Role of plant secondary metabolites in defence and transcriptional regulation in response to biotic stress

Plant Stress, Год журнала: 2023, Номер 8, С. 100154 - 100154

Опубликована: Апрель 3, 2023

Secondary metabolites in plants have been recognized as a novel basis of potential bio-pesticides, paving the way for their use sustainable agriculture. Plant secondary pivotal roles plant-pathogen interactions. Some important are terpenoids, flavanols, flavones, etc., stress-inducible phytochemicals playing an role plant immune response development. Pathogen enters into host cell, multiply and utilise biological mechanism plants, causing hazard to world food assembly. Under stressed circumstances, evolve powerful intricate system growth defensive action. On other hand, transcription factors (TFs) assist counter adverse environments by acting mediators stress signal regulating stress-responsive gene expression. The transcriptional post-transcriptional manipulation is capable aid molecular breeding genetic modification meant improved metabolite synthesis. Although presence numerous has established life, very slight known about interaction with pathogens specific mechanisms involved leading immunity. Chemical pesticides wreaking havoc on our environment. As consequence, environmental-friendly alternatives disease management, like plant-based metabolites, should be explored. In this appraisal, we reviewed relation pathogens, contribution innate immunity, action, regulation TFs combating infections eco-friendly approach.

Язык: Английский

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Plant Secondary Metabolites: The Weapons for Biotic Stress Management

Metabolites, Год журнала: 2023, Номер 13(6), С. 716 - 716

Опубликована: Май 31, 2023

The rise in global temperature also favors the multiplication of pests and pathogens, which calls into question food security. Plants have developed special coping mechanisms since they are sessile lack an immune system. These use a variety secondary metabolites as weapons to avoid obstacles, adapt their changing environment, survive less-than-ideal circumstances. Plant include phenolic compounds, alkaloids, glycosides, terpenoids, stored specialized structures such latex, trichomes, resin ducts, etc. Secondary help plants be safe from biotic stressors, either by repelling them or attracting enemies, exerting toxic effects on them. Modern omics technologies enable elucidation structural functional properties these along with biosynthesis. A better understanding enzymatic regulations molecular aids exploitation modern pest management approaches biopesticides integrated management. current review provides overview major plant that play significant roles enhancing stress tolerance. It examines involvement both indirect direct defense mechanisms, well storage within tissues. Additionally, this explores importance metabolomics elucidating significance application metabolic engineering breeding for resistance is discussed, sustainable

Язык: Английский

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Environmental microplastics: Classification, sources, fates, and effects on plants

Chemosphere, Год журнала: 2022, Номер 313, С. 137559 - 137559

Опубликована: Дек. 14, 2022

Язык: Английский

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The function of UDP-glycosyltransferases in plants and their possible use in crop protection

Biotechnology Advances, Год журнала: 2023, Номер 67, С. 108182 - 108182

Опубликована: Июнь 1, 2023

Glycosyltransferases catalyse the transfer of a glycosyl moiety from donor to an acceptor. Members this enzyme class are ubiquitous throughout all kingdoms life and involved in biosynthesis countless types glycosides. Family 1 glycosyltransferases, also referred as uridine diphosphate-dependent glycosyltransferases (UGTs), glycosylate small molecules such secondary metabolites xenobiotics. In plants, UGTs recognised for their multiple functionalities ranging roles growth regulation development, protection against pathogens abiotic stresses adaptation changing environments. study, we review UGT-mediated glycosylation phytohormones, endogenous metabolites, xenobiotics contextualise role chemical modification plays response biotic plant fitness. Here, potential advantages drawbacks altering expression patterns specific along with heterologous across species improve stress tolerance plants discussed. We conclude that UGT-based genetic could potentially enhance agricultural efficiency take part controlling biological activity bioremediation strategies. However, more knowledge intricate interplay between is needed unlock full crop resistance.

Язык: Английский

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The MYC2–PUB22–JAZ4 module plays a crucial role in jasmonate signaling in tomato

Molecular Plant, Год журнала: 2024, Номер 17(4), С. 598 - 613

Опубликована: Фев. 9, 2024

Jasmonates (JAs), a class of lipid-derived stress hormones, play crucial role across an array plant physiological processes and responses. Although JA signaling is thought to rely predominantly on the degradation specific JAZ proteins by SCFCOI1, it remains unclear whether other pathways are involved in regulation protein stability. Here, we report that PUB22, U-box type E3 ubiquitin ligase, plays critical resistance against Helicoverpa armigera responses tomato. Whereas COI1 physically interacts with JAZ1/2/5/7, PUB22 JAZ1/3/4/6. ubiquitinates JAZ4 promote its via 26S proteasome pathway. Importantly, observed pub22 mutants showreduced H. armigera, whereas jaz4 single jaz1 jaz3 jaz6 quadruple have enhanced resistance. The hypersensitivity herbivores could be partially rescued mutation. Moreover, found expression can transcriptionally activated MYC2, thus forming positive feedback circuit signaling. We noticed PUB22–JAZ4 module also regulates responses, including defense B. cinerea, inhibition root elongation, anthocyanin accumulation. Taken together, these results indicate growth together COI1-regulated signaling, targeting JAZs.

Язык: Английский

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Plant Cell Wall Integrity Perturbations and Priming for Defense

Plants, Год журнала: 2022, Номер 11(24), С. 3539 - 3539

Опубликована: Дек. 15, 2022

A plant cell wall is a highly complex structure consisting of networks polysaccharides, proteins, and polyphenols that dynamically change during growth development in various tissues. The not only acts as physical barrier but also responds to disturbances caused by biotic abiotic stresses. Plants have well-established surveillance mechanisms detect any perturbations. Specific immune signaling pathways are triggered contrast or forces, including cascades dedicated reinforcing the structure. This review summarizes recent developments molecular underlying maintenance integrity plant-pathogen parasitic interactions. Subjects such effect altered expression endogenous cell-wall-related genes apoplastic microbial cell-wall-modifying enzymes on covered. Targeted genetic modifications tool study potential elicitors, priming pathways, outcome disease resistance phenotypes discussed. prime importance understanding intricate details complete picture immunity emerges, ultimately engineer new strategies improve crop productivity sustainability.

Язык: Английский

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Oxylipins and Reactive Carbonyls as Regulators of the Plant Redox and Reactive Oxygen Species Network under Stress

Antioxidants, Год журнала: 2023, Номер 12(4), С. 814 - 814

Опубликована: Март 27, 2023

Reactive oxygen species (ROS), and in particular H2O2, serve as essential second messengers at low concentrations. However, excessive ROS accumulation leads to severe irreversible cell damage. Hence, control of levels is needed, especially under non-optimal growth conditions caused by abiotic or biotic stresses, which least initially stimulate synthesis. A complex network thiol-sensitive proteins instrumental realizing tight control; this called the redox regulatory network. It consists sensors, input elements, transmitters, targets. Recent evidence revealed that interplay oxylipins–molecules derived from oxygenation polyunsaturated fatty acids, high levels–plays a decisive role coupling generation subsequent stress defense signaling pathways plants. This review aims provide broad overview current knowledge on interaction distinct oxylipins generated enzymatically (12-OPDA, 4-HNE, phytoprostanes) non-enzymatically (MDA, acrolein) components Further, recent findings contribution environmental acclimatization will be discussed using flooding, herbivory, establishment thermotolerance prime examples relevant stresses.

Язык: Английский

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Defensive Molecules Momilactones A and B: Function, Biosynthesis, Induction and Occurrence

Toxins, Год журнала: 2023, Номер 15(4), С. 241 - 241

Опубликована: Март 25, 2023

Labdane-related diterpenoids, momilactones A and B were isolated identified in rice husks 1973 later found leaves, straws, roots, root exudate, other several Poaceae species the moss Calohypnum plumiforme. The functions of are well documented. Momilactones plants suppressed growth fungal pathogens, indicating defense function against pathogen attacks. Rice also inhibited adjacent competitive through secretion into their rhizosphere due to potent growth-inhibitory activity momilactones, a allelopathy. Momilactone-deficient mutants lost tolerance pathogens allelopathic activity, which verifies involvement both functions. showed pharmacological such as anti-leukemia anti-diabetic activities. synthesized from geranylgeranyl diphosphate cyclization steps, biosynthetic gene cluster is located on chromosome 4 genome. Pathogen attacks, biotic elicitors chitosan cantharidin, abiotic UV irradiation CuCl2 elevated momilactone production jasmonic acid-dependent independent signaling pathways. allelopathy was by acid, nutrient deficiency competition with neighboring increased momilactones. induced either nearby Echinochloa crus-galli or exudates. Certain compounds may stimulate This article focuses functions, biosynthesis induction occurrence plant species.

Язык: Английский

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Defense strategies and associated phytohormonal regulation in Brassica plants in response to chewing and sap-sucking insects

Frontiers in Plant Science, Год журнала: 2024, Номер 15

Опубликована: Апрель 5, 2024

Plants have evolved distinct defense strategies in response to a diverse range of chewing and sucking insect herbivory. While herbivores, exemplified by caterpillars beetles, cause visible tissue damage induce jasmonic acid (JA)-mediated responses, insects, such as aphids whiteflies, delicately tap into the phloem sap elicit salicylic (SA)-mediated responses. This review aims highlight specificity Brassica plants associated underlying molecular mechanisms when challenged herbivorous insects from different feeding guilds (i.e., insects). To establish an understanding plants, typical responses were categorized physical, chemical, metabolic adjustments. Further, impact contrasting patterns on is discussed context unique biochemical modus operandi that governs resistance against pests. Grasping these interactions crucial developing innovative targeted pest management approaches ensure ecosystem sustainability productivity.

Язык: Английский

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Secondary metabolites in host pears defense against two fruit borers and cytochrome-P450-mediated counter-defense

iScience, Год журнала: 2024, Номер 27(4), С. 109518 - 109518

Опубликована: Март 16, 2024

Язык: Английский

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