| Title: | "Plant acclimation to elevated CO(2) affects important plant functional traits, and concomitantly reduces plant colonization rates by an herbivorous insect" |
| Author(s): | Klaiber J; Najar-Rodriguez AJ; Piskorski R; Dorn S; |
| Address: | "ETH Zurich, Institute of Agricultural Sciences/Applied Entomology, Schmelzbergstrasse 9/LFO, 8092, Zurich, Switzerland" |
| DOI: | 10.1007/s00425-012-1750-7 |
| ISSN/ISBN: | 1432-2048 (Electronic) 0032-0935 (Linking) |
| Abstract: | "Plants growing under elevated CO(2) concentration may acclimatize to this environmental change by modification of chemical, physiological, and/or morphological traits. As a consequence, not only plant functioning but also plant-insect interactions might be altered, with important consequences particularly for agricultural systems. Whereas most studies have focused on the plant acclimation effects of elevated CO(2) with regard to crop growth and productivity, acclimation effects on the behavioral response of insects associated with these plants have been largely neglected. In this study, we used a model system comprised of Brussels sprout Brassica oleraceae var. gemmifera and a specialized herbivorous insect, the cabbage aphid Brevicoryne brassicae, to test for the effects of various periods of exposure to an elevated (2x ambient) CO(2) concentration on key plant functional traits and on host plant location behavior by the insect, assessed as plant colonization rates. Elevated CO(2) had no measurable effect on colonization rates or total plant volatile emissions after a 2-week exposure, but it led to 15 and 26 % reductions in plant colonization rates after 6- and 10-week exposures, respectively. This reduction in plant colonization was associated with significant decreases in leaf stomatal conductance and plant volatile emission. Terpene emission, in particular, exhibited a great reduction after the 10-week exposure to elevated CO(2). Our results provide empirical evidence that plants might acclimatize to a future increase in CO(2), and that these acclimation responses might affect host plant choice and colonization behavior by herbivorous insects, which might be advantageous from the plant's perspective" |
| Keywords: | "Acclimatization/*drug effects Animals Aphids/*physiology Brassica/metabolism/*parasitology Carbon Dioxide/*pharmacology Dose-Response Relationship, Drug Feeding Behavior/drug effects Gas Chromatography-Mass Spectrometry Herbivory/drug effects Host-Parasit;" |
| Notes: | "MedlineKlaiber, Jeannine Najar-Rodriguez, Adriana J Piskorski, Rafal Dorn, Silvia eng Germany 2012/09/13 Planta. 2013 Jan; 237(1):29-42. doi: 10.1007/s00425-012-1750-7. Epub 2012 Sep 12" |
