Viability of the low-temperature storage of the bacteria and the transformation efficiency enhancement methods

摘要

(57) [Abstract] The present invention, E. coli improved viability at low temperatures is enhanced Method for producing a modified bacterial strains capable of enhancing the viability coli bacteria at low temperatures, and to the isolation and use of genetic material that can enhance the viability of the bacteria at low temperatures. In addition to viability at low temperatures is enhanced, and the bacterium, transformation efficiency after cold storage is enhanced. The present invention can be used to insert into bacteria of the present invention a foreign DNA sequence in this state.