Exploring the role of caffeic acid in mitigating abiotic stresses in plants: A review

Plant Stress, Journal Year: 2024, Volume and Issue: 12, P. 100487 - 100487

Published: May 15, 2024

Caffeic acid (CA) is a phenolic compound, which has multifaceted role in the response of plants to various abiotic stresses. Plants must adapt external stimuli, prompting extensive research into and flavonoid compounds as potential mitigators environmental stress impacts. Phenylpropanoids are emphasized for their importance maintaining plant integrity under stress, while significance CA, cinnamic acid, interpreted key component involved lignin synthesis regulating physiological processes. CA deals with different kinds like salinity-induced chilling especially drought-induced plants. helps make certain chemicals called phenolics, protect them from damage caused by oxidative stress. Researchers investigating possible ways that functions, including its roles signals, defending against antioxidants, preserving cells. There need understand factors, can provide information about adaptive mechanisms applications agriculture. This review proposes genetic advances increase crop tolerance provides an overview complexities surrounding responses conditions. highlights further identify specific interactions other compounds, well comparative analysis species. It meeting challenges encouraged collaborative efforts sustainable agriculture human well-being. demonstrates CA's enhancing resistance blueprint future directions, study mechanisms, between components, development stress-resistant products.

Language: Английский

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Genetic and evolutionary dissection of melatonin response signaling facilitates the regulation of plant growth and stress responses

Journal of Pineal Research, Journal Year: 2022, Volume and Issue: 74(2)

Published: Dec. 31, 2022

Abstract The expansion of gene families during evolution could generate functional diversity among their members to regulate plant growth and development. Melatonin, a phylogenetically ancient molecule, is vital for many aspects plant's life. Understanding the molecular players involved in melatonin biosynthesis, signaling, metabolism will facilitate regulation phenotypes. However, mechanism response signaling elements regulating this network still has challenges. Here, we provide an in‐depth analysis components pathway. Genetic multiple mutants species shed light on role regulatory pathways. Phylogenetic these genes was performed, which identification melatonin‐related future study. Based abovementioned signal networks, summarized reference studying We hope that work research higher plants finely tuned spatio‐temporal signaling.

Language: Английский

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Targeted and untargeted metabolomics reveals deep analysis of drought stress responses in needles and roots of Pinus taeda seedlings

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 13

Published: Jan. 31, 2023

Drought stress is one of major environmental stresses affecting plant growth and yield. Although Pinus taeda trees are planted in rainy southern China, local drought sometime occurs can last several months, further their resin production. In this study, P. seedlings were treated with long-term (42 d), then targeted untargeted metabolomics analysis carried out to evaluate tolerance . Targeted showed that levels some sugars, phytohormones, amino acids significantly increased the roots needles water-stressed (WS) seedlings, compared well-watered (WW) pine seedlings. These metabolites included sucrose roots, phytohormones abscisic acid sacylic needles, phytohormone gibberellin (GA4) two acids, glycine asparagine, WS roots. Compared WW neurotransmitter acetylcholine but reduced The neurotransmitters L-glutamine hydroxytyramine respectively, noradrenaline Levels unsaturated fatty or such as linoleic acid, oleic myristelaidic myristoleic palmitelaidic erucic alpha-linolenic needles. However, three saturated i.e., dodecanoic tricosanoic heptadecanoic Untargeted especially long-chain lipids, flavonoids, terpenoids. A few specific greatly, androsin, piceatanol, panaxatriol Comparing it was found most enriched pathways flavone flavonol biosynthesis, ABC transporters, diterpenoid hormone signal transduction, flavonoid biosynthesis; tryptophan metabolism, caffeine sesquiterpenoid triterpenoid biosynthesis phenylalanine, tyrosine, tryptophan. Under stress, own characteristics, new found, providing a guideline for breeding drought-tolerant cultivars

Language: Английский

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Multifunctional 5-hydroxyconiferaldehyde O-methyltransferases (CAldOMTs) in plant metabolism

Journal of Experimental Botany, Journal Year: 2024, Volume and Issue: 75(6), P. 1671 - 1695

Published: Jan. 10, 2024

Abstract Lignin, flavonoids, melatonin, and stilbenes are plant specialized metabolites with diverse physiological biological functions, supporting growth conferring stress resistance. Their biosynthesis requires O-methylations catalyzed by 5-hydroxyconiferaldehyde O-methyltransferase (CAldOMT; also called caffeic acid O-methyltransferase, COMT). CAldOMT was first known for its roles in syringyl (S) lignin angiosperm cell walls later found to be multifunctional. This enzyme catalyzes flavonoid, stilbene biosynthetic pathways. Phylogenetic analysis indicated the convergent evolution of enzymes OMT activities towards monolignol pathway intermediates some gymnosperm species that lack S-lignin Selaginella moellendorffii, a lycophyte which produces S-lignin. Furthermore, neofunctionalization CAldOMTs occurred repeatedly during evolution, generating unique O-methyltransferases (OMTs) novel catalytic and/or accepting substrates, including lignans, 1,2,3-trihydroxybenzene, phenylpropenes. review summarizes multiple aspects their related proteins metabolism discusses molecular mechanism, biorefineries, agriculture, synthetic biology.

Language: Английский

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Caffeic acid O-methyltransferase from Ligusticum chuanxiong alleviates drought stress, and improves lignin and melatonin biosynthesis

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Sept. 18, 2024

Drought stress is a major constraint on plant growth and agricultural productivity. Caffeic acid O-methyltransferase (COMT), an enzyme involved in the methylation of various substrates, plays pivotal role responses to abiotic stress. The involvement COMTs drought response, particularly through enhancement lignin melatonin biosynthesis, remains poorly understood. In this study, LcCOMT was firstly proposed be associated with biosynthesis both melatonin, as demonstrated sequence comparison, phylogenetic analysis, conserved motif identification. vitro enzymatic assays revealed that effectively methylates N-acetylserotonin albeit higher K m value compared caffeic acid. Site-directed mutagenesis residues Phe171 Asp269 resulted significant reduction catalytic activity for acid, minimal impact N-acetylserotonin, underscoring specificity these substrate binding catalysis. Under conditions, expression significantly upregulated. Overexpression gene Arabidopsis plants conferred enhanced tolerance, characterized by elevated levels, increased chlorophyll carotenoid content, heightened activities antioxidant enzymes peroxidase (POD), catalase (CAT), superoxide dismutase (SOD), reduced malondialdehyde (MDA) hydrogen peroxide (H 2 O ) accumulation. This study among few demonstrate COMT-mediated tolerance achieved simultaneous promotion biosynthesis. represents first functionally COMT Apiaceae family, it holds potential target genetic future crop improvement strategies.

Language: Английский

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Hydrotime Model Parameters Estimate Seed Vigor and Predict Seedling Emergence Performance of Astragalus sinicus under Various Environmental Conditions

Plants, Journal Year: 2023, Volume and Issue: 12(9), P. 1876 - 1876

Published: May 4, 2023

Seed vigor is an important aspect of seed quality. High-vigor seeds show rapid and uniform germination emerge well, especially under adverse environmental conditions. Here, we determined hydrotime model parameters by incubating at different water potentials (0.0, -0.2, -0.4, -0.6, -0.8 MPa) in the laboratory, for 12 lots Chinese milk vetch (Astragalus sinicus) (CMV), a globally legume used as forage, green manure, rotation crop. Pot experiments were conducted to investigate seedling emergence performance CMV control, stress, salinity deep sowing, cold stress Meanwhile, field was evaluated on two sowing dates June October 2022. Correlation regression analyses implemented explore relationships between various The percentage did not differ significantly when incubated 0.0 MPa, whereas it -0.6 MPa. percentage, dry weight, simplified index also differed Ψb(50) showed significant correlation with conditions; however, little observed θH or σφb emergence. These results indicate that can be estimate predict diverse conditions similar forage legumes. This study will enable researchers, plant breeders, government program directors target higher more effectively

Language: Английский

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Recent advances in melatonin regulation of drought tolerance in plants

Tropical Plants, Journal Year: 2025, Volume and Issue: 4(1), P. 0 - 0

Published: Jan. 1, 2025

Language: Английский

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1+1<2: Combined effect of low temperature stress and salt stress on Sesuvium portulacastrum L.

Plant Physiology and Biochemistry, Journal Year: 2024, Volume and Issue: 219, P. 109404 - 109404

Published: Dec. 15, 2024

Language: Английский

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Genome-wide investigation of caffeic acid O-methyltransferases and expression analysis under different abiotic stresses and anthracnose infection in pepper ( Capsicum annuum L.)

The Journal of Horticultural Science and Biotechnology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 14

Published: Sept. 20, 2024

Language: Английский

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Comparative Metabolome and Transcriptome Analyses Reveal Molecular Mechanisms Involved in the Responses of Two Carex rigescens Varieties to Salt Stress

Plants, Journal Year: 2024, Volume and Issue: 13(21), P. 2984 - 2984

Published: Oct. 25, 2024

Salt stress severely inhibits crop growth and production. The native turfgrass species Carex rigescens in northern China, exhibits extraordinary tolerance to multiple abiotic stresses. However, little is known about its specific metabolites pathways under salt stress. To explore the molecular metabolic mechanisms stress, we conducted metabolome analysis combined with transcriptome of two varieties differing tolerances: salt-sensitive Lvping NO.1 salt-tolerant NO.2. After 5 days treatment, 114 131 differentially abundant (DAMs) were found NO.2, respectively. Among them, six amino acids involved acid biosynthesis pathway, namely, valine, phenylalanine, isoleucine, tryptophan, threonine, serine, accumulated after treatment. Furthermore, most DAMs related phenylalanine biosynthesis, metabolism, phenylpropanoid increased both varieties. expression profiles metabolism-associated genes consistent profiles. including HCT, β-glucosidases, F5H, metabolite 4-hydroxycinnamic acid, may account for differences tolerance. Our study provides new insights into underlying reveals potential improve resilience saline environments.

Language: Английский

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