Document Detail


Defensive chemicals of two species of Trachypachus Motschulski.
MedLine Citation:
PMID:  15139309     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Analyses of pygidial gland contents of two species of a previously uninvestigated family of beetles (Trachypachidae) by Gas Chromatography-Mass Spectrometry (GC-MS) revealed that their chemistry is similar to that reported from many members of the family Carabidae. Nevertheless, the composition of defensive gland fluids of the two species Trachypachus slevini and T. gibbsii differs sufficiently to distinguish between the two species solely on the basis of their defensive chemistry. The major components of T. slevini glandular fluid are methacrylic, tiglic, and octanoic (= caprylic) acids, together with the hydrocarbon (Z)-9-pentacosene. In contrast, the glandular contents of T. gibbsii contain a rather unique mixture of polar and nonpolar compounds, the principal constituents of which are methacrylic and ethacrylic acids (= 2-ethylacrylic acid), together with 2-phenylethanol, 2-phenylethyl methacrylate, 2-phenylethyl ethacrylate, and (Z)-9-pentacosene.
Authors:
Athula B Attygalle; Xiaogang Wu; Josef Ruzicka; Sheetal Rao; Silvina Garcia; Kithsiri Herath; Jerrold Meinwald; David R Maddison; Kipling W Will
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of chemical ecology     Volume:  30     ISSN:  0098-0331     ISO Abbreviation:  J. Chem. Ecol.     Publication Date:  2004 Mar 
Date Detail:
Created Date:  2004-05-13     Completed Date:  2004-07-12     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  7505563     Medline TA:  J Chem Ecol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  577-88     Citation Subset:  IM    
Affiliation:
Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA. aattygal@stevens.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Beetles / physiology*
Crotonic Acids / analysis
Exocrine Glands / chemistry*,  physiology*
Gas Chromatography-Mass Spectrometry
Hydrocarbons / analysis
Methacrylates / analysis
Molecular Weight
Octanoic Acids / analysis
Reference Standards
Species Specificity
Volatilization
Grant Support
ID/Acronym/Agency:
R01 GM53830-30/GM/NIGMS NIH HHS
Chemical
Reg. No./Substance:
0/Crotonic Acids; 0/Hydrocarbons; 0/Methacrylates; 0/Octanoic Acids; 124-07-2/caprylic acid; 13201-46-2/tiglic acid; 79-41-4/methacrylic acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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