Send to

Choose Destination
See comment in PubMed Commons below
J Chem Ecol. 2008 May;34(5):584-90. doi: 10.1007/s10886-008-9457-8. Epub 2008 Apr 10.

Developmental and geographical variation in the chemical defense of the walkingstick insect Anisomorpha buprestoides.

Author information

  • 1Department of Biochemistry & Molecular Biology, University of Florida, PO Box 100245, Gainesville, FL 32610-0245, USA,


Anisomorpha buprestoides, a walkingstick common in the southeastern United States, sprays chemicals that irritate and repel threatening insects, birds, or mammals. The active chemical in this substance was initially identified as a monoterpene dialdehyde. This compound can be present in several stereoisomeric forms, and subsequent studies have revealed that A. buprestoides produces at least three diastereomers: anisomorphal, dolichodial, and peruphasmal. However, no inquiry has been made to date into the geographical or developmental dependence of this variation. We report here that different populations of adult A. buprestoides spray either anisomorphal, or peruphasmal, or a mixture of the two stereoisomers. Additionally, offspring of a peruphasmal-producing population produced a variable mixture of anisomorphal and dolichodial but switched to peruphasmal upon reaching sexual maturity. This appears to be the first report of a developmentally regulated change in walkingstick insect chemical defense. Our results suggest a more complex role of these substances in the overall chemical ecology of walkingstick insects.

[PubMed - indexed for MEDLINE]

LinkOut - more resources

Full Text Sources

Other Literature Sources

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Springer
    Loading ...
    Support Center