ArticleAnnals of botany2013
Effects of insect herbivory on induced chemical defences and compensation during early plant development in Penstemon virgatus.
Article in Annals of botany, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed.
- From Data to Discovery: Characterizing the Scope and Limitations of Seedling Trait Studies in the U.S. With the EPiC Database.Ecology and evolution · 2026Article
- Intraspecific and intra-individual chemodiversity and phenotypic integration of terpenes across plant parts and development stages in an aromatic plant.Plant biology (Stuttgart, Germany) · 2025Article
- Early damage enhances compensatory responses to herbivory in wild lima bean.Frontiers in plant science · 2022Article
- Adult facilitation becomes competition as juvenile soapberry bugs age.Ecology and evolution · 2021Article
- Article
- The Perennial Penstemon: Variation in Defensive Chemistry Across Years, Populations, and Tissues.Journal of chemical ecology · 2017Article
- Effects of a native parasitic plant on an exotic invader decrease with increasing host age.AoB PLANTS · 2015Article
- Population divergence in the ontogenetic trajectories of foliar terpenes of a Eucalyptus species.Annals of botany · 2015Article
- Seedling-herbivore interactions: insights into plant defence and regeneration patterns.Annals of botany · 2013Review
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2 authors.
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Abstract
BACKGROUND AND
aimsThe lack of studies assessing the simultaneous expression of tolerance and resistance traits during seedling development and overall seedling defences as compared with adult plants, in general, constitutes a significant research need that can greatly improve our understanding of overall investment in defences during plant ontogeny.
methodsUsing two seedling and two juvenile stages of the perennial herb Penstemon virgatus (Plantaginaceae) evaluations were made of (a) patterns of investment in constitutive chemical defences [i.e. iridoid glycosides (IGs)], and (b) simultaneous variation in the short-term ability of seedling and juvenile stages to induce resistance traits, measured as induced chemical defences, or tolerance traits, measured as compensatory re-growth following moderate levels of damage by a specialist insect herbivore. KEY
resultsPlants were highly defended during most of their transition from seedling to early juvenile stages, reaching a constant approx. 20 % dry weight total IGs. Furthermore, following 30 % above-ground tissue damage, seedlings and juvenile stages were equally able to induce resistance, by raising their IG concentration by approx. 8 %, whereas compensatory re-growth was only achieved at young juvenile but not seedling stages.
conclusionsTwo major trends emerged from this study: (1) in contrast to expected and previously observed trends, in this perennial plant species, seedlings seem to be one of the most well-defended stages as compared with adult ones; (2) high levels of constitutive defences did not limit the ability of young developmental stages to induce resistance following damage, although this response may come with a cost (i.e. decreased compensation) in young seedling stages. Hence, as has been previously demonstrated in few other systems, these results points towards an indirect evidence for a trade-off between tolerance and resistance traits at some, but not all, developmental stages; making them often difficult to detect.
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