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9-Acridone insect antifeedant alkaloids from Teclea trichocarpa bark

Published online by Cambridge University Press:  19 September 2011

W. Lwande ,
T. Gebreyesus ,
A. Chapya ,
C Macfoy ,
A. Hassanali  and
M. Okech
W. Lwande
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30772, Nairobi, Kenya
T. Gebreyesus
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30772, Nairobi, Kenya
A. Chapya
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30772, Nairobi, Kenya
C Macfoy
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30772, Nairobi, Kenya
A. Hassanali
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30772, Nairobi, Kenya
M. Okech
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30772, Nairobi, Kenya
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Abstract

Three 9-acridone alkaloids, melicopicine, tecleanthine and 6-methoxy tecleanthine were isolated from the bark of Teclea trichocarpa. Melicopicine and tecleanthine exhibited mild antifeedant activity against the African armyworm, Spodoptera exempta. All the three alkaloids showed antimicrobial activity against the fungus, Cladosporium cucumerinum and the bacterium, Bacillus subtilis.

Keywords

Teclea trichocarpaRutaceaemelicopicinetecleanthine6-methoxy tecleanthine9-acridone alkaloidsantifeedantantifungalantibacterial
Type
Research Article
Information
International Journal of Tropical Insect Science , Volume 4 , Issue 4 , December 1983 , pp. 393 - 395
Copyright
Copyright © ICIPE 1983

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References

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