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Fig. 4 | AMB Express

Fig. 4

From: Heterogeneous expression of DnaK gene from Alicyclobacillus acidoterrestris improves the resistance of Escherichia coli against heat and acid stress

Fig. 4

D-values of recombinant E. coli BL21–DnaK and E. coli BL21 at heat and acid stresses. a pH 5.0, b pH 5.5, c pH 6.0, d pH 7.0. The results represent the mean ± SD of three biological replicates. T-test is used to analyze the statistical differences. Different capital letters on the top of each column indicate the differences at the significant level of 0.01 between groups

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