Ecological Dynamics of Volatile Organic Compound–Mediated Interactions in Aristolochia Contorta With Parasitoids and Herbivores

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(4)

Published: April 1, 2025

In the evolutionary arms race between plants and herbivores, sophisticated mechanisms of indirect plant defense play a pivotal role. This study investigated role volatile organic compounds (VOCs) in attracting parasitoid Ooencyrtus spp. to Aristolochia contorta, while also providing insights into interactions among A. herbivore Sericinus montela, tritrophic context. utilized field surveys, olfactometer experiments, Gas Chromatography-Mass Spectrometry (GC-MS) analysis investigate VOCs. Field surveys showed 54.6% egg parasitism rate, with quadrats containing contorta larvae more than those alone. bioassays, preferred leaves damaged by pattern wheel simulating damage, 46.8% choosing these over undamaged controls. Leaves treated larval saliva were similarly attractive, drawing 48.7% spp.; however, difference attraction saliva-treated untreated was not statistically significant, suggesting may be central attraction. GC-MS identified VOCs leaves, including hexyl acetate, cyclohexene, δ-cadinene, α-pinene, β-caryophyllene, minimal amounts exo-isocitral β-pinene. Despite complex responses, our suggests saliva-induced do significantly boost finding implies that VOC response damage application is multifaceted, serving multiple defensive functions, amount insufficient substantially influence behavior toward leaves. Our results emphasize contorta's contribute understanding ecological dynamics within plant-parasitoid-herbivore interactions. Moreover, findings suggest new avenues for exploring roles chemical signals, highlighting facilitated cues defenses.

Language: Английский

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Volatile-mediated between-plant communication in Scots pine and the effects of elevated ozone

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2022, Volume and Issue: 289(1982)

Published: Sept. 7, 2022

Conifers are dominant tree species in boreal forests, but susceptible to attack by bark beetles. Upon beetle attack, conifers release substantial quantities of volatile organic compounds known as herbivore-induced plant volatiles (HIPVs). Earlier studies broadleaved plants have shown that HIPVs provide information neighbouring plants, which may enhance their defences. However, the defence responses HIPV-receiver not been described for conifers. Here we advance knowledge plant–plant communication documenting a suite receiver-plant bark-feeding-induced volatiles. Scots pine seedlings exposed were more resistant subsequent weevil feeding and received less damage. Receiver had both induced primed emissions resin ducts an increased epithelial cell (EC) mean area number cells located second EC layer. Importantly, HIPV exposure stomatal conductance net photosynthesis rate receiver plants. Receiver-plant also examined under elevated ozone conditions found be significantly altered. final outcome was affected. These findings demonstrate modulate conifer metabolism through spanning chemical defence. The adjusted stress, benefits remain intact.

Language: Английский

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Two in one: the neotropical mirid predator Macrolophus basicornis increases pest control by feeding on plants

Pest Management Science, Journal Year: 2022, Volume and Issue: 78(8), P. 3314 - 3323

Published: April 29, 2022

Plant defenses activated by European zoophytophagous predators trigger behavioral responses in arthropods, benefiting pest management. However, repellence or attraction of pests and beneficial insects seems to be species-specific. In the neotropical region, mirid predator Macrolophus basicornis has proved a promising biological control agent important tomato pests; nevertheless, benefits its phytophagous behavior have never been explored. Therefore, we investigated if M. phytophagy activates plant consequences for herbivores natural enemies.Regardless induction period on plants, Tuta absoluta females showed no preference odors emitted induced plants. oviposited less plants 72 h than contrast, repelled Bemisia tabaci females, number eggs laid was reduced. Although Trichogramma pretiosum between mirid-induced observed high parasitoid Encarsia inaron conspecifics basicornis. While down-regulated expression genes involving salicylic acid (SA) pathway over time, related jasmonic (JA) were up-regulated, increasing emissions fatty-acid derivatives terpenes, which might influenced arthropods' host/prey choices.Based both molecular findings, our results indicated that addition predation, resistance indirectly through phytophagy. This study is starting point pave way novel sustainable pest-management strategy region. © 2022 Society Chemical Industry.

Language: Английский

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Enhancement of tomato hedonic quality through fertiliser supplementation with a biostimulant complex comprising molasses, Aloe vera extract and fish-hydrolysate

New Zealand Journal of Crop and Horticultural Science, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 10

Published: Feb. 21, 2024

Tomato (Solanum lycopersicum) is a popular fruit, grown worldwide for its culinary usages in fresh, processed and cooked foods. Additionally, consumption of tomato fruit associated with health benefits due to their functional food properties. The signature hedonic measures fruits are flavour, aroma colour, which function as drivers consumer perception quality therefore purchasing habits. Accordingly, there interest strategies enhance these through supplementation fertiliser regimens biostimulants, have demonstrated improvements other crops. Herein, tomatoes were hydroponically without biostimulant complex (BC) comprising molasses, Aloe vera extract fish-hydrolysate. Results identified significant increases flower count (1.68-fold, p = 0.033), the overall mouthfeel (p 0.022) visual assessment 0.005), however decreased flavonoid content (0.61-fold, 0.022). growth BC was enhancements quantity at cost quality. These findings support utilisation biostimulants goods' cultivation perception.

Language: Английский

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Advancing tomato crop protection: Green leaf volatile-mediated defense mechanisms against Nesidiocoris tenuis plant damage

Biological Control, Journal Year: 2024, Volume and Issue: 192, P. 105517 - 105517

Published: April 23, 2024

Although Nesidiocoris tenuis is highly effective as a biological control agent, it can also damage tomato plants due to its zoophytophagous behavior. When N. pierces the stems and petioles of with stylets, triggers callose deposition subsequent cell death, resulting in blocked nutrient transport, floral abortions, or wilting tender shoots. Recently, has been shown that exposure green leaf volatile (Z)-3-hexenyl propanoate [(Z)-3-HP] activates defensive mechanisms, including regulation genes involved synthesis degradation callose. In this study, conducted under greenhouse conditions, we tested hypothesis caused by could be reduced exposing (Z)-3-HP through polymeric dispensers. Tomato exposed non-exposed were inoculated tenuis. established both groups no significant differences between two treatments. However, hypothesized, was significantly lower (Z)-3-HP. Gene expression analysis salicylic, jasmonic, abscisic acids, along histochemical staining methods, used compare responses infested solely versus those Our findings confirm influence on differential activation treatments (Z)-3-HP-exposed plants. These results pave way for improved management enhancing plant's defenses based inter-plant communication.

Language: Английский

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Plant volatile-triggered defense in citrus against biotic stressors

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

Published: July 10, 2024

Plants employ sophisticated defense mechanisms, including releasing volatile organic compounds, to defend against biotic and abiotic stresses. These compounds play a crucial role in plant by attracting natural enemies facilitating communication between plants activate mechanisms. However, there has been no research on how exposure these activates mechanisms citrus plants. To elucidate the underlying governing defensive activation, we conducted molecular analysis of rootstock Citrange carrizo [a hybrid

Language: Английский

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Plant defences for enhanced integrated pest management in tomato

Annals of Applied Biology, Journal Year: 2022, Volume and Issue: 180(3), P. 328 - 337

Published: April 28, 2022

Abstract Plants developed a series of defence mechanisms to counteract the attack herbivores. These can impact on food‐webs at various trophic levels, in both natural and managed ecosystems, such as crops. The biochemical ecological bases behind these processes are reviewed here by highlighting differences direct indirect, constitutive induced defences. In integrated pest management (IPM), several control tools applied an economically sound way order increase crop resilience reduce reliance synthetic pesticides. Plant resistance is thus crucial aspect preventive strategies agroecosystems, including tomato. this context, we review current literature dealing with physiology biochemistry tomato plants terms metabolite pathways multitrophic interactions. We also describe recent advances plant defence‐based obtained studying interactions between pests system.

Language: Английский

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Screening of biological resources of insects and mites for biological control of pests in greenhouses

Plant Protection News, Journal Year: 2023, Volume and Issue: 106(1), P. 49 - 70

Published: May 24, 2023

The peculiarities of agriculture technologies in modern greenhouse cause complications screening natural enemies, because increasing the requirements for their adaptive abilities, feasibility cost-effective mass production, long-term storage and transportation. To be effective greenhouses species should start breeding as quickly possible pest hot spots have appeared. Adopted enemies mainly ruderal life strategy. Regular invasions new phytophages an impact on plant protection systems. At same time, programs introduction been stopped due to potential negative introduced biodiversity indigenes communities. review analyses changes that occurred a result crop production complication phytosanitary situation.

Language: Английский

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Exogenous Methyl Salicylate treatment increases tomato zingiberene levels and decreases infestation of adult whiteflies and red spider mites

Phytoparasitica, Journal Year: 2024, Volume and Issue: 52(2)

Published: March 9, 2024

Language: Английский

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Efficacy of Botanical Pesticides in Insecticidal activity against the Banana Fruit Scarring Beetle Basilepta subcostata an In vitro analysis

Journal of Natural Pesticide Research, Journal Year: 2024, Volume and Issue: unknown, P. 100101 - 100101

Published: Nov. 1, 2024

Language: Английский

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