Figure 2.
Growth of mutant strains lacking genes identified through transposon mutagenesis in medium containing methanol and La3+. Growth of M. extorquens AM1 wild-type is represented by blue circles and depicted mutant strains (red triangles) have the following genes deleted: (a) MexAM1_META1p1771, mxaD homolog; (b) MexAM1_META1p1746, orf6; (c) MexAM1_META1p1747, orf7; (d) MexAM1_META1p2024, homospermidine synthase; (e) MexAM1_META1p2359, ABC transporter of unknown function; (f) MexAM1_META1p3908, aminopeptidase. Representative data from biological triplicates are shown. One-way analysis of variance (ANOVA) determined that growth rate differences between mutant and parent strains are significantly different (p < 0.005).