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Effects of Terpene Chemotypes of Melaleuca alternifolia on Two Specialist Leaf Beetles and Susceptibility to Myrtle Rust
- C. Bustos‐Segura, C. Külheim, W. Foley
- Environmental Science, BiologyJournal of Chemical Ecology
- 18 September 2015
Although there is evidence that terpene chemotypes are a mediator of the interaction with natural enemies, the most detrimental pest of this plant, P. tigrina, does not seem to be affected by variation in plant terpenes.
Foliar Terpene Chemotypes and Herbivory Determine Variation in Plant Volatile Emissions
It was found that foliar chemistry influenced differences in the composition of terpene emissions, but those emissions were minimal in intact plants, suggesting the main origin of emissions is the stored terpenes and not de novo biosynthesized volatiles.
Intraspecific diversity of terpenes of Eucalyptus camaldulensis (Myrtaceae) at a continental scale
Plants show a high degree of intraspecific variation in several traits including plant secondary metabolites. This variation can be influenced by genetic and environmental factors that result in…
A phylogenomic approach reveals a low somatic mutation rate in a long-lived plant
A novel method to measure somatic mutations in individual plants is demonstrated and this approach is used to estimate the somatic mutation rate in a large, long-lived, phenotypically mosaic Eucalyptus melliodora tree.
Intraspecific chemical diversity among neighbouring plants correlates positively with plant size and herbivore load but negatively with herbivore damage.
- C. Bustos‐Segura, E. Poelman, M. Reichelt, J. Gershenzon, R. Gols
- Environmental ScienceEcology letters
The results suggest that intraspecific variation in secondary chemistry among neighbouring plants is important in determining the structure of the associated insect community and positively affects plant performance.
Evolutionary changes in plant tolerance against herbivory through a resurrection experiment
- C. Bustos‐Segura, J. Fornoni, J. Núñez‐Farfán
- Environmental ScienceJournal of evolutionary biology
- 1 March 2014
Results are consistent with the expectation that when resistance fails to control herbivory, tolerance should play a more important role in the evolution of the interaction.
Host density and parasitoid presence interact and shape the outcome of a tritrophic interaction on seeds of wild lima bean
The interaction between the seed beetle Zabrotes subfasciatus and its parasitoid Stenocorse bruchivora and two populations of wild lima bean was investigated, showing that the impact of parasitoids on seed beetles is contingent on the interaction between density-mediated and trait-mediated effects.
Growth and Development of Helicoverpa armigera (Lepidoptera: Noctuidae) Larvae Infected by Heliothis virescens ascovirus 3i (HvAV-3i)
Results indicate that inoculation of HvAV-3i via needle injection, but not via oral ingestion, significantly reduced the growth and development of H. armigera larvae.
Evolutionary changes in an invasive plant support the defensive role of plant volatiles
Parasitoids of leaf herbivores enhance plant fitness and do not alter caterpillar‐induced resistance against seed beetles
Investigating whether parasitoids of leaf‐feeding caterpillars affect plant fitness and the consequences for seed‐dwelling insects at the second and third trophic levels through plant‐mediated effects revealed that the indirect interaction between plants and Parasitoids can be beneficial in communities with multiple herbivore species.