ISSN:
1573-1561
Keywords:
Leptinotarsa decemlineata
;
Colorado potato Beetle
;
Teucrium
;
Clerodane diterpenes
;
feeding behavior
;
antifeedants
;
toxins
;
feeding deterrents
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract Treatment of potato leaf disks with fourneo-clerodane diterpenes fromTeucrium (eriocephalin, teucrin-A, teucvin, and teuscorolide) significantly reduced feeding by larvae ofLeptinotarsa decemlineata (Colorado potato beetle). Choice and no-choice tests suggest that teuscorolide acts as a feeding deterrent, whereas the antifeedant activity of teucrin-A, teucvin, and eriocephalin is likely associated with a toxic mode of action. Nutritional tests, antifeedant simulation assays, and posttreatment studies confirmed that teucrin-A can be categorized by its mode of action as a toxin, rather than as a feeding deterrent.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02027569
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