The dietary effects of 20-hydroxyecdysone on the development of housefly |
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Authors: | Pritam Singh Graeme B. Russell |
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Affiliation: | 1. Entomology Division, DSIR, Mt Albert, Auckland, New Zealand;2. Applied Biochemistry Division, DSIR, Palmerston North, New Zealand |
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Abstract: | The ingestion of 20-hydroxyecdysone adversely affected the growth and development of housefly larvae (Musca domestica) reared axenically on two synthetic diets. In a casein diet, this hormone was toxic causing 84% mortality at a concentration of 100 ppm. In an amino acid diet, the mortality was 65% at 100 ppm but the rate of larval development was greater than the controls and some puparia showing prothetely were produced for all concentrations tested. The different effects can be explained in terms of differences in the absorption and/or catabolism of 20-hydroxyecdysone in the two diets. |
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