KARYOKINESIS OF SOMATIC NUCLEI OF NEUROSPORA CRASSA: I. THE CORRELATION BETWEEN CONIDIAL RADIOSENSITIVITY AND THEIR KARYOKINETIC STAGE
- 1 December 1964
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Genetics and Cytology
- Vol. 6 (4) , 383-392
- https://doi.org/10.1139/g64-049
Abstract
The radio-sensitivity of conidia of Neurospora crassa has been assessed in terms of conidial kill following irradiation with 10,000 r at different time intervals after commencement of incubation (30[degree]C) on a shaker. Samples were also removed and stained (Feulgen) for cytological observations of the karyokinetic stages under aerobic conditions. It was found that a rise in conidial radiosensitivity coinicded with the appearance of filament and ring phase as described by Weijer et al., 1963. Since strand separation occurs during late ring phase, the increase in radiosensitivity indicates that the duplication of genetic material involves the filament and early ring phases.Keywords
This publication has 2 references indexed in Scilit:
- Differential Sensitivity of Cells to X-RaysAmerican Journal of Botany, 1941
- DIFFERENTIAL SENSITIVITY OF CELLS TO X‐RAYSAmerican Journal of Botany, 1941