FOOD LEVEL IN RELATION TO RATE OF DEVELOPMENT AND EYE PIGMENTATION IN DROSOPHILA MELANOGASTER
| Autor: | George Wells Beadle, C. W. Clancy, Edward L. Tatum |
|---|---|
| Rok vydání: | 1938 |
| Předmět: |
Starvation
Larva Ecology Period (gene) fungi Zoology Biology biology.organism_classification Eye pigmentation Rate of development Organizational change Food level medicine sense organs medicine.symptom Drosophila melanogaster skin and connective tissue diseases General Agricultural and Biological Sciences |
| Zdroj: | The Biological Bulletin. 75:447-462 |
| ISSN: | 1939-8697 0006-3185 |
| Popis: | In the development of larvae of Drosophila melanogaster an organizational change takes place at about 70 hours after egg-laying (25° C.). This change is referred to as the "70-hour change."Larvae deprived of all food for periods at any time up to the 70-hour change are retarded in development, the retardation being a function of the length of the starvation period.Larvae deprived of food after the 70-hour change are not retarded, but are probably somewhat accelerated in development.If deprived of food during a portion of the larval developmental period after the 70-hour change, the final size attained by the fly appears to depend largely on the proportion of this period spent on full food.Periods of complete removal of food from vermilion brown larvae are without apparent effect on eye pigment production. This is true whether the starvation period be short or long and whether it comes before or after the 70-hour change.Partial starvation (at intermediate food levels) of larvae, under certain conditions, g... |
| Databáze: | OpenAIRE |
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