Assertion: vanillin's effect | /r/CapableOf | use recombinant strain
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text: Effect of growth temperature and temperature shift (from 44 to 30°C) on P fer promoter-driven expression in E. coli cells were evaluated using a recombinant strain carrying a plasmid, named pE0, which contains the ech upstream region and the first 36 ech codons fused in frame with the lacZ gene (Calisti et al., 2008).