The role of volatiles in plant communication

The Plant Journal, Journal Year: 2019, Volume and Issue: 100(5), P. 892 - 907

Published: Aug. 14, 2019

Volatiles mediate the interaction of plants with pollinators, herbivores and their natural enemies, other micro-organisms. With increasing knowledge about these interactions underlying mechanisms turn out to be increasingly complex. The biosynthesis perception volatiles are slowly being uncovered. scientific can used design apply volatile-based agricultural strategies.

Language: Английский

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Diversity in Chemical Structures and Biological Properties of Plant Alkaloids

Molecules, Journal Year: 2021, Volume and Issue: 26(11), P. 3374 - 3374

Published: June 3, 2021

Phytochemicals belonging to the group of alkaloids are signature specialized metabolites endowed with countless biological activities. Plants armored these naturally produced nitrogenous compounds combat numerous challenging environmental stress conditions. Traditional and modern healthcare systems have harnessed potential organic for treatment many ailments. Various chemical entities (functional groups) attached central moiety responsible their diverse range properties. The development characterization plant enzymes involved in biosynthesis is an utmost priority deliver enhanced advantages terms properties productivity. Further, incorporation whole/partial metabolic pathways heterologous system and/or overexpression biosynthetic steps homologous both become alternative lucrative methods over synthesis recent times. Moreover, in-depth research on alkaloid has revealed modifications that occur during alkaloidal conversions. These reactions involve glycosylation, acylation, reduction, oxidation, methylation steps, they usually conferring activities possessed by alkaloids. In this review, we aim discuss brief classification covering major categories. We also emphasize diversity basic structures arising through enzymatically catalyzed structural certain species, as well emerging role defense mechanisms action briefly discussed. commercial utilization marketplace displaying various applications been enumerated.

Language: Английский

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Plant Secondary Metabolites: The Weapons for Biotic Stress Management

Metabolites, Journal Year: 2023, Volume and Issue: 13(6), P. 716 - 716

Published: May 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

Language: Английский

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Plant Allelochemicals as Sources of Insecticides

Insects, Journal Year: 2021, Volume and Issue: 12(3), P. 189 - 189

Published: Feb. 24, 2021

In this review, we describe the role of plant-derived biochemicals that are toxic to insect pests. Biotic stress in plants caused by pests is one most significant problems, leading yield losses. Synthetic pesticides still play a crop protection. However, environmental side effects and health issues overuse or inappropriate application synthetic forced authorities ban some problematic ones. Consequently, there strong necessity for novel alternative pest control methods. An interesting source ecological biocidal compounds, naturally occurring as allelochemicals (secondary metabolites), helping resist, tolerate compensate The abovementioned bioactive natural products first line defense against herbivores. large group secondary plant metabolites, including alkaloids, saponins, phenols terpenes, promising compounds management Secondary metabolites offer sustainable control, therefore can conclude certain species provide numerous possibilities discovering ecologically friendly methods

Language: Английский

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How diverse is the chemistry and plant origin of Brazilian propolis?

Apidologie, Journal Year: 2021, Volume and Issue: 52(6), P. 1075 - 1097

Published: Oct. 1, 2021

Language: Английский

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Nonglandular silicified trichomes are essential for rice defense against chewing herbivores

Plant Cell & Environment, Journal Year: 2020, Volume and Issue: 43(9), P. 2019 - 2032

Published: April 23, 2020

Abstract Interspecific New Rice for Africa (NERICA) varieties have been recently developed and used in Sub‐Saharan but herbivore resistance properties of these plants remain poorly understood. Here we report that, compared to a local Japanese cultivar Nipponbare, NERICA 1, 4 10 are significantly more damaged by insect herbivores the paddy fields. In contrast high levels leaf damage from rice skippers grasshoppers, constitutive induced volatile organic compounds indirect plant defense were higher or similar NERICAs Nipponbare. Accumulation direct secondary metabolites, momilactones A B, p ‐coumaroylputrescine (CoP) was reduced NERICAs, while feruloylputrescine accumulated at all varieties. Finally, found that Nipponbare leaves covered with sharp nonglandular trichomes impregnated silicon comparable structures virtually absent herbivory‐prone plants. As larval gut membranes silicified pass intact through digestive system, occurs, performance is enhanced trichome removal otherwise chemically defended plants, propose work as an important mechanism against chewing herbivores.

Language: Английский

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Review on the Bio-insecticidal Properties of Some Plant Secondary Metabolites: Types, Formulations, Modes of Action, Advantages and Limitations

Asian Journal of Research in Zoology, Journal Year: 2020, Volume and Issue: unknown, P. 27 - 60

Published: Dec. 14, 2020

Bio-pesticides are biological derived agents that usually applied in a manner similar to synthetic pesticides but achieve pest management an environmental friendly way. Bioinsecticides have the advantages of been reportedly eco-friendly both man and environment, target specific, lack problem residue, least persistent locally available, easily processed inexpensive, though with limitation requiring repeated applications for achievement optimal control insect pests while enhancing crop protection. The mode action bioinsecticides on insects includes repellent action, antifeedant activity, oviposition deterrent properties, growth development inhibition, toxicity, attractants, sterility death. Hence, can be included integrated programs protection control. review biopesticidal properties some plant secondary metabolites leaves, stems, bark, fruits, flowers, cloves, rhizomes, grains seeds plants their interference growth, feeding, reproduction pestsfor has elaborated.

Language: Английский

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Aphid-Resistant Plant Secondary Metabolites: Types, Insecticidal Mechanisms, and Prospects for Utilization

Plants, Journal Year: 2024, Volume and Issue: 13(16), P. 2332 - 2332

Published: Aug. 21, 2024

Aphids pose a significant threat to global agricultural crop production, leading widespread pesticide use and resistance. This necessitates the of alternative substances, like plant secondary metabolites (PSMs). Plants have developed protective compounds known as alkaloids, terpenoids, phenolics, sulfur- nitrogen-containing metabolites. These exhibit promising characteristics against aphids, such antifeedant, aphicidal, disrupting survival fitness. review highlights importance application in combating aphid populations. Different insect-resistant substances different mechanisms for managing aphids other pests, including defensive signaling, inhibiting growth, attracting natural predators by releasing herbivore-induced volatiles (HIPV). The biopesticides has proven be an effective, economical, eco-friendly synthetic chemicals. Furthermore, this comprehensively discusses principle role metabolites, encouraging sustainable practices emphasizing integrated management population.

Language: Английский

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Perspectives for integrated insect pest protection in oilseed rape breeding

Theoretical and Applied Genetics, Journal Year: 2022, Volume and Issue: 135(11), P. 3917 - 3946

Published: March 16, 2022

In the past, breeding for incorporation of insect pest resistance or tolerance into cultivars use in integrated management schemes oilseed rape/canola (Brassica napus) production has hardly ever been approached. This largely due to broad availability insecticides and complexity dealing with high-throughput phenotyping performance plant damage parameters. However, recent changes political framework many countries demand future sustainable crop protection which makes approaches as a measure control attractive again. At same time, new camera-based tracking technologies, knowledge-based genomic technologies scientific insights ecology insect-Brassica interactions are becoming available. Here we discuss prioritise promising strategies direct indirect targets, their time-perspective realisation rape. conclusion, researchers rape breeders can nowadays benefit from an array combination will accelerate development improved multiple resistances/tolerances near future.

Language: Английский

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Intradiol ring cleavage dioxygenases from herbivorous spider mites as a new detoxification enzyme family in animals

BMC Biology, Journal Year: 2022, Volume and Issue: 20(1)

Published: June 4, 2022

Abstract Background Generalist herbivores such as the two-spotted spider mite Tetranychus urticae thrive on a wide variety of plants and can rapidly adapt to novel hosts. What traits enable polyphagous cope with diversity secondary metabolites in their variable plant diet is unclear. Genome sequencing T. revealed presence 17 genes that code for secreted proteins strong homology “intradiol ring cleavage dioxygenases (DOGs)” from bacteria fungi, phylogenetic analyses show they have been acquired by horizontal gene transfer fungi. In DOGs well characterized cleave aromatic rings catecholic compounds between adjacent hydroxyl groups. Such are found high amounts solanaceous like tomato, where protect against herbivory. To better understand role this family mites, we used multi-disciplinary approach functionally characterize various DOG genes. Results We confirmed were present genome performed reconstruction using transcriptomic genomic data advance our understanding evolutionary history expression differed mites different hosts was induced response jasmonic acid defense signaling. consonance presumed detoxification, localized mite’s gut region. Silencing selected dsRNA injection reduced mites’ survival rate further supporting mitigating response. Recombinant purified displayed broad substrate promiscuity, cleaving surprisingly array metabolites, greatly exceeding metabolic capacity previously microbial DOGs. Conclusion Our findings suggest laterally function detoxification enzymes gut, disarming before reach toxic levels. provide experimental evidence support hypothesis proliferated causally linked its ability feed an extremely range host plants.

Language: Английский

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