English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/20346
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Comparative sex pherome biosynthesis in Thaumetopoea pityocampa and T. processionea: a rationale for the phenotypic variation in the sex pherome within the genus Thaumetopoea

AuthorsVillorbina, Gemma; Rodríguez Ropero, Sergio; Camps Díez, Francisco ; Fabriàs, Gemma
KeywordsAlkynes
Biosynthesis
Dienes
Enynes
Fatty acids
Sex pheromones
Issue Date11-Jan-2003
PublisherElsevier
CitationInsect Biochemistry and Molecular Biology 33(2): 155-161 (2003)
AbstractThe female sex pheromones of the Mediterranean processionary moths (Thaumetopoea sp.) are conjugated dienes or enynes of 16 carbon atoms with the unsaturations located at C11 and C13. To investigate the biochemical basis of this phenotypic variation, the biosynthetic pathway of T. processionea sex pheromone, a diene acetate, has been elucidated and compared to that reported for the enyne-producing species T. pityocampa. Mass labeling experiments showed that T. processionea sex pheromone is biosynthesized from palmitic acid, by subsequent (Z)-11 and (Z)-13 desaturations and final reduction and acetylation. The Pheromone Biosynthesis Activating Neuropeptide (PBAN) activates this biosynthetic pathway downstream of the dienoate intermediate. When either 11-hexadecynoic acid or (Z)-13-hexadecen-11-ynoic acid were administered to T. processionea, this species was able to produce the enyne sex pheromone of T. pityocampa upon PBAN stimulation. In contrast, T. pityocampa does not produce either 11-hexadecynyl acetate or (Z,Z)-11,13-hexadecadienyl acetate, despite having the corresponding precursors in the pheromone gland. However, both acetates are detected after administration of the corresponding alcohols. These overall results suggest that the absence of Δ11 acetylenase and the existence of an enynoate specific reductase in the diene and enyne-producing Thaumetopeae, respectively, account for the different sex pheromones produced by the two groups.
Description7 pages, 5 figures.-- PMID: 12535674 [PubMed].-- Printed version published Feb 2003.
Publisher version (URL)http://dx.doi.org/10.1016/S0965-1748(02)00186-8
URIhttp://hdl.handle.net/10261/20346
DOI10.1016/S0965-1748(02)00186-8
ISSN0965-1748
E-ISSN1879-0240
Appears in Collections:(IQAC) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.