Melatonin Role in Plant Growth and Physiology under Abiotic Stress

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(10), P. 8759 - 8759

Published: May 15, 2023

Phyto-melatonin improves crop yield by mitigating the negative effects of abiotic stresses on plant growth. Numerous studies are currently being conducted to investigate significant performance melatonin in crops regulating agricultural growth and productivity. However, a comprehensive review pivotal phyto-melatonin morpho-physiological biochemical activities under needs be clarified. This focused research activities, regulation, redox status, signal transduction plants stresses. Furthermore, it also highlighted role defense systems as biostimulants stress conditions. The study revealed that enhances some leaf senescence proteins, protein further interacts with plant’s photosynthesis activity, macromolecules, changes response stress. Our goal is thoroughly evaluate stress, which will help us better understand mechanism regulates yield.

Language: Английский

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Mitigation of cadmium-induced stress in maize via synergistic application of biochar and gibberellic acid to enhance morpho-physiological and biochemical traits

BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)

Published: March 15, 2024

Abstract Cadmium (Cd), being a heavy metal, tends to accumulate in soils primarily through industrial activities, agricultural practices, and atmospheric deposition. Maize, staple crop for many regions, is particularly vulnerable Cd contamination, leading compromised growth, reduced yields, potential health risks consumers. Biochar (BC), carbon-rich material derived from the pyrolysis of organic matter has been shown improve soil structure, nutrient retention microbial activity. The choice biochar as an ameliorative agent stems its well-documented capacity enhance quality mitigate metal stress. study aims contribute understanding efficacy combination with GA 3 , plant growth regulator known role promoting various physiological processes, mitigating adverse effects detailed investigation into morpho-physiological attributes biochemical responses under controlled laboratory conditions provides valuable insights benefits these interventions. experimental design consisted three replicates complete randomized (CRD), wherein soil, each containing 10 kg was subjected varying concentrations cadmium (0, 8 16 mg/kg) (0.75% w/w base). Twelve different treatment combinations were applied, involving cultivation 36 maize plants contaminated (T1: Control (No stress; T2: Mild stress (8 mg Cd/kg soil); T3: Severe (16 T4: ppm stress); T5: + T6: T7: 0.75% T8: T9: T10: T11: T12: GA3 stress). combined application BC significantly enhanced multiple parameters including germination (27.83%), root length (59.53%), shoot (20.49%), leaf protein (121.53%), (99.93%), (33.65%), phenolics (47.90%), (25.82%), (25.85%), chlorophyll (57.03%), b (23.19%), total (43.77%), malondialdehyde (125.07%), (78.03%) (131.16%) across levels compared control group. synergistic effect manifested optimal indicating induced tolerance mitigation detrimental impact on growth. enriched showed resistance toxicity emphasizing viable strategy enhancing gibberellic acid emerges effective means cadmium-induced maize, presenting promising avenue sustainable practices.

Language: Английский

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Seed priming and abiotic stress tolerance in carrot: Unraveling the mechanisms of improved germination

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(2), P. e0318753 - e0318753

Published: Feb. 7, 2025

Climate change necessitates the development of improved crops capable withstanding future weather patterns. Carrots (Daucus carota L.), a crucial vegetable crop global importance, face unique challenges in seed germination and seedling due to their complex pollination biology outcrossing reproduction mode with severe inbreeding depression if selfed. This study investigated effects salinity drought stress on carrot development, focus roles priming, cellular processes inhibitors, biochemical responses. Seed priming agents were hypothesized enhance tolerance by modulating specific pathways, such as improving osmotic balance, enhancing antioxidant defense mechanisms, activating stress-responsive genes. We also that pathways influence early growth seeds under or stress. To test hypothesis, we evaluated various (e.g., water, NaCl, PEG, GA3) rates vigor. Additionally, impact inhibitors (actinomycin D-inhibitor transcription, cycloheximide-inhibitor translation, hydroxyurea-inhibitor DNA synthesis, cytochalasin-inhibitor actin polymerization) conditions. Biochemical responses, including reactive oxygen species (ROS) levels enzyme activities, analyzed identify genotype-specific adaptations indicative tolerance. Our results revealed significant variability among studied experimental lines commercial cultivars enhanced vigor up 35% 28% stress, notable differences observed across agents. The application highlighted involvement regulation For instance, actinomycin D reduced 40% analyses indicated variations ROS activities superoxide dismutase peroxidase. increased 50% whereas varied substantially genotypes. These findings underscored importance conferring seedlings. Future research integrating omics approaches transcriptomics, proteomics, metabolomics) will provide deeper insights into molecular mechanisms regulate tolerance, aid more resilient varieties suitable for cultivation adverse environmental

Language: Английский

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Seed Priming as an Effective Technique for Enhancing Salinity Tolerance in Plants: Mechanistic Insights and Prospects for Saline Agriculture with a Special Emphasis on Halophytes

Seeds, Journal Year: 2025, Volume and Issue: 4(1), P. 14 - 14

Published: March 7, 2025

Seed priming is a simple, inexpensive, and effective pre-sowing technique that enables plants to better tolerate abiotic stresses, including high soil salinity, which major limiting factor in the establishment of halophytes for saline agriculture, as germinating seeds early seedlings many are sensitive compared mature vegetative stage. This article attempts provide an overview research on seed effects halophyte subsequent seedlings/plants. Different physio-chemical molecular processes, induction priming/stress memory, enhance salinity tolerance following priming, have also been discussed. review covers aspects reactive oxygen species (ROS), nitric oxide (NO) signaling(s) activated result priming. Finally, limitations prospects agronomic potential agriculture

Language: Английский

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Impact of a biostimulant enriched in betalain degradation products on ROS signaling, proline accumulation, and phytohormone homeostasis

Current Plant Biology, Journal Year: 2024, Volume and Issue: 39, P. 100373 - 100373

Published: July 22, 2024

This study investigates the potential of a biostimulant derived from Selenicereus undatus peel waste and enriched in betalain degradation products (BDP), to influence Arabidopsis thaliana seedling development. Notably, lower BDP concentrations enhanced development, while higher dosages exhibited adverse effects. Assessment mitochondrial activity both seeds purified organelles showed that tested did not affect or integrity, highlighting its independence performance. Mechanistically, BDP-enriched modulated ROS-signaling, diminishing H2O2 by regulating enzymatic gene expression SOD, CAT, GPX, GR. Particularly, analyzing their different isoform via qRT-PCR, primary cellular compartment where detoxification occurred were identified. Furthermore, was able proline-accumulation, altering metabolism (PC5S, P5CR OAT) catabolism (PDH P5CDH) related genes. Finally, altered phytohormone levels, mainly affecting ABA/ABA-glu, tZea/tZea-rib, tZea/IAA. Concerning GAs, increase GA4 GA7 suggested an involvement GA13ox, hypothesis encouraged qRT-PCR analysis. In summary, this underscores BDP-based as sustainable promoters plant growth, influencing critical regulatory pathways during germination. Further research is necessary explore extensive applications agricultural practices.

Language: Английский

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Transcriptomic and Physiological Studies Unveil that Brassinolide Maintains the Balance of Maize’s Multiple Metabolisms under Low-Temperature Stress

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(17), P. 9396 - 9396

Published: Aug. 29, 2024

Low-temperature (LT) is one of the major abiotic stresses that restrict growth and development maize seedlings. Brassinolides (BRs) have been shown to enhance LT tolerance in several plant species; physiological molecular mechanisms by which BRs are still unclear. Here, we characterized changes physiology transcriptome N192 Ji853 seedlings at three-leaf stage with or without 2 μM 2,4-epibrassinolide (EBR) application 25 15 °C environments via high-performance liquid chromatography RNA-Sequencing. Physiological analyses revealed EBR increased antioxidant enzyme activities, enhanced cell membrane stability, decreased malondialdehyde formation, inhibited reactive oxygen species (ROS) accumulation under stress; meanwhile, also maintained hormone balance increasing indole-3-acetic acid gibberellin 3 contents decreasing abscisic level stress. Transcriptome analysis 332 differentially expressed genes (DEGs) enriched ROS homeostasis, signal transduction, mitogen-activated protein kinase (MAPK) cascade. These DEGs exhibited synergistic antagonistic interactions, forming a complex network maize. Additionally, weighted gene co-expression (WGCNA) 109 hub involved stress regulation pathways were discovered from four modules highest correlation target traits. In conclusion, our findings provide new insights into exogenous enhancing seedling stage, thus opening up possibilities for breeding program

Language: Английский

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Chitosan coating of seeds improves the germination and growth performance of plants: A Rreview

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 278, P. 134750 - 134750

Published: Aug. 31, 2024

Language: Английский

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French marigold (Tagetes patula) flavonoid extract-based priming ameliorates initial drought stress on Oryza sativa var indica, cultivar Satabdi (IET4786): a sustainable approach to avoid initial drought stress

Zeitschrift für Naturforschung C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Abstract Drought stress remains a serious concern in Oryza sativa L. var indica , cultivar Satabdi (IET4786) production, particularly during the earliest growth phases, ultimately affecting yield due to recent trend of delayed rain arrival West Bengal, India. This study aimed develop cost-effective strategy improve drought tolerance capacity rice seedlings by priming seeds with flavonoid-enriched extract (FEE) French marigold ( Tagetes patula ) petals withstand initial milieu. The morpho-physiological and biochemical responses were evaluated perceive efficacy alleviating water stress-induced untoward effects. findings revealed that mechanical IET4786 FEE (50 mg/mL for 30 min) significantly improved seedling survival against 14 days. After 24 h recovery from stress, primed seed-derived exhibited morphological, physiological, biochemical, redox parameters compared derived unprimed under net house conditions. In search mechanistic insights, seed increased proline content endorsing Δ 1 -pyrroline-5-carboxylate synthetase activities, endorsed methylglyoxal clearance homeostasis improving glyoxalase I II activities through restoring glutathione (GSH) level, enhanced polyamine accumulation leaves endure stress.

Language: Английский

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Expanding the cryoprotectant toolbox in biomedicine by multifunctional antifreeze peptides

Biotechnology Advances, Journal Year: 2025, Volume and Issue: unknown, P. 108545 - 108545

Published: Feb. 1, 2025

Language: Английский

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Development of a highly efficient seeding breeding system of Notopterygium incisum

Plant Biotechnology Reports, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Language: Английский

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