ABA and Melatonin: Players on the Same Field? DOI Open Access
Ivan A. Bychkov, N. V. Kudryakova, Elena S. Pojidaeva

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(22), P. 12266 - 12266

Published: Nov. 15, 2024

In plants, abscisic acid (ABA) and melatonin (MT) are conventionally treated as molecules mitigating stress responses. To understand the mechanisms of ABA–MT interplay, we examined effects ABA MT treatment in loss-of-function mutants Arabidopsis thaliana exposed to high light (HL) stress. constantly suppressed ASMT encoding N-acetylserotonin methyltransferase context differential responses other biosynthesis genes both wild type (WT) mutants. However, this response was absent mutant with disrupted ABI4. Given that promoter region contains several potential ABI4-binding elements, these data suggest can be a target gene for A role ABI4 interactions between is supported by finding constitutively derepressed signaling cand2 gpa1, which exhibited elevated steady state levels transcripts were not regulated either or melatonin. addition, abi4 showed increased modulations expression catabolic M2H M3H treatment, inferring transcription factor negative regulator ABA-dependent changes content. Furthermore, all tested impaired synthesis displayed compared WT, while contributed downregulation key genes. Collectively, our results act antagonistically, modulating metabolism interactions, studied severe (SLS).

Language: Английский

Melatonin: Discovery, Biosynthesis, Phytohormones Crosstalk, and Roles in Agricultural Crops under Abiotic Stress Conditions DOI

Parnika Jindal,

Krishan Kant, Navneet Kaur

et al.

Environmental and Experimental Botany, Journal Year: 2024, Volume and Issue: 226, P. 105942 - 105942

Published: Aug. 13, 2024

Language: Английский

Citations

16
Melatonin—Angel of Plant Growth Regulation and Protection DOI Creative Commons

Huanyu Cai,

Jie Li, Jun Li

et al.

Advanced Agrochem, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

2
Micro/nanoplastics: Critical review of their impacts on plants, interactions with other contaminants (antibiotics, heavy metals, and polycyclic aromatic hydrocarbons), and management strategies DOI

Ali Raza Khan,

Zaid Ulhassan, Guanlin Li

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 169420 - 169420

Published: Dec. 19, 2023

Language: Английский

Citations

41
Elucidating the Underlying Allelopathy Effects of Euphorbia jolkinii on Arundinella hookeri Using Metabolomics Profiling DOI Creative Commons

Xue Xiao,

Zili Ma, Kai Zhou

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(1), P. 123 - 123

Published: Jan. 3, 2025

Euphorbia jolkinii dominates the subalpine meadows in Shangri-La (Southwest China) owing to its potent allelopathic effects. However, effects underlying allelopathy require further characterization at physiological and molecular levels. In this study, physiological, biochemical, metabolic mechanisms E. were investigated using Arundinella hookeri as a receptor plant. The treatment of A. seedlings with aqueous extract (EJAE) disrupted their growth by inhibiting photosynthesis, disrupting oxidation systems, increasing soluble sugar accumulation chlorophyll synthesis. Collectively, causes severe impairment accompanied abnormal photosynthesis reduced biomass accumulation. Moreover, EJAE suppressed gibberellin, indoleacetic acid, zeatin, salicylic jasmonic acid levels while promoting abscisic Further metabolomic analyses identified numerous differentially abundant metabolites primarily enriched α-linolenic, phenylpropanoid, flavonoid biosynthesis pathways EJAE-treated seedlings. This study demonstrated that exhibits comprehensive on plants, including significant disruption endogenous hormone synthesis, inhibition an membrane changes crucial processes associated biosynthesis. Thus, our provides solid theoretical foundation for understanding regulatory allelopathy.

Language: Английский

Citations

0
Physio-biochemical and histological studies unveil ascorbic acid-induced protection in mungbean under salt stress DOI Creative Commons
Ashish Prajapati,

Tavisha Singh,

Harleen Kaur

et al.

Discover Plants., Journal Year: 2025, Volume and Issue: 2(1)

Published: March 7, 2025

Abstract Salinity stress poses a significant threat to agricultural productivity, particularly in regions with limited freshwater resources. Seed priming ascorbic acid has emerged as promising technique enhance salinity tolerance various crops. This study investigates the efficacy of seed mitigating mungbean. Seeds were primed different concentrations and exposed saline conditions during germination early growth stages. Parameters such percentage, seedling growth, chlorophyll content, antioxidant enzyme activity assessed evaluate impact on tolerance. Results demonstrated that significantly improved under compared non-primed seeds. The effectiveness showed concentration-dependent effects, higher providing greater mitigation stress. Pearson correlation analysis revealed associations among traits, offering insights into their interdependencies, which warrant further validation mechanistic understanding. Traits showing positive loading first two principal components identified pivotal for screening future research purposes. These findings underscore potential sustainable strategy mungbean other approach contributes towards food security promoting sustainability saline-affected regions. Graphical

Language: Английский

Citations

0
Enhancing drought resistance in Dracocephalum moldavica L. through mycorrhizal fungal inoculation and melatonin foliar application DOI Creative Commons
Behvar Asghari,

Marziyeh Hoseinzadeh,

Sudabeh Mafakheri

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 24, 2025

This research focused on improving the drought tolerance of Dracocephalum moldavica, a plant vulnerable to water stress, by exploring combined effects melatonin spray and mycorrhizal fungus Glomus intraradices inoculation. The experiment was designed as factorial randomized study evaluate plant's morphological, physiological, phytochemical responses under different conditions (100%, 75%, 50% field capacity). findings revealed that combination inoculation significantly improved morphological traits Moldavian balm conditions. Under severe (50% capacity), chlorophyll b levels increased 26.3% 35.5%, respectively, when both treatments were applied. Stress indicators, including electrolyte leakage malondialdehyde content, substantially reduced with simultaneous application symbiosis, indicating decreased cellular damage. Moreover, treatment resulted in highest activities antioxidant enzymes catalase peroxidase, suggesting these bolster oxidative stress defense mechanisms. Additionally, alone led an increase secondary metabolites like phenolic flavonoid compounds, which further amplified treatments. also observed significant alterations essential oil composition plant. Drought α-pinene, 1,8-cineole, borneol, increases even more pronounced Conversely, geraniol geranial treatment. Overall, this demonstrates can effectively enhance moldavica its physiological characteristics biochemical composition.

Language: Английский

Citations

0
Enhancing Salt Tolerance in Tomato Plants Through PEG6000 Seed Priming: Inducing Antioxidant Activity and Mitigating Oxidative Stress DOI Creative Commons
Nasratullah Habibi, Shafiqullah Aryan, Naveedullah Sediqui

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(9), P. 1296 - 1296

Published: April 25, 2025

Salt stress is a major constraint to crop productivity, negatively affecting plant physiology and fruit quality. This study hypothesized that seed priming with polyethylene glycol (PEG6000) might enhance antioxidant activity by mitigating oxidative in Solanum lycopersicum ‘Micro-Tom’ under salt stress. Seeds primed –1.2 MPa PEG6000 were grown Rockwool treated 0, 50, 100, 150, 200 mM NaCl. Primed plants showed 32% increase leaf potassium (K+) 28% decrease sodium (Na+) accumulation compared non-primed 150 Glucose, fructose, sucrose contents increased 25%, 22%, 19%, respectively, fruits, while citric acid decreased 15%. Malondialdehyde (MDA) electrolyte leakage reduced 35% 29%, moderate salinity. Antioxidant enzyme activities—SOD, POD, CAT, APX enhanced 30–45% 100 NaCl, controls. Abscisic (ABA) levels 40% roots Activities of polyamine-related enzymes (DAO, PAO, ADC) also rose significantly. Priming improved protein content 20% relative water 18%. These results suggest enhances tolerance boosting defense, regulating osmotic balance, improving ion homeostasis, offering viable strategy for sustaining tomato productivity

Language: Английский

Citations

0
Transcriptome Analysis Revealed the Possible Reasons for the Change of Ni Resistance in Rhus typhina after Spraying Melatonin DOI Creative Commons
Tongbao Qu,

Yinxi Ma,

Minqiang Yun

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(10), P. 1287 - 1287

Published: May 7, 2024

Melatonin (MT) plays an important role in alleviating the stress of soil heavy metal pollution on plants. However, its ability to improve tolerance

Language: Английский

Citations

2
Phytomelatonin As an Element of the Plant Hormonal System DOI
V. V. Kusnetsov, Ivan A. Bychkov, N. V. Kudryakova

et al.

Russian Journal of Plant Physiology, Journal Year: 2024, Volume and Issue: 71(4)

Published: Aug. 1, 2024

Language: Английский

Citations

2
Enhancing drought stress tolerance in horticultural plants through melatonin-mediated phytohormonal crosstalk DOI
Raphael Dzinyela, Delight Hwarari,

Kwadwo Nketia Opoku

et al.

Plant Cell Reports, Journal Year: 2024, Volume and Issue: 43(11)

Published: Oct. 28, 2024

Language: Английский

Citations

2