Melatonin Affects Peucedanum praeruptorum Vegetative Growth and Coumarin Synthesis by Modulating the Antioxidant System, Photosynthesis, and Endogenous Hormones DOI

Xiaoting Wan,

Yingyu Zhang, Guoyu Wang

et al.

Journal of Pineal Research, Journal Year: 2024, Volume and Issue: 76(8)

Published: Nov. 1, 2024

ABSTRACT The dried root of Peucedanum praeruptorum is often used medicinally and has high pyran‐ furanocoumarin content. Although exogenous melatonin (MT) impacts the regulation plant growth, stress responses, secondary metabolism, etc., it remains unclear whether MT regulates vegetative growth development P. . Thus, aim current study to characterize effects different concentrations on physiological functions, photosynthesis, antioxidant systems, hormone induction, coumarin synthesis Different exert distinct regulatory expression genes related synthesis. Treatment with low increases photosynthesis leaf compared control, while reduce vitality elongation decrease photosynthetic system genes. Low also significantly increase enzyme activity pigment content modulate levels IAA, gibberellic acid, salicylic jasmonic abscisic endogenous MT. Moreover, enzymes tryptophan decarboxylase, hydroxylase, tryptamine‐5‐hydroxylase, serotonin N ‐acetyltransferase, acetylserotonin O ‐methyltransferase, caffeic acid promotes accumulation isoscopoletin, scopoletin, peucedanocoumarin II, praeruptorin A, B, E. upregulates most associated synthesis, including PAL1 , C4H 4CL‐3 C3H‐1 F6H‐1 CCoAMT OMT‐1 CYP71AJ1 CYP84A1‐1 S8H‐1 PT‐1 COSY‐1 These findings demonstrate that may improve promoting components.

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
Proteomic and physiological analyses reveal the mechanisms through which melatonin ameliorates heat stress-induced photoinhibition in Nicotiana tabacum DOI
Xiliang Song, Yang Liu, Shuai Liu

et al.

Plant Physiology and Biochemistry, Journal Year: 2025, Volume and Issue: 221, P. 109665 - 109665

Published: Feb. 19, 2025

Language: Английский

Citations

1
Plant development and heat stress: role of exogenous nutrients and phytohormones in thermotolerance DOI Creative Commons
Prodipto Bishnu Angon, Arpan Das, A. Roy

et al.

Discover Plants., Journal Year: 2024, Volume and Issue: 1(1)

Published: Sept. 17, 2024

Language: Английский

Citations

5
Melatonin-Induced Transcriptome Variation of Sweet Potato Under Heat Stress DOI Creative Commons
Mengzhao Wang, Yang Zhou,

Bei Liang

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(3), P. 430 - 430

Published: Feb. 1, 2025

Melatonin (MT) has been widely recognized for its ability to mitigate the effects of abiotic stress and regulate plant development. In this study, we investigated role exogenous MT in enhancing heat tolerance sweet potato, with a particular focus on capacity alleviate stress-induced damage. treatment significantly reduced oxidative stress, as evidenced by decreased levels hydrogen peroxide, superoxide ions, malondialdehyde (MDA), all which were elevated under stress. To uncover underlying mechanisms, RNA sequencing was performed three experimental groups: control (CK), alone (HS), pre-treatment followed (MH). A total 3491, 3280, 1171 differentially expressed genes (DEGs) identified CK vs. HS, MH, HS MH comparisons, respectively. notably modulated expression involved redox regulation nicotinate nicotinamide metabolism. Moreover, enhanced associated key signaling pathways, including mitogen-activated protein kinases (MPK3) hormone signal transduction components, such ethylene response factor (ERF). These findings offer novel insights into mechanisms enhances highlighting regulating antioxidant systems, metabolic signaling. This study presents valuable strategies improving crop resilience

Language: Английский

Citations

0
Enhancing saline-alkali tolerance in cucumber seedlings: The role of exogenous melatonin in redox homeostasis and stomatal function DOI Creative Commons

Shuchao Huang,

Peng Wu,

Xiting Yang

et al.

Plant Stress, Journal Year: 2025, Volume and Issue: unknown, P. 100789 - 100789

Published: March 1, 2025

Language: Английский

Citations

0
Multiple functions of exogenous melatonin in cucumber seed germination, seedling establishment, and alkali stress resistance DOI Creative Commons
Qiuxia Li, Yiqiu Zhang, Yu Liu

et al.

BMC Plant Biology, Journal Year: 2025, Volume and Issue: 25(1)

Published: March 19, 2025

Abstract Background Exogenous melatonin plays a crucial role in various plant developmental processes and stress responses has considerable potential for future agricultural applications. However, its effects on early cucumber seedling growth resistance to alkaline have not been adequately explored. This study investigated the of exogenous during stages cucumber, specifically focusing seed germination, post-germination growth, 1-leaf stage with particular emphasis influence alkali resistance. These findings are intended enhance application cultivation provide theoretical basis promoting improving tolerance production. Results enhanced germination inhibitory at low high concentrations, respectively. varied different stages. Additionally, significantly hampered seedlings; however, external mitigated damage caused by this stress. protective effect was evidenced marked increase survival rate, stem diameter, biomass seedlings, along significant reduction malondialdehyde content electrolyte leakage rate. Further investigation revealed that promotes accumulation osmoregulatory substances, soluble sugars, proline, under It also enhances activities antioxidant enzymes, including peroxidase, superoxide dismutase, catalase, dehydroascorbate reductase, while decreasing reactive oxygen species such as H 2 O ⋅−. Furthermore, increased PM-H + -ATPase V-H stimulated expression stress-related genes, thereby regulating Na K homeostasis promoted synthesis endogenous cucumbers subjected inducing synthase namely, CsASMT , CsCOMT CsTDC CsSNAT . Conclusions establishment mediating osmotic adjustment, scavenging, ion maintenance, synthesis, genes.

Language: Английский

Citations

0
Auxin promotes cucumber resistance to high ambient temperature by enhancing photosystem and activating DNA repair pathways DOI Creative Commons
Bingwei Yu, Yuanzheng Lin,

Yuwei Gan

et al.

Horticultural Plant Journal, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

0
The mechanisms of melatonin action in shielding photosynthesis during heat stress DOI

Sheen Khan,

Sadaf Saify,

Adriano Sofo

et al.

CABI Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: July 17, 2024

Abstract The escalating global climate shifts lead to several negative impacts, including a continuous increase in average temperatures, imposing significant consequences on plant physiology, biochemical dynamics, and molecular processes. Central these ramifications is the process of photosynthesis, pivotal for carbohydrate synthesis essential sustaining growth amidst normal or stressful environmental conditions. Exposure heat stress (HS) negatively affects photosynthetic potential, primarily due increased reactive oxygen species, disrupting optimal functionality apparatus. Melatonin (MLT) has emerged as multifaceted signaling molecule exhibiting promising capabilities mitigating adverse effects abiotic HS plants. While substantial body literature addresses enhancement resilience various stresses using MLT, present review specifically focuses impact MLT photosynthesis during HS. It emphasizes MLT’s role regulating chlorophyll degradation, stomatal movement, safeguarding proteins, under This could be achieved by mechanisms enhancing transcription photosystem genes, activating antioxidant defenses, promoting xanthophyll cycle, modulating enzymes involved metabolism. Consequently, this aims enhance our understanding how mediates protection HS, offering insights development heat-tolerant crops.

Language: Английский

Citations

0
Melatonin Affects Peucedanum praeruptorum Vegetative Growth and Coumarin Synthesis by Modulating the Antioxidant System, Photosynthesis, and Endogenous Hormones DOI

Xiaoting Wan,

Yingyu Zhang, Guoyu Wang

et al.

Journal of Pineal Research, Journal Year: 2024, Volume and Issue: 76(8)

Published: Nov. 1, 2024

ABSTRACT The dried root of Peucedanum praeruptorum is often used medicinally and has high pyran‐ furanocoumarin content. Although exogenous melatonin (MT) impacts the regulation plant growth, stress responses, secondary metabolism, etc., it remains unclear whether MT regulates vegetative growth development P. . Thus, aim current study to characterize effects different concentrations on physiological functions, photosynthesis, antioxidant systems, hormone induction, coumarin synthesis Different exert distinct regulatory expression genes related synthesis. Treatment with low increases photosynthesis leaf compared control, while reduce vitality elongation decrease photosynthetic system genes. Low also significantly increase enzyme activity pigment content modulate levels IAA, gibberellic acid, salicylic jasmonic abscisic endogenous MT. Moreover, enzymes tryptophan decarboxylase, hydroxylase, tryptamine‐5‐hydroxylase, serotonin N ‐acetyltransferase, acetylserotonin O ‐methyltransferase, caffeic acid promotes accumulation isoscopoletin, scopoletin, peucedanocoumarin II, praeruptorin A, B, E. upregulates most associated synthesis, including PAL1 , C4H 4CL‐3 C3H‐1 F6H‐1 CCoAMT OMT‐1 CYP71AJ1 CYP84A1‐1 S8H‐1 PT‐1 COSY‐1 These findings demonstrate that may improve promoting components.

Language: Английский

Citations

0