acknowledged provide multidisciplinary throughput perspective leading exploitation wide range crops agricultural economic importance.

Language: Английский

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Exogenous Autolysis Peptide from Earthworm (Eisenia Foelide) Enhances Salinity Tolerance of Cucumber in Greenhouse

Published: Jan. 1, 2024

Language: Английский

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Foliar Application of Thidiazuron Alleviates Cd Toxicity by Modulating Stress Enzyme Activities and Stimulating Pigment Biosynthesis in Cajanus cajan (L.)

Journal of Plant Growth Regulation, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 14, 2024

Language: Английский

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