COMPARATIVE RADIOSENSITIVITY OF MED FLYS AND EMBRYOS
The research dealt with the effect of 60-Co gamma radiation on cultured cells in vitro and on embryos at different developmental stages, of Ceratitis capitata Wiedemann. The parameters chosen for both the cells and the embryos were growth, survival and mortality. The immediate and late effects of irradiation were also put into evidence on the egg hatching, the larval life cycle, the emergence of adults and their fertility. A particular result that became evident in the comparison of the radiosensitivity was that the cells in vitro had a greater radioresistance than the very young embryos by a factor of 3. In general, with an increase in dose there was an increase in damage; even at 1200 rad a prolonged arrest was found in the growth of the cell population, and with 2400 rad it was found in the development of embryos 24 hours old. Confronting embryos of different ages, it was noted that the same quantitative effect was obtained with doses proportional to the age of the embryos; thus, e.g., one observed the same mortality effect in embryos 30 minutes old irradiated with 300 rad as in those 24 h old treated with 4800 rad. The results obtained are presented and discussed.
Bibliographic Reference: INTERNAZIONAL ENTOMOLOGY CONGRESS, HAMBURG, (GERMANY), AUG. 20-26, 1984 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31426 ORA
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Record Number: 1989122071000 / Last updated on: 1987-01-01
Available languages: en