Three different patterns of postirradiation DNA degradation were found in germinating spores. First, when Bacillus subtilis is irradiated as spores, there is little or no degradation. Second, when B. subtilis is allowed to germinate for a period of time less than 40-50 min prior to irradiation, there is degradation, but with a lag. Third, when B. subtilis is allowed to germinate for a period of time greater than 40-50 min prior to irradiation, there is immediate breakdown of DNA similar to the type found in vegetative cells. The modified pattern of DNA degradation seen in germinating spores is another argument for the hypothesis that the DNA in bacterial spores is in a different physical state from that found in vegetative cells.
Skip Nav Destination
Research Article| November 01 1972
Ionizing Radiation-Initiated Degradation of DNA in Germinating Spores
Radiat Res (1972) 52 (2): 409–418.
- Views Icon Views
- Share Icon Share
- Search Site
W. Howard Cyr, Ernest C. Pollard; Ionizing Radiation-Initiated Degradation of DNA in Germinating Spores. Radiat Res 1 November 1972; 52 (2): 409–418. doi: https://doi.org/10.2307/3573577
Download citation file:
Citing articles via
Commonalities Between COVID-19 and Radiation Injury
Carmen I. Rios, David R. Cassatt, Brynn A. Hollingsworth, Merriline M. Satyamitra, Yeabsera S. Tadesse, Lanyn P. Taliaferro, Thomas A. Winters, Andrea L. DiCarlo
Low-Dose Radiation Therapy (LDRT) for COVID-19: Benefits or Risks?
Pataje G. Prasanna, Gayle E. Woloschak, Andrea L. DiCarlo, Jeffrey C. Buchsbaum, Dörthe Schaue, Arnab Chakravarti, Francis A. Cucinotta, Silvia C. Formenti, Chandan Guha, Dale J. Hu, Mohammad K. Khan, David G. Kirsch, Sunil Krishnan, Wolfgang W. Leitner, Brian Marples, William McBride, Minesh P. Mehta, Shahin Rafii, Elad Sharon, Julie M. Sullivan, Ralph R. Weichselbaum, Mansoor M. Ahmed, Bhadrasain Vikram, C. Norman Coleman, Kathryn D. Held
Germicidal Efficacy and Mammalian Skin Safety of 222-nm UV Light
Manuela Buonanno, Brian Ponnaiya, David Welch, Milda Stanislauskas, Gerhard Randers-Pehrson, Lubomir Smilenov, Franklin D. Lowy, David M. Owens, David J. Brenner