The compounds used in behaviour tests namely 3-methylbut-1-yl propionate (≥99% chemical purity), 3-methylbutan-1-ol (≥99% chemical purity), ethyl octanoate (≥99% chemical purity), 2-phenylethyl acetate (≥99% chemical purity) and 2-phenyl ethanol (≥99% chemical purity) were purchased from Sigma-Aldrich (St. Louis, MO, USA); ethyl propionate (99% chemical purity), 3-methylbut-1-yl acetate (99% chemical purity), ethyl hexanoate (99% chemical purity) were purchased from Alfa Aesar (Ward Hill, MA, USA); ethyl acetate (≥99% chemical purity), hexane as a solvent (≥99% chemical purity) was obtained from Carl Roth (Karsruhe, Germany).
D (+)-Glucose monohydrate (obtained from Merck Millipore, Darmstadt, Germany), yeast extract, peptone and agar (purchased from Liofilchem, Rosetodegli Abruzzi, Italy) were used for YPD-agar medium preparation and yeast cultivation. To avoid bacterial contamination, YPD medium was supplemented with chloramphenicol (purchased from Applichem, Darmstadt, Germany).
D (+)-Glucose monohydrate (obtained from Merck Millipore, Darmstadt, Germany), yeast extract, peptone and agar (purchased from Liofilchem, Rosetodegli Abruzzi, Italy) were used for YPD-agar medium preparation and yeast cultivation. To avoid bacterial contamination, YPD medium was supplemented with chloramphenicol (purchased from Applichem, Darmstadt, Germany).