ISSN:
1573-1561
Keywords:
Leichhardt's grasshopper
;
Petasida ephippigera
;
Pityrodia jamesii
;
Pityrodia ternifolia
;
Pityrodia pungens
;
hydroxycineole
;
dihydrochalcone
;
chalcone
;
sesquiterpene glycoside
;
aposematic
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract Investigation of the strikingly aposematic Leichhardt's grasshopper revealed a number of host-plant-derived components. Chemical study of the three known host plants revealed a diverse array of components. Pityrodia ternifolia and P. pungens contain predominantly sesquiterpenes and sesquiterpene glycosides and P. jamesii is rich in cineole, dihydrochalcones, chalcones, and monoterpene glycosides. Feces from grasshoppers feeding on P. jamesii contain a mixture of hydroxycineoles, of which 3α-hydroxycineole is the predominant isomer (68%). No evidence for previously suspected "alkaloidal" toxins was found in either the insect or host plant.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1005518625764
