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J Chem Ecol

Title:		"3,7-Dimethylpentadecane: a Novel Sex Pheromone Component from Leucoptera sinuella (Lepidoptera: Lyonetiidae)"
Author(s):		Barros-Parada W; Bergmann J; Curkovic T; Espinosa C; Fuentes-Contreras E; Guajardo J; Herrera H; Morales S; Queiroz AFO; Vidal A;
Address:		"Escuela de Agronomia, Facultad de Ciencias Agronomicas y de los Alimentos, Pontificia Universidad Catolica de Valparaiso, Quillota, Chile. Instituto de Quimica, Facultad de Ciencias, Pontificia Universidad Catolica de Valparaiso, Valparaiso, Chile. jan.bergmann@pucv.cl. Facultad de Ciencias Agronomicas, Universidad de Chile, Santiago, Chile. Centro Tecnologico del Alamo (Poplar Technology Center), Universidad de Talca, Talca, Chile. Centre for Molecular and Functional Ecology in Agroecosystems, Facultad de Ciencias Agrarias, Universidad de Talca, Talca, Chile. Instituto de Quimica, Facultad de Ciencias, Pontificia Universidad Catolica de Valparaiso, Valparaiso, Chile. Nucleo de Quimica y Bioquimica, Facultad de Estudios Interdisciplinarios, Universidad Mayor, Santiago, Chile. Instituto de Quimica e Biotecnologia, Universidade Federal de Alagoas, Maceio, Brazil"
Journal Title:		J Chem Ecol
Year:		2020
Volume:		20200808
Issue:		9
Page Number:		820 - 829
DOI:		10.1007/s10886-020-01208-z
ISSN/ISBN:		1573-1561 (Electronic) 0098-0331 (Linking)
Abstract:		"Leucoptera sinuella is a leaf-miner moth present in several regions in the world, which has been recently introduced into Chile. The larvae feed exclusively on the leaves of poplar and willow trees, and the damage caused by the feeding behavior poses a threat to the wood-producing industry. Besides, L. sinuella larvae invade nearby orchards for pupation, causing rejections in Chilean fresh fruit for export. Here we report the identification of the female-produced sex pheromone of L. sinuella as a first step towards the development of pheromone-based methods for pest management of this species. First, we analyzed hexane extracts of the abdominal glands of virgin females by gas chromatography coupled with mass spectrometry and identified the major compound in these extracts to be 3,7-dimethylpentadecane, while minor compounds in the extracts proved to be 3,7-dimethyltetradecane and 7-methylpentadecane. Structure assignments were carried out by comparison of retention times and mass spectra of the natural products with those of authentic reference samples. Second, we conducted field tests, which showed that traps baited with synthetic 3,7-dimethylpentadecane were significantly attractive to males in a dose-dependent response. Our results also showed that a mixture of 3,7-dimethylpentadecane, 3,7-dimethyltetradecane, and 7-methylpentadecane in proportions similar to those found in gland extracts was the most attractive lure"
Keywords:		Animals Female Lepidoptera/*physiology Plant Leaves/parasitology Populus/*parasitology Salix/*parasitology Sex Attractants/*chemistry Branched hydrocarbon Invasive species Leaf-miner Poplar Type III pheromone;
Notes:		"MedlineBarros-Parada, Wilson Bergmann, Jan Curkovic, Tomislav Espinosa, Cristian Fuentes-Contreras, Eduardo Guajardo, Jorge Herrera, Heidy Morales, Sebastian Queiroz, Abel F O Vidal, Alvaro eng EQM130154/Fondo de Equipamiento Cientifico y Tecnologico/ 039.399/2017/Vicerrectoria de Investigacion y Estudios Avanzados PUCV/ 039.498/2018/Vicerrectoria de Investigacion y Estudios Avanzados/ IDI 40008896-0/Fondo de Innovacion para la Competitividad de la Region de O Higgins/ 2020/08/10 J Chem Ecol. 2020 Sep; 46(9):820-829. doi: 10.1007/s10886-020-01208-z. Epub 2020 Aug 8"