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Table 1 Amoxicillin resistant strains’ amplification contigs. Fragments of the chromosomal DNA that all include the ampC gene but vary in length, are multiplied by the indicated factor

From: The influence of oxygen and oxidative stress on de novo acquisition of antibiotic resistance in E. coli and Lactobacillus lactis

Strains

Length (kb)

Copy numbers (times)

Anaerobic MG1655

53

30

Aerobic MG1655

2.5

17

Anaerobic ΔoxyR

5.5

41

Aerobic ΔoxyR

59

9