Mutation and breeding of thermostable trehalose synthase producting strain
Thermus aquaticus FL-03 which was used as the starting strain.The mutant strain YUV3 with relatively high thermostable trehalose synthase was isolated by UV-NTG.Results showed that the enzyme activity was 1.50 U/mL,which was 3 times higher than parent strain.Transfer of culture experiment showed that YUV3 was a favourable and stable strain.