The Role of Polyphenols in Abiotic Stress Tolerance and Their Antioxidant Properties to Scavenge Reactive Oxygen Species and Free Radicals

Antioxidants, Journal Year: 2025, Volume and Issue: 14(1), P. 74 - 74

Published: Jan. 10, 2025

Plants have evolved complex mechanisms to cope with diverse abiotic stresses, the phenylpropanoid pathway playing a central role in stress adaptation. This produces an array of secondary metabolites, particularly polyphenols, which serve multiple functions plant growth, development, regulating cellular processes, and responses. Recent advances understanding molecular underlying metabolism revealed regulatory networks involving MYB transcription factors as master regulators their interactions signaling pathways. review summarizes our current polyphenol-mediated adaptations plants, emphasizing regulation function key compounds. We discussed how various including heat chilling stress, drought, salinity, light UV radiation, nanoparticles chemical heavy metal toxicity, modulate trigger accumulation specific polyphenolic The antioxidant properties these phenolic acids, flavonoids, anthocyanins, lignin, roles reactive oxygen species scavenging, neutralizing free radicals, membrane stabilization, osmotic adjustment are discussed. Understanding metabolic responses is crucial for developing stress-resilient crops improving agricultural productivity under increasingly challenging environmental conditions. provides comprehensive insights into integrating adaptation mechanisms, highlighting potential targets enhancing crop tolerance through adjustment.

Language: Английский

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Illuminating Cannabis sativa L.: The Power of Light in Enhancing C. sativa Growth and Secondary Metabolite Production

Plants, Journal Year: 2024, Volume and Issue: 13(19), P. 2774 - 2774

Published: Oct. 3, 2024

Light is crucial for higher plants, driving photosynthesis and serving as a powerful sensory signal that profoundly modulates growth, development, physiological functions, hormone activation, biochemical pathways. Various light parameters—quality, intensity, composition, photoperiod—exert tremendous influence on plant growth particularly in industrial hemp (Cannabis sativa L.). C. sativa, crop of historical significance unparalleled versatility, holds immense value the food, fiber, medicinal industries. The cultivation cannabis burgeoning controlled environments due to evolving healthcare regulations. Optimal conditions significantly enhance both yield harvest quality, notably increasing density apical inflorescences ratio inflorescence total aboveground biomass. metabolites, especially phenolic terpene compounds Phytocannabinoids like CBD (cannabidiol), THC (tetrahydrocannabinol), CBG (cannabigerol), possess value. Secondary metabolites predominantly accumulate trichomes female flowers surrounding sugar leaves, underscoring critical need boost weight metabolite concentrations while ensuring product consistency. Different parameters distinctly impact sativa’s metabolic profile, providing robust foundation understanding optimal synthesizing specific secondary metabolites. While effects measurement various crops are well-established, scientific evidence specifically relating quality morphology accumulation remains scarce. In this review, we critically summarized how different properties can alter (vegetative reproductive), physiology metabolism. Furthermore, mechanisms by which wavelengths biosynthesis not fully elucidated, could be prospective task future researchers. Our review paves way profound light’s advancements greenhouse settings maximize production commercial use.

Language: Английский

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Genome-wide association study of salicylic acid provides genetic insights for tea plant selective breeding

Horticulture Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Salicylic acid (SA) is a phenolic phytohormone widely believed to regulate plant growth and stress response. Despite its significance, the genetic basis of SA-mediated resistance biotic stressors in tea plants little understood. Our study investigated diversity, population structure, linkage disequilibrium (LD) patterns 299 accessions using 79 560 high-quality single nucleotide polymorphisms (SNPs) obtained from genotyping-by-sequencing (GBS) data. genome-wide association identified CSS0033791.1, an essential gene encoding 9-cis-epoxycarotenoid dioxygenase (CsNCED1), which catalyzes vital step abscisic (ABA) biosynthesis. Exogenous ABA treatment transgenic overexpression CsNCED1 lowered SA content respective by inhibiting expression ICS gene. Further analysis revealed that could reduce levels receptor (NPR1) NPR1 target genes (PR1 WRKY18), increasing plant's susceptibility stressors. Furthermore, feeding behavior Spodoptera litura insect bite area on leaves was substantially more extensive than wild type (WT), implying had negative regulatory role immune This thus provides foundation for future breeding, sustainable resource usage, molecular marker-assisted (MAS) breeding.

Language: Английский

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An ethylene response factor negatively regulates red light induced resistance of melon to powdery mildew by inhibiting ethylene biosynthesis

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 307, P. 141867 - 141867

Published: March 9, 2025

Language: Английский

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Dynamics of Defense-Related Genes Expression in Shallot after Uv-B-Induced Resistance Against Fusarium Acutatum Showed Time Difference

Published: Jan. 1, 2024

Language: Английский

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Dynamics of defense-related genes expression in shallot after UV-B-induced resistance against Fusarium acutatum showed time difference

Physiological and Molecular Plant Pathology, Journal Year: 2024, Volume and Issue: unknown, P. 102559 - 102559

Published: Dec. 1, 2024

Language: Английский

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