VARIATION IN THE RADIO-SENSITIVITY OF THE EGGS OF MISGURNUS FOSSILIS L. OBSERVED IN THE COURSE OF THE FIRST EMBRYONIC MITOSES (in Russian)
Experiments showed that the radiosensitivity of Misgurnus fossilis L. eggs during early embryonic mitosis (determined by the percentage of chromosome changes. the amount of perished eggs, and the number of deformed progeny spawned) ehanges regularly with the mitotic phase cycle. The highest radiosensitivity was observed during the anaphase with the first appearance of cleavage in the developing eggs. The radiosensitivity is also high during the prophase period and results in increased ehromosome alterations and an increased number of deformed progenies. The interphase cells are less radiosensitive. It was found that during the radiosensitive period, even 50 r can destroy up to 30% of the eggs and induce a great number of deformaties. The data illustrate the relation between the survival of embryo and morphological injuries and the radiation effects on the cell structure. (R.V.J.)
- Research Organization:
- Inst. of Biological Physics, Academy of Sciences, U.S.S.R.
- NSA Number:
- NSA-13-012382
- OSTI ID:
- 4267675
- Journal Information:
- Doklady Akad. Nauk S.S.S.R., Journal Name: Doklady Akad. Nauk S.S.S.R. Vol. Vol: 125
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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