Article (Scientific journals)
Effect of starvation on the cold tolerance of adult Drosophila suzukii (Diptera: Drosophilidae)
De Ro, Madelena; Enriquez, Thomas; Bonte, Jochem et al.
2021In Bulletin of Entomological Research, 111 (6), p. 694 - 704
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Keywords :
Body composition; cold hardiness; energy reserves; food deprivation; spotted wing drosophila; Agronomy and Crop Science; Insect Science; General Medicine
Abstract :
[en] The spotted wing drosophila, Drosophila suzukii, is an invasive pest in Europe and North America. Access to resources may be challenging in late fall, winter and early spring and flies may suffer from food deprivation along with cold stress in these periods. Whereas a plethora of studies have been performed on the overwintering capacity of D. suzukii, the effects of starvation on the fly's cold tolerance have not been addressed. In the present study, young D. suzukii adults (reared at 25°C, LD 12:12 h) were deprived of food for various periods (0, 12, 24 and 36 h), after which chill coma recovery time, critical thermal minimum, as well as acute and chronic cold tolerance were assessed. Additionally, the body composition of adults (body mass, water content, total lipid, glycerol, triglycerides, glucose and proteins) before and after starvation periods was analysed to confirm that starvation had detectable effects. Starved adults had a lower body mass, and both lipid and carbohydrate levels decreased with starvation time. Starvation slightly increased critical thermal minimum and affected chill coma recovery time; however, these changes were not gradual with starvation duration. Starvation promoted acute cold tolerance in both sexes. This effect appeared faster in males than in females. Food deprivation also led to enhanced survival to chronic cold stress. Short-term starvation was thus associated with significant changes in body composition in D. suzukii, and these alterations could alter some ecologically relevant traits related to cold tolerance, particularly in females. Our results suggest that food deprivation during short time (<36 h) can promote cold tolerance (especially survival after a cold stress) of D. suzukii flies. Future studies should address the ecological significance of these findings as short food deprivation may occur in the fields on many occasions and seasons.
Disciplines :
Entomology & pest control
Anatomy (cytology, histology, embryology...) & physiology
Environmental sciences & ecology
Author, co-author :
De Ro, Madelena;  Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Plant - Crop Protection Entomology, Merelbeke, Belgium ; Faculty of Bioscience Engineering, Department of Plants and Crops, Ghent University, Gent, Belgium
Enriquez, Thomas  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs ; University of Rennes, CNRS ECOBIO Ecosystèmes, Biodiversite, Evolution - UMR 6553, Rennes, France
Bonte, Jochem;  Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Plant - Crop Protection Entomology, Merelbeke, Belgium
Ebrahimi, Negin;  Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Plant - Crop Protection Entomology, Merelbeke, Belgium
Casteels, Hans;  Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Plant - Crop Protection Entomology, Merelbeke, Belgium
De Clercq, Patrick;  Faculty of Bioscience Engineering, Department of Plants and Crops, Ghent University, Gent, Belgium
Colinet, Herve ;  University of Rennes, CNRS ECOBIO Ecosystèmes, Biodiversite, Evolution - UMR 6553, Rennes, France
Language :
English
Title :
Effect of starvation on the cold tolerance of adult Drosophila suzukii (Diptera: Drosophilidae)
Publication date :
24 December 2021
Journal title :
Bulletin of Entomological Research
ISSN :
0007-4853
eISSN :
1475-2670
Publisher :
Cambridge University Press
Volume :
111
Issue :
6
Pages :
694 - 704
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ANR - Agence Nationale de la Recherche [FR]
Available on ORBi :
since 13 December 2022

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