berry related yeast volatiles modify behaviour of flies.

Journal: Journal of advanced research
Published Date: Aug 5, 2019

Abstract

Olfactory cues have a large impact on insect behaviour and fitness consequently showing potential in pest management. Yeast released volatiles are used by insects as olfactory cues for finding feeding and oviposition sites. The yeast strain SB-16-15 was isolated from spontaneous fermentation of berries and identified as . Thirty-nine volatiles were sampled from the headspace of yeasts by solid phase micro extraction and identified by gas chromatography and mass spectrometry techniques. Ten of those volatiles elicited antennal responses of flies, one of the most serious pest of berries. In the two-choice experiments, flies preferred the mixture composed of nine synthetic compounds analogous to electroanntenographic active volatiles released by the yeasts compare to the solvent control. Female flies were significantly attracted to the mixture at the concentration 0.1 µL mL and showed no preference to the mixture at the concentration 1 µL mL versus control while males reacted positively to the synthetic blend at the concentration 1 µL mL. Herein, for the first time, behaviour modifying effect of berry related yeast volatiles was shown suggesting these semiochemicals have potential in use for monitoring flies.

Authors

  • Raimondas Mozūraitis
    Laboratory of Chemical and Behavioural Ecology, Institute of Ecology, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania.
  • Dominykas Aleknavičius
    Laboratory of Chemical and Behavioural Ecology, Institute of Ecology, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania.
  • Iglė Vepštaitė-Monstavičė
    Laboratory of Genetics, Institute of Botany, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania.
  • Ramunė Stanevičienė
    Laboratory of Genetics, Institute of Botany, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania.
  • Seyedeh Noushin Emami
    Department of Molecular Biosciences, Wenner-Gren Institute, Stockholm University, Svante Arrhenius väg 20C, SE 106 91 Stockholm, Sweden.
  • Violeta Apšegaitė
    Laboratory of Chemical and Behavioural Ecology, Institute of Ecology, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania.
  • Sandra Radžiutė
    Laboratory of Chemical and Behavioural Ecology, Institute of Ecology, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania.
  • Laima Blažytė-Čereškienė
    Laboratory of Chemical and Behavioural Ecology, Institute of Ecology, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania.
  • Elena Servienė
    Laboratory of Genetics, Institute of Botany, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania.
  • Vincas Būda
    Laboratory of Chemical and Behavioural Ecology, Institute of Ecology, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania.

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