Article
[Utilization of D-histidine by the derivative strain TA100 of Salmonella typhimurium LT 2].
Nihon saikingaku zasshi. Japanese journal of bacteriology - 1 Nov 1991
Ohtsuka M, Morinaga N, Okada M
Abstract excerpt
In general, wild-type gram-negative enteric bacteria are not able to utilize D-amino acids as the precursors of respective L-amino acids. We found, however, that an L-histidine auxotroph mutant, TA100, derived from Salmonella typhimurium strain LT 2 and used in the Ames test, showed a biphasic growth curve in the presence of both L- and D-histidine at concentrations of 5 micrograms/ml and 100 micrograms/ml,...
Topics
- Culture Media
- Histidine
- Mutation
- Salmonella typhimurium