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Studies on the responses of the female Aedes mosquito. IX.—The mode of attractiveness of lysine and other amino-acids

Published online by Cambridge University Press:  10 July 2009

E. Y. Lipsitz  and
A. W. A. Brown
E. Y. Lipsitz
Affiliation:
Department of Zoology, University of Western Ontario, London, Ontario.
A. W. A. Brown
Affiliation:
Department of Zoology, University of Western Ontario, London, Ontario.
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Extract

Of 26 amino-acids tested against a solvent control for their attractiveness to females of Aedes aegypti (L.), lysine was the most attractive and six others (threonine, 1-methylhistidine, arginine, tyrosine, glutamine and alanine) were significantly attractive; nine amino-acids were significantly repellent. Lysine converted to the monopicrate, then to the dihydrochloride and then back to the free base was attractive. The degree of attractiveness of lysine was in direct proportion to the amount of uncombined CO2 it inevitably adsorbs. It is also proportional to the amount of carbamino CO2 combined in the molecule. Some commercial samples of lysine contain repellent principles removable by distillation. It is concluded that the attractiveness of lysine to A. aegypti is due to its ability to act as a vehicle for CO2, both adsorbed and in carbamino combination.

Type
Research Paper
Information
Bulletin of Entomological Research , Volume 54 , Issue 4 , January 1964 , pp. 675 - 687
Copyright
Copyright © Cambridge University Press 1964

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