IngentaConnect Chemical Composition of Corn Leaf Essential Oils and Their Role i...

Authors: M. A. Konstantopoulou¹; F. D. Krokos²; B. E. Mazomenos²

Source: Journal of Chemical Ecology, Volume 30, Number 11, November 2004 , pp. 2243-2256(14)

Publisher: Springer

Abstract:

The chemical composition of the volatile oils collected by steam distillation from leaves of seven corn hybrids and their effect on the oviposition behavior of Sesamia nonagrioides females wasstudied. Samples of the volatile oils from each of the hybrids were analyzed by capillary gas chromatography-mass spectrometry (GC-MS) and several major compounds were identified. The major compound found in all seven hybrids was 3,7,11,15-tetramethyl-2-hexadecen-1-ol (phytol), ranging from 38.3 to 64.9% of the total quantity. Compounds detected in significant proportions include (Z)-3-hexenol (3.1 to 8%), nonanal (4.9 to 14.5%), pentadecanal (1.8 to 5.8%), neophytadiene (5.5 to 12.9%), (Z)-3-hexenyl acetate (2.5 to 8.9%), and an analogue of 2,4-dihydroxy-7-methoxy-(2H)-1,4-benzoxazin-3-(4H)-one (DIMBOA) (2.4 to 9.3%). The analysis showed no qualitative differences among the chemicals identified while quantitative differences were detected. Among the volatile oils, the significant difference was in the quantity of aldehydes present. In two-choice bioassays, filter paper sticks treated with volatile oils containing higher quantity of aldehydes received fewer eggs than those with lower aldehyde quantity. Bioassays with synthetic aldehydes of a chain length C9–C14 confirmed the above results.

Keywords: Sesamia nonagrioides; corn hybrids; oviposition behavior; principal component; leaf volatile oils; aldehydes

Document Type: Research article

DOI: 10.1023/B:JOEC.0000048786.12136.40

Affiliations: 1: Chemical Ecology and Natural Products Laboratory, Institute of Biology N.C.S.R. “Demokritos,” P.O. Box 60228, GR-153 10, Aghia Paraskevi Attikis Greece;, Email: mkonstan@bio.demokritos.gr 2: Chemical Ecology and Natural Products Laboratory, Institute of Biology N.C.S.R. “Demokritos,” P.O. Box 60228, GR-153 10, Aghia Paraskevi Attikis Greece

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Chemical Composition of Corn Leaf Essential Oils and Their Role in the Oviposition Behavior of Sesamia nonagrioides Females