Figure 3From: Laboratory divergence of Methylobacterium extorquens AM1 through unintended domestication and past selection for antibiotic resistance Modern outperforms Archival AM1 when grown on nutrient broth. A) Representative growth curves of Modern (black circles) and Archival (gray squares) AM1 grown on nutrient broth (NB). Note that growth - particularly for the Archival strain - slows considerably during late exponential phase, signifying density-dependent growth inhibition. B) Change in the proportion of either Modern or Archival AM1 mixed in co-culture with a fluorescently labeled Modern reference as measured by flow cytometry. Values represent the mean plus SEM of at least three biological replicates grown in 48-well plates (A) or flasks (B).Back to article page