Recent Advances in the Specialized Metabolites Mediating Resistance to Insect Pests and Pathogens in Tea Plants (Camellia sinensis)

Plants, Год журнала: 2024, Номер 13(2), С. 323 - 323

Опубликована: Янв. 22, 2024

Tea is the second most popular nonalcoholic beverage consumed in world, made from buds and young leaves of tea plants (Camellia sinensis). trees, perennial evergreen plants, contain abundant specialized metabolites suffer severe herbivore pathogen attacks nature. Thus, there has been considerable attention focusing on investigating precise function plant resistance against pests diseases. In this review, firstly, responses (including phytohormones, volatile compounds, flavonoids, caffeine, L-theanine) to different by pathogens were compared. Secondly, research progress defensive functions action modes metabolites, along with intrinsic molecular mechanisms was summarized. Finally, critical questions about proposed for better future phytohormone-dependent biosynthesis, characteristics defense stresses, mechanisms. This review provides an update biological two pathogens.

Язык: Английский

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Epigallocatechin-3-gallate-induced tolerance to cadmium stress involves increased flavonoid synthesis and nutrient homeostasis in tomato roots

Plant Physiology and Biochemistry, Год журнала: 2024, Номер 208, С. 108468 - 108468

Опубликована: Март 1, 2024

Язык: Английский

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Effect of hesperidin on growth, photosynthesis, antioxidant systems and uptake of cadmium, copper, chromium and zinc by Celosia argentea plants

Plant Physiology and Biochemistry, Год журнала: 2024, Номер 207, С. 108433 - 108433

Опубликована: Фев. 1, 2024

Язык: Английский

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Transcriptomic and Metabolomic Insights into Temperature-Dependent Changes in Catechin and Anthocyanin Accumulation in Tea Plants with Different Leaf Colors

Plant Stress, Год журнала: 2024, Номер 14, С. 100705 - 100705

Опубликована: Дек. 1, 2024

Язык: Английский

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Tea polyphenol mediated CsMYB77 regulation of CsPOD44 to promote tea plant (Camellia sinensis) root drought resistance

Horticulture Research, Год журнала: 2025, Номер 12(6)

Опубликована: Фев. 18, 2025

Abstract Drought stress significantly alters the metabolic homeostasis of tea plants; however, few studies have examined role specific metabolites, particularly polyphenols, in drought resistance. This study reveals that polyphenol content drought-tolerant cultivars tends to increase under conditions. Notably, environments characterized by staged and repeated drought, changes are positively correlated with To investigate this further, we irrigated roots exogenous polyphenols before subjecting plants drought. Our findings indicated absorptive experimental group exhibited enhanced development, improved cellular integrity, a significant peroxidase activity. A comprehensive analysis transcriptome metabolome revealed closely associated phenylpropanoid metabolism pathway. CsMYB77 CsPOD44 genes were identified as highly Overexpression experiments Arabidopsis thaliana demonstrated promotes expression pathway genes, thereby enhancing Conversely, antisense oligonucleotide silencing decreased resistance plants. Additional experiments, including yeast one-hybrid assays, luciferase complementation imaging, dual-luciferase electrophoretic mobility shift confirmed regulates CsPOD44. In summary, our indicate differences tolerance among linked metabolism. Specifically, may mediate regulatory network involving CsPOD44, promoting root development. offers new insights into breeding drought-resistant cultivars.

Язык: Английский

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Alleviation of arsenic toxicity in pepper plants by aminolevulinic acid and heme through modulating its sequestration and distribution within cell organelles

Environmental Pollution, Год журнала: 2023, Номер 330, С. 121747 - 121747

Опубликована: Май 3, 2023

Язык: Английский

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CsWRKY12 interacts with CsVQ4L to promote the accumulation of galloylated catechins in tender leaves of tea plants

The Plant Journal, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 21, 2024

SUMMARY Galloylated catechins in tea leaves, primarily epigallocatechin‐3‐gallate (EGCG) and epicatechin gallate (ECG), possess prominent biological activities. It is well established that EGCG ECG are abundantly present tender leaves but less prevalent mature leaves. However, the fundamental regulatory mechanisms underlying this distribution remain unknown. In study, we integrated transcriptome data catechin component levels from six leaf positions using weighted gene co‐expression network analysis. This analysis revealed a positive correlation between variations CsWRKY12 expression levels. Further investigation yeast one‐hybrid dual‐luciferase assays, as electrophoretic mobility shift assay, demonstrated activated transcription of CsSCPL4 CsSCPL5 , which encode enzymes responsible for galloylated biosynthesis, by directly binding to W‐box elements their promoters. Overexpression promoted leading an increase content. Moreover, found VQ motif‐containing protein, CsVQ4L, interacted with facilitated its transcriptional function regulating . Collectively, our findings suggest interaction CsVQ4L contributes accumulation plants.

Язык: Английский

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Potential of Plant-Derived Compounds in Preventing and Reversing Organ Fibrosis and the Underlying Mechanisms

Cells, Год журнала: 2024, Номер 13(5), С. 421 - 421

Опубликована: Фев. 28, 2024

Increased production of extracellular matrix is a necessary response to tissue damage and stress. In normal healing process, the increase in transient. some instances; however, can persist as fibrosis, leading deleterious alterations organ structure, biomechanical properties, function. Indeed, fibrosis now appreciated be an important cause mortality morbidity. Extensive research has illustrated that slowed, arrested or even reversed; few drugs have been approved specifically for anti-fibrotic treatment. This part due complex pathways responsible fibrogenesis undesirable side effects targeting these pathways. Natural products utilized thousands years major component traditional medicine currently account almost one-third used clinically worldwide. A variety plant-derived compounds demonstrated preventative reversal on fibrosis. review will discuss underlying mechanisms identified impact

Язык: Английский

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Accumulation ability of trace metals by silver birch leaves in areas contaminated by Zn-Pb ore processing: Effects of excessive trace metal accumulation on specialized metabolism

Chemosphere, Год журнала: 2024, Номер 362, С. 142719 - 142719

Опубликована: Июнь 27, 2024

Язык: Английский

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Response of photosynthetic capacity to ecological factors and its relationship with EGCG biosynthesis of tea plant (Camellia sinensis)

BMC Plant Biology, Год журнала: 2025, Номер 25(1)

Опубликована: Фев. 14, 2025

Epigallocatechin gallate (EGCG) imparts unique health benefits and flavour to tea. Photosynthesis plays a crucial role in modulating secondary metabolite production plants, this study investigated its impact on the biosynthesis of EGCG tea plants under different ecological conditions. Enhanced photosynthetic activity increased content, total esterified catechins (TEC), (TC) responded synchronously changes factors. The capacity content fit surface model equations (Extreme 2D Polynomial 2D) multiple regression (R2 > 70%). Additionally, logistic ROC curves revealed that was related accumulation patterns response variations. Upon perceiving changes, photosynthesis-related genes (CspsaA from photosystem I, CspsbB, CspsbC II, CsLHCB3 antenna protein pathway) associated carbon cycle-related (CsALDO, CsACOX, CsICDH, Csrbcs), which mediated expression CsPAL phenylalanine pathway; CsaroDE shikimate CsCHS, CsF3H, CsF3'H, CsANS flavonoid pathway. Eventually, influenced precursors (gallic acid epigallocatechin) plants. This reveals effects photosynthesis factors, providing insights for optimizing cultivation quality.

Язык: Английский

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