Enantiospecific effect of limonene and limonene-derived bicyclic lactones on settling and probing behaviour of the peach potato aphid Myzus persicae (Sulz.)
2003
Halarewicz-Pacan, A. (Wroclaw University of Agriculture (Poland). Dept. of Botany and Plant Physiology) | Gabrys, B. ([email protected]) | Dancewicz, K. (Zielona Gora University (Poland). Inst. of Biotechnology and Environmental Sciences) | Wawrzenczyk, Cz. (Wroclaw University of Agriculture (Poland). Dept. of Chemistry)
The deterrent effect of limonene enentiomers and limonene derivative: (+)-(1S,4S,6S)-4-(1-methylethenyl)-9-oxabicyclo[4.3.0]nonan-8-one, on Myzus persicae was investigated. Only S-enantiomers of limonene and its derivative showed feeding deterrent properties. S-limonene inhibited phloem sap ingestion and reduced the number of phloem sap ingestion phases during aphid stylet penetration of plant tissues. Aphids spent twice less time on leaves painted with (+)-1S,4S,6S-4-(1-methylethenyl)-9-oxabicyclo[4.3.0]nonan-8-one than on control and S-limonene-treated leaves and the probes were shorter than 2 minutes on these leaves. Our studies confirmed that the chiral centre configuration of the lactones was important in expression of feeding deterrent activity
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