PMID: 11607576Aug 29, 1995Paper

De novo biosynthesis of the aggregation pheromone components ipsenol and ipsdienol by the pine bark beetles Ips paraconfusus Lanier and Ips pini (Say) (Coleoptera: Scolytidae)

Proceedings of the National Academy of Sciences of the United States of America
Steven J SeyboldG J Blomquist

Abstract

The California five-spined ips, Ips paraconfusus Lanier, produces the myrcene-derived acyclic monoterpene alcohols ipsenol (2-methyl-6-methylene-7-octen-4-ol) and ipsdienol (2-methyl-6-methylene-2,7-octadien-4-ol) as components of its aggregation pheromone. The pine engraver beetle, Ips pini (Say), produces only ipsdienol. Previous studies have shown that myrcene, a monoterpene in the pines colonized by these beetles, is a direct precursor to these pheromone components. In vivo radiolabeling studies reported here showed that male I. paraconfusus incorporated [1-14C]acetate into ipsenol, ipsdienol, and amitinol (trans-2-methyl-6-methylene-3,7-octadien-2-ol), while male I. pini incorporated [1-14C]acetate into ipsdienol and amitinol. Females of these species produced neither labeled nor unlabeled pheromone components. The purified radiolabeled monoterpene alcohols from-males were identified by comparison of their HPLC and GC retention times with those of unlabeled standards. HPLC-purified fractions containing the individual radiolabeled components were analyzed by GC-MS and were shown to include only the pure alcohols. To further confirm that ipsdienol and ipsenol were radiolabeled, diastereomeric ester derivatives of the isolate...Continue Reading

Citations

Mar 12, 2009·Die Naturwissenschaften·Anna B GilgGary J Blomquist
Aug 11, 2006·Genetica·Patrik NosilGerhard Gries
Jun 2, 2006·Journal of Chemical Ecology·Michael J DomingueStephen A Teale
Nov 27, 2008·Journal of Chemical Ecology·Pamela SandstromClaus Tittiger
May 2, 2009·Journal of Chemical Ecology·Qing-He ZhangJiang-Hua Sun
Jun 26, 2009·Journal of Chemical Ecology·Jeremy C BearfieldMatthew D Ginzel
Jul 25, 2003·Insect Biochemistry and Molecular Biology·Lana S BarkawiSteven J Seybold
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May 5, 2001·Annual Review of Plant Physiology and Plant Molecular Biology·Susan Trapp, Rodney Croteau
Dec 4, 2002·Annual Review of Entomology·Steven J Seybold, Claus Tittiger
Jun 29, 2005·Proceedings of the National Academy of Sciences of the United States of America·Anna B GilgGary J Blomquist
Jun 17, 2010·Environmental Entomology·Brian H AukemaKenneth F Raffa
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Mar 21, 2018·Proceedings of the National Academy of Sciences of the United States of America·Christine C ChiuJoerg Bohlmann
Dec 29, 2020·Current Opinion in Insect Science·Gary J BlomquistChristopher I Keeling

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