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Dietary yeast affects preference and performance in Drosophila suzukii
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Dietary yeast affects preference and performance in Drosophila suzukii
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Dietary yeast affects preference and performance in Drosophila suzukii
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Journal Article
Dietary yeast affects preference and performance in Drosophila suzukii
2018
Overview
Yeasts play an important role in nutrition physiology and host attraction of many
Drosophila
species, and associations with various yeast species are documented for several drosophilid flies. The pest
Drosophila suzukii
(Matsumura) has a predominant association with the yeast
Hanseniaspora uvarum.
However, research has not been conducted on the nutritional physiology of the yeasts associated with
D. suzukii
(spotted wing drosophila). Therefore, in this study, we determined whether dietary yeast was nutritionally relevant and whether yeast species closely associated with
D. suzukii
positively affected life-history traits. Our results confirm a crucial role of dietary yeast in the larval development and survival of
D. suzukii.
Furthermore, we found specific effects of the closely associated yeast species
H. uvarum
and
Candida
sp. on larval survival. Observations of the egg-laying behaviour of
D. suzukii
on cherry fruits artificially colonised with different yeast species revealed that the number of eggs laid increased on fruits colonised with
Candida
sp. and
Saccharomyces cerevisiae
.
