Infection of canola by the root pathogen Plasmodiophora brassicae increases resistance to aboveground herbivory by bertha armyworm, Mamestra configurata Walker (Lepidoptera: Noctuidae)

Weeraddana, Chaminda De Silva; Manolii, Victor P.; Strelkov, Stephen E.; Mata, A. Paulina de la; Harynuk, James J.; Evenden, Maya L.

doi:10.1016/j.plantsci.2020.110625

Cited by 6 publications

(6 citation statements)

References 75 publications

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“…More experimental evidence from canola (Brassica napus L.) and its demonstrated that infection with the clubroot pathogen, a biotrophic pathogen-induced SA pathway, significantly suppressed the growth of susceptible canola and impacted the fitness and oviposition of the bertha armyworm (Mamestra configurata Walker) in canola. It revealed that SA accumulating after pathogen infection probably suppresses JA accumulation and its positive role in plant growth [43]. In addition, IAA may attenuate SA-dependent responses, possibly by activating the expression of JA biosynthesisrelated genes and JA-regulated defense genes, including AOS, LOX2 (lipoxygenase2), and VSP2 in plant seedlings [20,42].…”

Section: Discussionmentioning

confidence: 99%

Multifunctionality of Jasmonic Acid Accumulation during Aphid Infestation in Altering the Plant Physiological Traits That Suppress the Plant Defenses in Wheat Cultivar XN979

Yan

Guo

et al. 2023

Insects

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Crop plants have coevolved phytohormone-mediated defenses to combat and/or repel their colonizers. The present study determined the effects of jasmonic acid (JA) accumulation during aphid infestation on the preference and performance of Sitobion miscanthi Takahashi (Hemiptera: Aphididae), and its potential role in fine-tuning hormone-dependent responses in XN979 wheat cultivar seedlings was evaluated via the transcriptional profiles of marker genes related to JA- and salicylic acid (SA)-dependent responses. The preference experiment and the life table data reveal that direct foliage spraying of 2.5 mM methyl jasmonate (MeJA) exhibited weak negative or positive effects on the preferential selection and the population dynamics and oviposition parameters of S. miscanthi. The transcription level of phytohormone biosynthesis genes shows that foliage spraying of MeJA significantly upregulated the marker genes in the JA biosynthesis pathway while downregulating the SA pathway. In addition, either MeJA treatment or previous aphid infestation significantly induced upregulated transcription of the genes involved in the JA- and SA-dependent defense responses, and the transcription level of the tryptophan decarboxylase (TaTDC) gene, which facilitates the conversion of L-tryptophan to tryptamine, was rapidly upregulated after the treatments as well. The main products of tryptamine conversion could play a crucial role in suppressing SA-dependent defense responses. These results will provide more experimental evidence to enable understanding of the antagonistic interaction between hormone signaling processes in cereals under aphid infestation.

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Section: Discussionmentioning

confidence: 99%

Multifunctionality of Jasmonic Acid Accumulation during Aphid Infestation in Altering the Plant Physiological Traits That Suppress the Plant Defenses in Wheat Cultivar XN979

Yan

Guo

et al. 2023

Insects

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“…They can influence searches for mates, host selection, foraging, and egg-laying decisions [63,64]. For example, due to changes in volatile organic compounds, insects laid few eggs on clubroot-infected canola plants [65]. The VOC mixture may vary by the species of the herbivore, the plant species, the environmental conditions, and the number of herbivore species attacking the plant [66].…”

Section: Special Volatiles Released After Being Attacked By Aphidsmentioning

confidence: 99%

“…However, not only plants are infected with herbivores, but also pathogens. For example, there is information on insects choosing uninoculated pathogens, not inoculated canola, for oviposition [65]. Allyl isothiocyanates released by cruciferous plants have a strong attractive effect on diaeretiella rapae (Hymenoptera: Braconidae), and the sinigrin released by these plants is a chemical clue for D.rapae to find hosts [68,69].…”

Section: Special Volatiles Released After Being Attacked By Aphidsmentioning

confidence: 99%

“…SA signals played a vital role in the defense response against a variety of pathogens [105,106], and SA could influence biotrophic pathogens specifically. For example, for a biotrophic pathogen, Plasmodiophora brassicae infection induced higher SA defenses in canola [65]. Meanwhile, the production of JA and ET were involved in the regulation of plant responses to herbivores, necrotrophic pathogens, and nonpathogenic microbes [105,107,108].…”

Section: The Effect Of Phytohormone On Brassica Crop-tumv-aphid Inter...mentioning

confidence: 99%

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Resistance Management through Brassica Crop–TuMV–Aphid Interactions: Retrospect and Prospects

Huang

Zhang

et al. 2022

Horticulturae

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Turnip mosaic virus (TuMV) is an important threat to the yield and quality of brassica crops in China, and has brought serious losses to brassica crops in the Far East, including China and the north. Aphids (Hemiptera, Aphidoidea) are the main mediators of TuMV transmission in field production, and not only have strong virus transmission ability (small individuals, strong concealment, and strong fecundity), but are also influenced by the environment, making them difficult to control. Till now, there have been few studies on the resistance to aphids in brassica crops, which depended mainly on pesticide control in agriculture production. However, the control effect was temporarily effective, which also brought environmental pollution, pesticide residues in food products, and destroyed the ecological balance. This study reviews the relationship among brassica crop–TuMV, TuMV–aphid, and brassica crop–aphid interactions, and reveals the influence factors (light, temperature, and CO2 concentration) on brassica crop–TuMV–aphid interactions, summarizing the current research status and main scientific problems about brassica crop–TuMV–aphid interactions. It may provide theoretical guidance for opening up new ways of aphid and TuMV management in brassica crops.

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“…), during pathogen and pest attack, highlighting the role of VOCs in plant-pathogen/pest interactions [13,14]. Examples show that defensive volatile chemicals can lead to an influence on multitrophic interactions, as a recent study showed that an infection of canola by the root pathogen Plasmodiophora brassicae Woronin reduced oviposition Agronomy 2022, 12, 272 2 of 13 by bertha army worm, Mamestra configurata Walker (Lepidoptera: Noctuidae) [15]. Further, VOCs released from resistant plants can trigger specific defensive responses in other parts of the plant itself, and/or to neighboring plants of various species [12].…”

Section: Introductionmentioning

confidence: 99%

Characterization of VOCs Emitted by Foliage of Grapevine cv. Isabella for Prospecting Innovative Cropping Systems

et al. 2022

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Volatile organic compounds play an important role in communication within plants as well as with other organisms. In this work we identified the volatile organic compounds (VOCs) emitted from the foliage of the grapevine cv. Isabella, a largely known hybrid of Vitis vinifera × Vitis labrusca. Our data show 25 VOCs emitted by cv. Isabella. Different compound classes were found, including alcohols, hydrocarbons, esters, terpenes, ketones, and a green leaf volatile (GLV). The study highlighted differences between volatile profiles for diurnal and nocturnal treatments. The compounds: trans-3-dodecene, 5,5 dibutylnonane, ethyl 2-methyllactate, 2-hexanol, 3-ethyl-2-heptanol, 3-nonanol, and 2-nonanol, have not been previously reported for Vitis vinifera foliage. Notably, eight compounds emitted by cv. Isabella, 1-heptanol, 1-octanol, 2-hexanol, 2-nonanone, β-pinene, camphene, cis-hexenyl acetate, and phenethyl alcohol, are of relevant interest for their role in plant defense. New knowledge on the emission of these compounds in cv. Isabella can help to understand the mechanisms of pathogen tolerance of this genotype and could be an important step in prospecting innovative cropping systems.

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Infection of canola by the root pathogen Plasmodiophora brassicae increases resistance to aboveground herbivory by bertha armyworm, Mamestra configurata Walker (Lepidoptera: Noctuidae)

Cited by 6 publications

References 75 publications

Multifunctionality of Jasmonic Acid Accumulation during Aphid Infestation in Altering the Plant Physiological Traits That Suppress the Plant Defenses in Wheat Cultivar XN979

Multifunctionality of Jasmonic Acid Accumulation during Aphid Infestation in Altering the Plant Physiological Traits That Suppress the Plant Defenses in Wheat Cultivar XN979

Resistance Management through Brassica Crop–TuMV–Aphid Interactions: Retrospect and Prospects

Characterization of VOCs Emitted by Foliage of Grapevine cv. Isabella for Prospecting Innovative Cropping Systems

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