Herbivory-Induced Stomatal Opening Triggers the Dispersal of an Invasive Insect Herbivore. [PDF]
The invasive leafminer Phthorimaea absoluta uniquely manipulates plant defenses by inducing stomatal opening in tomato. This response, mediated by the stomatal regulator IQM1, enhances the release of the repellent volatile benzaldehyde. This volatile triggers the dispersal of adult moths, facilitates colonization of new hosts, and leads to rapid ...
Chen L +10 more
europepmc +2 more sources
Water availability and plant-herbivore interactions. [PDF]
Water is essential to plant growth and drives plant evolution and interactions with other organisms, such as herbivores. However, water availability fluctuates, and these fluctuations are intensified by climate change.
Jessica Kansman +11 more
core +2 more sources
Experimental support of the stress‐gradient hypothesis in herbivore–herbivore interactions [PDF]
Summary The stress‐gradient hypothesis (SGH) postulates an increase in the frequency of positive species interactions at increasing amounts of stress. While the SGH has been extensively tested in plant–plant interactions along abiotic stresses, it remains unclear whether this hypothesis could apply to higher trophic levels, such as herbivores, along ...
Dangles, Olivier +2 more
openaire +5 more sources
Noncrop flowering plants restore top-down herbivore control in agricultural fields [PDF]
Herbivore populations are regulated by bottom-up control through food availability and quality and by top-down control through natural enemies. Intensive agricultural monocultures provide abundant food to specialized herbivores and at the same time ...
Pfiffner, Lukas +13 more
core +1 more source
The herbivore-induced plant volatile methyl salicylate negatively affects attraction of the parasitoid Diadegma semiclausum [PDF]
The indirect defense mechanisms of plants comprise the production of herbivore-induced plant volatiles that can attract natural enemies of plant attackers. One of the often emitted compounds after herbivory is methyl salicylate (MeSA).
Snoeren, T.A.L. +11 more
core +1 more source
Population-related variation in plant defense more strongly affects survival of an herbivore than its solitary parasitoid wasp [PDF]
The performance of natural enemies, such as parasitoid wasps, is affected by differences in the quality of the host’s diet, frequently mediated by species or population-related differences in plant allelochemistry. Here, we compared survival, development
Jeffrey A. Harvey +3 more
core +3 more sources
Prey and Non-prey Arthropods Sharing a Host Plant: Effects on Induced Volatile Emission and Predator Attraction [PDF]
It is well established that plants infested with a single herbivore species can attract specific natural enemies through the emission of herbivore-induced volatiles.
Cornelis A. Hordijk +13 more
core +4 more sources
Plant defense and herbivore counter-defense: benzoxazinoids and insect herbivores [PDF]
Benzoxazinoids are a class of indole-derived plant chemical defenses comprising compounds with a 2-hydroxy-2H-1,4-benzoxazin-3(4H)-one skeleton and their derivatives. These phytochemicals are widespread in grasses, including important cereal crops such as maize, wheat and rye, as well as a few dicot species, and display a wide range of antifeedant ...
Felipe C. Wouters +3 more
openaire +3 more sources
Performance of specialist and generalist herbivores feeding on cabbage cultivars is not explained by glucosinolate profiles [PDF]
Plants display a wide range of chemical defences that may differ in effectiveness against generalist and specialist insect herbivores. Host plant-specific secondary chemicals such as glucosinolates (GS) in Brassicaceae typically reduce the performance of
Dam, N.M., van +9 more
core +2 more sources
When is an herbivore not an herbivore? Detritivory facilitates herbivory in a freshwater system [PDF]
AbstractHerbivory is thought to be an inefficient diet, but it independently evolved from carnivorous ancestors in many metazoan groups, suggesting that plant‐eating is adaptive in some circumstances. In this study, we tested two hypotheses to explain the adaptive evolution of herbivory: (i) the Heterotroph Facilitation hypothesis (herbivory is ...
Jessica L. Sanchez, Joel C. Trexler
openaire +3 more sources

