Article (Scientific journals)
Hypoxia combined with chilling maintains the quality of irradiated Drosophila flies: A simulated shipment experiment
Enriquez, Thomas; Sassu, Fabiana; Caceres, Carlos et al.
2021In Bulletin of Entomological Research, 111 (6), p. 645 - 657
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Keywords :
Drosophila suzukii; insect quality; low temperature; sterile insect technique; transport; Agronomy and Crop Science; Insect Science; General Medicine
Abstract :
[en] Drosophila suzukii is an invasive fruit pest in Europe and America. Females lay eggs into mature fruit that larvae consume causing important losses. Sterile insect technique (SIT) is under development to control this pest. The efficiency of this technique relies on insect quality. However, during the process from mass production to field release, several steps may compromise insect quality and therefore SIT success. Shipment of sterile insects after irradiation is a key step of SIT programmes. Generally, insects are shipped as pupae and conditions during transport need to be adapted to prevent emergence before field release, while guaranteeing insect quality. To do so, transport is usually performed under low temperature, hypoxia or a combination of both. However, the impact of multiple stressors such as irradiation followed by chilling combined with hypoxia is poorly described and has not been studied in D. suzukii. Therefore, the aim of this study was to simulate a shipment of D. suzukii pupae (irradiated or not) under different conditions (chilling combined or not with hypoxia) for various durations, and to assess consequences on emerged adults. Irradiation followed by hypoxia and/or chilling only weakly altered emergence. However, 48 h of hypoxia without chilling altered the flight ability of flies whether or not they were irradiated. Conversely, when hypoxia was combined with chilling, flight ability remained similar to that of untreated flies. The use of chilling in combination with hypoxia for 48 h could be implemented as a transportation method for SIT programme on D. suzukii.
Disciplines :
Entomology & pest control
Anatomy (cytology, histology, embryology...) & physiology
Environmental sciences & ecology
Author, co-author :
Enriquez, Thomas  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs ; University of Rennes, CNRS ECOBIO Ecosystemes, Biodiversite, Evolution, UMR 6553, Rennes, France
Sassu, Fabiana ;  Insect Pest Control Section, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Vienna, Austria ; Department of Forest and Soil Sciences Boku, University of Natural Resources and Life Sciences, Vienna, Austria
Caceres, Carlos ;  Insect Pest Control Section, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Vienna, Austria
Colinet, Herve ;  University of Rennes, CNRS ECOBIO Ecosystemes, Biodiversite, Evolution, UMR 6553, Rennes, France
Language :
English
Title :
Hypoxia combined with chilling maintains the quality of irradiated Drosophila flies: A simulated shipment experiment
Publication date :
25 December 2021
Journal title :
Bulletin of Entomological Research
ISSN :
0007-4853
eISSN :
1475-2670
Publisher :
Cambridge University Press
Volume :
111
Issue :
6
Pages :
645 - 657
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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