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J Chem Ecol

Title:		6-Methoxy-2-benzoxazolinone: A semiochemical for host location by western corn rootworm larvae
Author(s):		Bjostad LB; Hibbard BE;
Address:		"Department of Entomology, Colorado State University, 80523, Fort Collins, Colorado"
Journal Title:		J Chem Ecol
Year:		1992
Volume:		18
Issue:		7
Page Number:		931 - 944
DOI:		10.1007/BF00980054
ISSN/ISBN:		0098-0331 (Print) 0098-0331 (Linking)
Abstract:		"A bioassay-driven sequential fractionation scheme was used to isolate all portions of a crude dichloromethane corn seedling extract behaviorally active to larvae of the western corn rootworm,Diabrotica virgifera virgifera LeConte. 6-Methoxy-2-benzoxazolinone (MBOA) was identified as one of the most important components of an attractive crude corn extract. MBOA was found on or in the intact root tissues by injecting an extract of undamaged roots onto an HPLC immediately after extraction. MBOA was demonstrated to be volatile and functions as a semiochemical in conjunction with carbon dioxide in host location by western corn rootworm larvae, which are oligophagous on the roots of maize and several other species of grasses. Because MBOA occurs almost exclusively in maize and other grasses, it offers a simple way for the larvae to distinguish possible hosts from non-hosts. MBOA has previously been reported as a chemical defense against other insect species. This is the first report in grasses of a secondary compound that is toxic or a deterrent to nonadapted insect herbivores but that is used as a semiochemical in host location by a specialist insect species"
Keywords:
Notes:		"PubMed-not-MEDLINEBjostad, L B Hibbard, B E eng 1992/07/01 J Chem Ecol. 1992 Jul; 18(7):931-44. doi: 10.1007/BF00980054"