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The respiratory metabolism of tsetse fly puparia in relation to fat consumption

Published online by Cambridge University Press:  10 July 2009

P. A. Langley
P. A. Langley
Affiliation:
Seibersdorf Laboratory, International Atomic Energy Agency, Vienna, Austria
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Extract

Puparia of Glossina austeni Newst. and G. morsitans Westw. contain similar quantities of chloroform-soluble substances (referred to as fat) in relation to their nonfatty dry weight at the beginning of puparial life. However, adult G. austeni emerge from their puparia with significantly larger fat reserves than G. morsitans after development at 25°C. This obvious difference in the rate of fat consumption by puparia of the two species is not accompanied by differences in the rate of oxygen consumption, neither do respiratory quotients explain the difference. It is therefore concluded that some substrate other than fat may be used as a supplementary energy source in G. austeni, since there appears to be no species difference in the composition of fat. Thus the calculation of an oxygen equivalence of fat for tsetse flies is invalid for different species and may also vary within a species depending upon the temperature at which development proceeds.

Type
Research Article
Information
Bulletin of Entomological Research , Volume 60 , Issue 3 , February 1971 , pp. 351 - 358
Copyright
Copyright © Cambridge University Press 1971

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