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AMB Express
Fig. 4 | AMB Express

Fig. 4

From: Improvement of putrescine production through the arginine decarboxylase pathway in Escherichia coli K-12

Fig. 4

Effects of the wild-type ArgA expressed from the genome on putrescine production. A Bacterial cell growth and B putrescine concentration in the supernatant of strains KT39 (ΔargA, open circle) and KT207 (argA+, closed triangle) grown in LB medium supplemented with 100 μg/mL of ampicillin. When the OD600 reached 0.4, 0.02 mM IPTG was added. Data shown are averages ± standard deviations, and culture experiments were performed in triplicate

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