Article (Scientific journals)
Combined Elevation of Temperature and CO2 Impacts the Production and Sugar Composition of Aphid Honeydew.
Blanchard, S; Verheggen, François; Van De Vreken, Isabelle et al.
2022In Journal of Chemical Ecology
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Keywords :
Aphids; Climate change; Honeydew; Mutualism; Sugars; Biochemistry; Ecology, Evolution, Behavior and Systematics; General Medicine
Abstract :
[en] Honeydew is the keystone of many interactions between aphids and their predators, parasitoids, and mutualistic partners. Despite the crucial importance of honeydew in aphid-ant mutualism, very few studies have investigated the potential impacts of climate change on its production and composition. Here, we quantified changes in sugar compounds and the amount of honeydew droplets released by Aphis fabae reared on Vicia faba plants under elevated temperature and/or CO2 conditions. Following the combined elevation of these two abiotic factors, we found a significant increase in the fructose content of A. fabae honeydew, accompanied by nonsignificant trends of increase in total honeydew production and melezitose content. The environmental conditions tested in this study did not significantly impact the other honeydew sugar contents. The observed changes may be related to changes in phloem composition under elevated CO2 conditions as well as to increases in aphid metabolism and sap ingestion under elevated temperatures. Although limited, such changes in aphid honeydew may concurrently reinforce ant attendance and mutualism under elevated temperature and CO2 conditions. Finally, we discuss the enhancing and counteracting effects of climate change on other biological agents (gut microorganisms, predators, and parasitoids) that interact with aphids in a complex multitrophic system.
Disciplines :
Entomology & pest control
Author, co-author :
Blanchard, S;  Unit of Social Ecology, C.P. 231, Université Libre de Bruxelles, Avenue F.D. Roosevelt, 50, 1050, Bruxelles, Belgique ; Functional and Evolutionary Entomology, Gembloux Agro-Bio Tech, TERRA, Université de Liège, Avenue de la Faculté d'Agronomie 2B, 5030, Gembloux, Belgique
Verheggen, François  ;  Université de Liège - ULiège > TERRA Research Centre > Gestion durable des bio-agresseurs
Van De Vreken, Isabelle ;  Université de Liège - ULiège > Département GxABT > Smart Technologies for Food and Biobased Products (SMARTECH)
Richel, Aurore  ;  Université de Liège - ULiège > TERRA Research Centre > Smart Technologies for Food and Biobased Products (SMARTECH)
Detrain, C ;  Unit of Social Ecology, C.P. 231, Université Libre de Bruxelles, Avenue F.D. Roosevelt, 50, 1050, Bruxelles, Belgique. claire.detrain@ulb.be
Language :
English
Title :
Combined Elevation of Temperature and CO2 Impacts the Production and Sugar Composition of Aphid Honeydew.
Publication date :
29 September 2022
Journal title :
Journal of Chemical Ecology
ISSN :
0098-0331
eISSN :
1573-1561
Publisher :
Springer Science and Business Media LLC, United States
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Available on ORBi :
since 03 October 2022

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