Not all E. coli are the same. Laboratory strains are highly engineered for specific functions and carry mutations that prevent them from surviving outside a controlled lab environment.
: An excellent source for certified reference materials and lyophilized (freeze-dried) Sigma-Aldrich E. coli strains . For Education & Home Science buy e coli strains
: You will need strains carrying the fertility factor (F+) to allow for viral infection. Not all E