
TY  - JOUR
A1  - Grigg, GW 
T1  - Radiation-Induced Reversion of Transition Mutants
JF  - Australian Journal of Biological Sciences
JO  - Aust. Jnl. Of Bio. Sci.
Y1  - 1964
VL  - 17
IS  - 4
SP  - 907
EP  - 920
KW  - 
UR  - https://doi.org/10.1071/BI9640907 
N2  - X-irradiation increased the reversion frequency of two transition mutants of Escherichia coli, one of which (meth-) differed genetically from wild type by an adenine-thymine substitution of a guanine-cytosine base pair, the other (urg-2-) by a guanine-cytosine substitution of an adenine-thymine base pair. The lethal effects of the radiation were greatest when protein synthesis was prevented for a period immediately after irradiation. A period of 30 min at 37°0 was as effective as 22 hr. Irradiation of a saline suspension gave a lower survival of 0·2 times that of bacteria irradiated after being spread on minimal agar plates. 
ER  -

