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Above-ground herbivory by red milkweed beetles facilitates above- and below-ground conspecific insects and reduces fruit production in common milkweed
Summary Initial herbivory and induced plant responses can influence subsequent above- and below-ground herbivore attack. When two life stages of the same herbivore damage different plant partsExpand
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Using knockout mutants to reveal the growth costs of defensive traits
We used a selection of Arabidopsis thaliana mutants with knockouts in defence genes to demonstrate growth costs of trichome development and glucosinolate production. Four of the seven defence mutantsExpand
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Population growth and sequestration of plant toxins along a gradient of specialization in four aphid species on the common milkweed Asclepias syriaca
Summary 1. Dietary specialization in insect herbivores has long been hypothesized to predict tolerance of plant defences, with more specialized herbivores being highly tolerant of and sometimesExpand
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Endophytic fungi decrease available resources for the aphid Rhopalosiphum padi and impair their ability to induce defences against predators
Abstract 1. The production of winged morphs is a well known mechanism of induced defence in aphids to escape from natural enemies, and is also a reaction to poor resource quality.
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What doesn’t kill you makes you stronger: The burdens and benefits of toxin sequestration in a milkweed aphid
1.Specialized insect herbivores commonly co‐opt plant defences for protection against predators, but the costs, benefits, and mechanisms of sequestration are poorly understood. 2.We quantifiedExpand
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Integration of plant primary and secondary metabolites as fitness-relevant foraging cues for a specialist herbivore
Plants produce complex mixtures of primary and secondary metabolites. Herbivores use these metabolites as behavioral cues to increase their fitness. However, how herbivores integrate differentExpand
Integration of plant metabolic complexity into fitness-relevant foraging by a specialist herbivore
Abstract Plants produce complex mixtures of primary and secondary metabolites. Herbivores use these metabolites as behavioral cues to increase their fitness. However, how herbivores integrateExpand
Tissue-specific volatile-mediated defense regulation in maize leaves and roots
Plant leaves that are exposed to herbivore induced plant volatiles (HIPVs) respond by increasing their defenses. Whether this phenomenon also occurs in the roots is unknown. Using maize (Zea mays),Expand
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Less Is More: a Mutation in the Chemical Defense Pathway of Erysimum cheiranthoides (Brassicaceae) Reduces Total Cardenolide Abundance but Increases Resistance to Insect Herbivores.
Erysimum cheiranthoides L (Brassicaceae; wormseed wallflower) accumulates not only glucosinolates, which are characteristic of the Brassicaceae, but also abundant and diverse cardenolides. TheseExpand
The plant metabolome guides fitness-relevant foraging decisions of a specialist herbivore
Plants produce complex mixtures of primary and secondary metabolites. Herbivores use these metabolites as behavioral cues to increase their fitness. However, how herbivores combine and integrateExpand
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