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Growth curves of strain 630 and its derivatives. A. 630 (630), 630Δerm and 630E were grown in TY-broth for 24 h in a 96 well plate reader. The optical density at 600 nm was measured every 30 min. B. This graph shows the same growth as A. and in addition the growth of derivatives 630Δerm A+B-, 630E A+B- and 630E A+B- CT.
