MUTAGENIC RESPONSE DURING SPORULATION OF BACILLUS CEREUS
Populations of Bacillus cereus undergoing sporulation in distilled water exhibit a period of constant sensitivity to the lethal and mutagenic effects of radiation during the first half of the process. This is followed by a sensitive period, due to some process or processes occurring during sporogenesis, and not the loss of protective material, such as RNA. Subsequent to this the developing spore becomes refractory to the dose rautagenic for vegetative cells before developing heat resistance. The length of the delay in maximal expression of induced mutants was the same for mutants screened from spores of irradiated vegetative cells and mutants resulting from irradiated vegetative cells not permitted to sporulate. The effects were similar with ultraviolet and x- irradiation. (auth)
- Research Organization:
- Univ. of Texas, Austin
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-13-020854
- OSTI ID:
- 4235926
- Journal Information:
- Radiation Research, Journal Name: Radiation Research Vol. Vol: 11
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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