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Yeast species affects feeding and fitness of Drosophila suzukii adults

Spitaler, Urban, Bianchi, Flavia, Eisenstecken, Daniela, Castellan, Irene, Angeli, Sergio, Dordevic, Nikola, Robatscher, Peter, Vogel, Rudi F., Koschier, Elisabeth H. and Schmidt, Silvia 2020. Yeast species affects feeding and fitness of Drosophila suzukii adults. Journal of Pest Science 93 (4) , 1295–1309. 10.1007/s10340-020-01266-y

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Yeasts play an important role in the life cycle and biology of the insect pest Drosophila suzukii (Matsumura), commonly known as the spotted wing drosophila (SWD). Adult and larvae of this species are known to feed and benefit from yeast in their diet. In addition, yeasts were found to be attractive to SWD and were repeatedly found to be associated with SWD. Among those, Hanseniaspora uvarum is the most commonly mentioned. The present study explores the chemical composition and the effects of three H. uvarum strains and five yeast species (Saccharomyces cerevisiae, Candida sp., Issatchenkia terricola, Metschnikowia pulcherrima and Saccharomycopsis vini) in the diet of SWD adults. The different yeast species used in this study influenced mortality, fecundity and ingestion by SWD females. Hanseniaspora uvarum and S. vini were preferably ingested and increased fecundity of SWD females. The intra- and extracellular concentrations of compounds, such as amino acids, carbohydrates, sugar alcohols and organic acids, produced or consumed by yeasts differed among the species. Knowledge of the interaction of different yeast species with SWD and specific differences in the profile of compounds of yeast can help to improve the development of control strategies against the insect pest by promoting the ingestion of attract-and-kill formulations based on the combinations of yeasts and an appropriate insecticide.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Additional Information: This article is licensed under a Creative Commons Attribution 4.0 International License
Publisher: Springer Verlag (Germany)
ISSN: 1612-4758
Date of First Compliant Deposit: 2 February 2021
Date of Acceptance: 18 July 2020
Last Modified: 04 Aug 2022 01:39

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