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. 2017 Apr 7;8:579. doi: 10.3389/fmicb.2017.00579

Figure 4.

Figure 4

Heat resistance assays of E. coli wild-type strains, FAM21805 mutants, and K-12 MG1655 transconjugants. Relative survival compared to time point 0 of strains incubated at 55°C for 15, 30, and 45 min. (A) FAM21805 wild-type, -ΔLHR1, -ΔLHR2, and ΔLHR1ΔLHR2. (B) FAM21805 wild-type, K-12 MG1655 wild-type, and K-12 MG1655 transconjugants harboring LHR2 or both LHRs of FAM21805. (C) C604-10, K-12 MG1655 wild-type, and K-12 MG1655 transconjugants featuring LHR1 or LHR2 of C604-10. Error bars indicate standard deviations. Significances are indicated for the 45 min. time points based on one-tailed t-tests in (A,B), and Mann-Whitney rank sum tests in (C); *p < 0.05, **p < 0.01.