Melatonin as a Modulator of MAPK Cascade and ROS-RNS Feedforward Loop During Plant Pathogen Interaction

Physiological and Molecular Plant Pathology, Journal Year: 2024, Volume and Issue: 133, P. 102367 - 102367

Published: July 26, 2024

Language: Английский

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Efficacy and mechanisms of seed priming with melatonin to enhance salinity tolerance

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 137 - 156

Published: Jan. 1, 2025

Language: Английский

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Metabolome and comparative genome provide insights into secondary metabolites generation of a rare karst‐growing Rhododendron in vitro culture

The Plant Journal, Journal Year: 2025, Volume and Issue: 121(3)

Published: Feb. 1, 2025

SUMMARY Rhododendron species have the potential to be rich in secondary metabolites with pharmaceutical or industrial value. However, there is a lack of comprehensive metabolome studies at genome level, particularly for unique and rare like bailiense , which exclusively grows karst environments Guizhou, southwest China. Recently, assembly data this was available. In study, nontargeted metabolomics employed investigate profile R. callus. The callus induced using 0.2 mg L −1 TDZ (Thidiazuron) + 0.1 IBA (3‐Indole butyric acid). A comparison between light‐treated calli dark‐cultured revealed differential accumulation metabolites, flavonoids, terpenoids, coumarins, hydroxycinnamic acids, known their beneficial effects such as antioxidant, anticancer, anti‐inflammatory properties. Proanthocyanidins, various health‐promoting effects, were found accumulate significantly calli. Light conditions promoted diterpene triterpene products, whereas darkness favored sesquiterpene products. Additionally, study demonstrated utilizing Agrobacterium transformation technology on suspension cells enhance metabolite production. Comparison molle that exhibited active ‘glycosyltransferase activity,’ possessed higher number copies monoterpene terpene synthases, contained high specific cytochrome P450 members (CYP71, CYP76, CYP79, CYP82, CYP736). This offers valuable insights strategies biosynthesis production significance.

Language: Английский

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Transcriptomic and metabolomic analyses unveil TaASMT3‐mediated wheat resistance against stripe rust by promoting melatonin biosynthesis

The Plant Journal, Journal Year: 2025, Volume and Issue: 122(2)

Published: April 1, 2025

SUMMARY Plants have evolved a series of complicated defense mechanisms to counteract pathogen invasions. Although many studies provided molecular evidence resistance proteins and downstream signal transduction networks, the by which plants resist pathogens remain poorly understood at metabolite level. Here, we performed transcriptomic analyses wheat leaves infected with Puccinia striiformis f. sp. tritici ( Pst ), causal agent stripe rust. Functional enrichment analysis identified differentially expressed genes (DEGs) revealed strongest responses 24 h post‐inoculation (hpi) in incompatible wheat– interaction system. Integrated metabolomics data hpi, found that amino acid metabolic pathways appeared be directly involved rust resistance. Among these, five abundant metabolites (DAMs) indole, tryptophan, tryptamine, N ‐Methylserotonin, 5‐Methoxyindoleacetate were enriched biosynthesis pathway melatonin, branch tryptophan metabolism. Subsequent UPLC‐MS/MS confirmed melatonin was highly accumulated system, but not compatible Exogenous treatment induced Pst. The most significantly upregulated biosynthesis‐related gene system TaASMT3 , encodes an acetylserotonin O ‐methyltransferase. Virus‐induced silencing knocking down reduced rust, further suggesting positive role . Taken together, these suggest during infection activate responses, offering new perspective for elucidation based on dynamics.

Language: Английский

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Melatonin in crop plants: from biosynthesis through pleiotropic effects to enhanced stress resilience

Journal of Applied Genetics, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Language: Английский

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