ISSN:
1573-1561
Schlagwort(e):
Euphydryas anicia
;
Lepidoptera
;
Nymphalidae
;
Castilleja integra
;
Besseya plantaginea
;
Besseya alpina
;
iridoid glycosides
;
catalpol
;
macfadienoside
;
sequestration
;
plant-insect interactions
;
herbivory
;
ecological chemistry
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
,
Chemie und Pharmazie
Notizen:
Abstract Iridoid glycosides were found to be sequestered by natural populations ofEuphydryas anicia after ingestion from the host plantsBesseya alpina, B. plantaginea, andCastilleja integra. Both major iridoids ofB. alpina, cataipol and aucubin, were found in butterfly populations where this was the only host plant. The catalpol-aucubin ratio was higher in the butterflies than in the host plant. AnE. anicia population which uses bothB. plantaginea andC. integra as host plants was found to sequester cataipol as well as another iridoid, macfadienoside. Macfadienoside was the major iridoid ofC. integra, while catalpol esters were the major iridoids ofB. plantaginea. Although it was a major sequestered iridoid, catalpol was a minor constituent in both host plants. The macfadienoside-catalpol ratio in the butterflies from this population was highly variable, and there appeared to be both sex and individual variation in host plant and/or iridoid glucoside utilization byE. anicia. Although other iridoids were present in the host plants, none was sequestered in more than trace amounts.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01012364
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