Molecular Interactions Between Plants and Insect Herbivores

Annual Review of Plant Biology, Год журнала: 2019, Номер 70(1), С. 527 - 557

Опубликована: Фев. 20, 2019

Diverse molecular processes regulate the interactions between plants and insect herbivores. Here, we review genes proteins that are involved in plant–herbivore discuss how their discovery has structured current standard model of interactions. Plants perceive damage-associated and, possibly, herbivore-associated patterns via receptors activate early signaling components such as Ca 2+ , reactive oxygen species, MAP kinases. Specific defense reprogramming proceeds networks include phytohormones, secondary metabolites, transcription factors. Local systemic regulation toxins, proteins, physical barriers, tolerance traits protect against Herbivores counteract plant defenses through biochemical deactivation, effector-mediated suppression signaling, chemically controlled behavioral changes. The basis is now well established for systems. Expanding approaches to unexplored dimensions plant–insect should be a future priority.

Язык: Английский

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Plant Secondary Metabolites as Defense Tools against Herbivores for Sustainable Crop Protection

International Journal of Molecular Sciences, Год журнала: 2022, Номер 23(5), С. 2690 - 2690

Опубликована: Фев. 28, 2022

Plants have evolved several adaptive strategies through physiological changes in response to herbivore attacks. Plant secondary metabolites (PSMs) are synthesized provide defensive functions and regulate defense signaling pathways safeguard plants against herbivores. Herbivore injury initiates complex reactions which ultimately lead synthesis accumulation of PSMs. The biosynthesis these is regulated by the interplay molecules comprising phytohormones. volatile released upon attack capable directly inducing or priming hormonal pathways. Secondary enable quickly detect attacks respond a timely way rapidly changing scenario pest environment. Several studies suggested that potential for adaptation and/or resistance insect herbivores limited. These cause direct toxicity pests, stimulate antixenosis mechanisms herbivores, and, recruiting natural enemies, indirectly protect plants. Herbivores adapt up/down regulation sensory genes, sequestration detoxification toxic metabolites. PSMs modulate multi-trophic interactions involving host plants, enemies pollinators. Although role plant-pollinator has been little explored, reports suggest both pollinators mutually benefited. Molecular insights into regulatory proteins genes involved will pave metabolic engineering biosynthetic pathway intermediates improving plant tolerance This review throws light on modulating interactions, contributing knowledge plant-herbivore their management an eco-friendly sustainable manner.

Язык: Английский

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Plant volatile‐mediated signalling and its application in agriculture: successes and challenges

New Phytologist, Год журнала: 2016, Номер 212(4), С. 856 - 870

Опубликована: Ноя. 8, 2016

856 I. II. 857 III. 858 IV. 859 V. 860 VI. 862 VII. 863 VIII. 864 IX. 866 References SUMMARY: The mediation of volatile secondary metabolites in signalling between plants and other organisms has long been seen as presenting opportunities for sustainable crop protection. Initially, exploitation interactions organisms, particularly insect pests, foundered because difficulties delivering, sustainably, the signal systems We now have mounting and, some cases, clear practical evidence successful delivery by companion cropping or next-generation genetic modification (GM). At same time, type plant being exploited expanded to from antagonistic stress-induced, primed, plant-to-plant defence growth stimulation.

Язык: Английский

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Plant defense against aphids, the pest extraordinaire

Plant Science, Год журнала: 2018, Номер 279, С. 96 - 107

Опубликована: Май 3, 2018

Язык: Английский

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Targeting Nitrogen Metabolism and Transport Processes to Improve Plant Nitrogen Use Efficiency

Frontiers in Plant Science, Год журнала: 2021, Номер 11

Опубликована: Март 1, 2021

In agricultural cropping systems, relatively large amounts of nitrogen (N) are applied for plant growth and development, to achieve high yields. However, with increasing N application, use efficiency generally decreases, which results in losses into the environment subsequently detrimental consequences both ecosystems human health. A strategy reducing input environmental while maintaining or performance is development crops that effectively obtain, distribute, utilize available N. Generally, acquired from soil inorganic forms nitrate ammonium assimilated roots leaves as amino acids. The acids may be used within source organs, but they also principal compounds transported sink support metabolism growth. uptake, synthesis acids, their partitioning sources toward sinks, well utilization sinks represent potential bottlenecks effective vegetative reproductive This review addresses recent discoveries transport relevance improving under low conditions.

Язык: Английский

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Enhancing Aphid Resistance in Horticultural Crops: A Breeding Prospective

Horticulture Research, Год журнала: 2024, Номер 11(12)

Опубликована: Сен. 28, 2024

Язык: Английский

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Rapid evolution of aphid pests in agricultural environments

Current Opinion in Insect Science, Год журнала: 2018, Номер 26, С. 17 - 24

Опубликована: Янв. 8, 2018

Язык: Английский

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Challenging battles of plants with phloem-feeding insects and prokaryotic pathogens

Proceedings of the National Academy of Sciences, Год журнала: 2019, Номер 116(47), С. 23390 - 23397

Опубликована: Ноя. 11, 2019

For the past 4 decades, intensive molecular studies of mostly leaf mesophyll cell-infecting pathogens and chewing insects have led to compelling models plant-pathogen plant-insect interactions. Yet, some most devastating insect pests live in or feed on phloem, a systemic tissue belonging plant vascular system. Phloem tissues are difficult study, phloem-inhabiting often impossible culture, thus limiting our understanding phloem-insect/pathogen interactions at level. In this Perspective, we highlight recent literature that reports significant advances phloem with prokaryotic attempt identify critical questions need attention for future research. It is clear study represents an exciting frontier science, influx new scientific expertise funding crucial achieve faster progress important area research integral global food security.

Язык: Английский

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Whole genome sequence of the soybean aphid, Aphis glycines

Insect Biochemistry and Molecular Biology, Год журнала: 2017, Номер 123, С. 102917 - 102917

Опубликована: Янв. 22, 2017

Язык: Английский

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The Role of Silicon in Antiherbivore Phytohormonal Signalling

Frontiers in Plant Science, Год журнала: 2019, Номер 10

Опубликована: Сен. 18, 2019

The role of plant silicon (Si) in the alleviation abiotic and biotic stress is now widely recognised researched. Amongst stresses, Si known to increase resistance herbivores through biomechanical chemical mechanisms, although latter are indirect remain poorly characterised. Chemical defences principally regulated by several antiherbivore phytohormones. jasmonic acid (JA) signalling pathway particularly important has been linked supplementation, albeit with some contradictory findings. In this Perspectives article, we summarise existing knowledge how affects JA context herbivory present a conceptual model for interactions between wounded plants. Further, use novel information from grass Brachypodium distachyon underpin aspects model. We show that reduces concentrations plants subjected induction (methyl jasmonate) (Helicoverpa armigera) 34% 32%, respectively. Moreover, +Si had 13% more leaf macrohairs than -Si From study previous work, our proposes acts as physical stimulus plant, which causes small, transient JA. When subsequently attacked herbivores, they potentially faster due priming. have already invested (e.g. macrohairs), however, less utility JA-induced lower levels overall.

Язык: Английский

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