Dietary yeast affects preference and performance in Drosophila suzukii

Autor(en):
  • Nathalie Bellutti
    Versuchszentrum Laimburg, Laimburg 6, Pfatten, 39040 Auer, (BZ), Italy
  • Andreas Gallmetzer
    Versuchszentrum Laimburg, Laimburg 6, Pfatten, 39040 Auer, (BZ), Italy
  • Gerd Innerebner
    Versuchszentrum Laimburg, Laimburg 6, Pfatten, 39040 Auer, (BZ), Italy
  • Silvia Schmidt
    Versuchszentrum Laimburg, Laimburg 6, Pfatten, 39040 Auer, (BZ), Italy
  • Roland Zelger
    Versuchszentrum Laimburg, Laimburg 6, Pfatten, 39040 Auer, (BZ), Italy
  • Elisabeth Helene Koschier
    Universität für Bodenkultur Wien, Gregor-Mendel-Straße 33, 1180 Wien, Austria
Abstract: 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.
Schlagwörter: Spotted wing drosophila, Life history, Egg-laying behaviour, Hanseniaspora uvarum, Saccharomyces cerevisiae
Publikationjahr: 2018
Veröffentlich in: Journal of Pest Science
Ausgabe: 91
Band: 2
Publikationssprache: de
Erste Seite: 651
Letzte Seite: 660
DOI: 10.1007/s10340-017-0932-2