edoc

Influence of atmospheric CO₂ enrichment on induced defence and growth compensation after herbivore damage in Lotus corniculatus

Bazin, A. and Goverde, M. and Erhardt, A. and Shykoff, J. A.. (2002) Influence of atmospheric CO₂ enrichment on induced defence and growth compensation after herbivore damage in Lotus corniculatus. Ecological Entomology, 27. pp. 271-278.

Full text not available from this repository.

Official URL: http://edoc.unibas.ch/dok/A5252878

Downloads: Statistics Overview

Abstract

1. Plant growth and chemical defence compounds in four Lotus corniculatus genotypes exposed to factorial combinations of ambient and elevated carbon dioxide, and herbivory by caterpillars of Polyommatus icarus were measured to test the predictions of the carbon/nutrient balance hypothesis. 2. Shoot and root biomass, allocation to shoots versus roots, and carbon-based defence compounds were greater under elevated carbon dioxide. Pupal weight of P. icarus was greater and development time shorter under elevated carbon dioxide. 3. Herbivory decreased shoot growth relative to root growth and production of nitrogen-based defence (cyanide). Young leaves contained more defence compounds than old leaves, and this response depended on carbon dioxide and herbivory treatments (significant interactions). 4. Genotype-specific responses of plants to carbon dioxide and herbivory were found for the production of cyanide. Furthermore, maternal butterfly-specific responses of caterpillars to carbon dioxide were found for development time. This suggests the existence of genetic variation for important defence and life-history traits in plants and herbivores in response to rising carbon dioxide levels.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Ehemalige Einheiten Umweltwissenschaften > Botanik (Erhardt)
UniBasel Contributors:Erhardt, Andreas
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Blackwell Science
ISSN:0307-6946
Note:Publication type according to Uni Basel Research Database: Journal article
Related URLs:
Identification Number:
Last Modified:22 Mar 2012 14:28
Deposited On:22 Mar 2012 14:03

Repository Staff Only: item control page