Metabolic Rate of Early vestigial and wild-type Prepupse of Drosophila melanogaster in Relation to Genotype, Sex, and Size
Article first published online: 21 AUG 2009
1939 The Zoological Society of London
Proceedings of the Zoological Society of London
Volume A108, Issue 4, pages 525–538, February 1939
How to Cite
Ellenby, C. (1939), Metabolic Rate of Early vestigial and wild-type Prepupse of Drosophila melanogaster in Relation to Genotype, Sex, and Size. Proceedings of the Zoological Society of London, A108: 525–538. doi: 10.1111/j.1096-3642.1939.tb00040.x
- Issue published online: 6 JUL 2010
- Article first published online: 21 AUG 2009
- May 21, 1938: Read November 15, 1938.
- 1Using a manometric method, the oxygen consumption of early D. melano-gaster prepupae was studied.
- 2It was found that males respired faster per unit wet weight than females, that wild-type respired faster than vestigial, and that the heterozygote did not differ from the wild-type.
- 3It was then noticed that the prepupae in the different groups differed in size, owing to differences in population density in the culture bottles. On modifying the culture conditions so that the prepupae were of the same size, the differences in respiration between the sexes and between vestigial and wild-type disappeared.
- 4It is concluded that, in early prepupae, (a) significant differences in respiratory rate between the sexes, and between the genotypes employed, are absent; (6) that body-size has considerable influence on the respiratory rate, large animals consuming less oxygen, per mg. wet weight, than animals of smaller size. The importance of controlling the size factor in work of this type is emphasized.