DNA damage in S. typhimurium LT-2 by freeze-thawing was studied using 3Hthymidine-labelled bacteria. Quickly frozen-thawed cells showed higher survival rate and less DNA damage compared to the ones frozen-thawed slowly. The presence of 10-2MMgtt ion w...
DNA damage in S. typhimurium LT-2 by freeze-thawing was studied using 3Hthymidine-labelled bacteria. Quickly frozen-thawed cells showed higher survival rate and less DNA damage compared to the ones frozen-thawed slowly. The presence of 10-2MMgtt ion was effective for both the survival and the protection of DNA damage of the cold-treated cells. Death of the frozen cells was thought to be due, at least in part, to the damge of DNA.