« Previous AbstractAn Updated Review on Prebiotics: Insights on Potentials of Food Seeds Waste as Source of Potential Prebiotics    Next AbstractUse of urine volatile organic compounds to discriminate tuberculosis patients from healthy subjects »

J Agric Food Chem

Title:		Quantitative variations in the essential oil of Minthostachys mollis (Kunth.) Griseb. in response to insects with different feeding habits
Author(s):		Banchio E; Zygadlo J; Valladares GR;
Address:		"Centro de Investigaciones Entomologicas, FCEFYN, Universidad Nacional de Cordoba, Av. Velez Sarsfield 299, (5000) Cordoba, Argentina. ebanchio@exa.unrc.edu.ar"
Journal Title:		J Agric Food Chem
Year:		2005
Volume:		53
Issue:		17
Page Number:		6903 - 6906
DOI:		10.1021/jf051157j
ISSN/ISBN:		0021-8561 (Print) 0021-8561 (Linking)
Abstract:		"Plants display a diverse array of inducible changes in secondary metabolites following insect herbivory. Herbivores differ in their feeding behavior, physiology, and mode of attachment to the leaf surface, and such variations might be reflected in the induced responses of damaged plants. Induced changes were analyzed for Minthostachys mollis, a Lamiaceae with medicinal and aromatic uses, and four species of folivore insects with different feeding habits (chewing, scraping, sap-sucking, and puncturing). In M. mollis leaves experimentally exposed to the insects, levels of the two dominant monoterpenes pulegone and menthone were assessed 24 and 48 h after wounding. Menthone content generally decreased in the essential oil of damaged leaves, whereas pulegone concentration increased in all treatments. These changes occurred also in the adjacent undamaged leaves, suggesting a systemic response. The relatively uniform response to different kinds of damage could be attributable to the presence of such a strongly active compound as pulegone in the essential oil of M. mollis. The effects of wounding on essential oil concentration may be significant from a commercial point of view"
Keywords:		"Animals Cyclohexane Monoterpenes Feeding Behavior Insecta/*physiology Lamiaceae/chemistry/*metabolism Menthol/analysis Monoterpenes/analysis Oils, Volatile/*chemistry Plant Leaves/chemistry/*metabolism;"
Notes:		"MedlineBanchio, Erika Zygadlo, Julio Valladares, Graciela R eng Research Support, Non-U.S. Gov't 2005/08/18 J Agric Food Chem. 2005 Aug 24; 53(17):6903-6. doi: 10.1021/jf051157j"