Figure 6.

Effect of carbon source on the production of andrimid and expression of the adm gene cluster in Serratia plymuthica A153.

A. Halos of antibiosis against Bacillus subtilis of filter‐sterilized supernatants of A153 strain JH6 (zeamine negative) grown in minimal medium with different carbon sources. The bioassays were repeated at least three times, and representative results are shown. All the carbon sources were used at a final concentration of 15 mM. With the exception of lactose, all carbon sources used are frequently found in plant root exudates. Bars, 5 mm.

B. β‐galactosidase activity (filled symbols) throughout growth measured from the chromosomal fusion admK::lacZ in Serratia plymuthica A153 LacZ in minimal medium with different carbon sources. Open symbols represent bacterial growth. Data are the mean and standard deviation of three biological replicates. Growth and doubling times of A153 in all the carbon sources used are shown in Fig. S5.