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Production of pheromone by hairpencil glands of males obtained from interspecific hybridization betweenHeliothis virescens andH. subflexa (Lepidoptera: Noctuidae) (1995)

Teal, Peter E. A. ; Oostendorp, Andrea

Springer

Journal of chemical ecology 21 (1995), S. 59-67

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ISSN: 1573-1561

Keywords: Hairpencils ; sex pheromone ; Heliothis ; autosomes ; sex chromosomes

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Chemistry and Pharmacology

Notes: Abstract Pheromone produced by the hairpencil glands of interspecific hybrid- and backcross-generation males from crosses betweenHeliothis virescens (F.) withH. subflexa (Gn.) was studied. Males of reciprocal F1 hybrids, all of which had hairpencil glands morphologically similar to those ofH. virescens, produced neither the same pheromone blend nor amounts of pheromone that were produced by males ofH. virescens. Instead, these hybrid males produced pheromone that was quantitatively and qualitatively similar to that produced byH. subflexa. Hairpencil gland extracts from males obtained from backcrossing F1 females of either cross to males ofH. subflexa were the same as those ofH. subflexa. However, extracts from backcross males of crosses between F1 females andH. virescens were variable. Some extracts from these backcross males were like those ofH. virescens while others were either likeH. subflexa or were intermediate between those of the parent species. These results showed that the production of pheromone by the hairpencil glands of hybrid and backcross males is under the dominant regulation of autosomal genes of theH. subflexa genome.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02033662

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Characterization of oxidase(s) associated with the sex pheromone gland in Manduca sexta (L.) females (1995)

Fang, Nianbai ; Teal, Peter E. A. ; Tumlinson, James H.

New York, NY [u.a.] : Wiley-Blackwell

Archives of Insect Biochemistry and Physiology 29 (1995), S. 243-257

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ISSN: 0739-4462

Keywords: pheromone biosynthesis ; aldehydes ; alcohols ; oxidase inhibitor ; piperonyl butoxide ; Chemistry ; Food Science, Agricultural, Medicinal and Pharmaceutical Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Biology

Notes: An oxidase that converts primary aliphatic alcohols into aldehydes was discovered in the cuticle of the sex pheromone gland and in the papillae anales on the tip of the abdomen of Manduca sexta females. Oxidase activity was not found in the epidermal cells of the pheromone gland where fatty acid precursors of the pheromonal aldehydes are found. This oxidase requires oxygen and water to function and appears to have a rather broad substrate specificity. The activity of the oxidase is reduced by the application of piperonyl butoxide, which also interferes with the PBAN induced production of the natural pheromone aldehydes. However, endogenous alcohols cannot be found in the pheromone gland. Thus, it is not yet clear whether or not the oxidase is involved in the terminal step of biosynthesis of the pheromone aldehydes in M. sexta females. © Wiley-Liss, Inc.This article is a U.S. Government work and, a such, is in the public domain in the United States of America.

Additional Material: 6 Ill.