Figure 1From: Transcriptome profiling of a Sinorhizobium meliloti fadD mutant reveals the role of rhizobactin 1021 biosynthesis and regulation genes in the control of swarmingSwarming behaviour of S. meliloti strains. The swarming motility phenotype of S. meliloti wild-type strains Rm1021 and GR4 and their corresponding fadD-derivative mutants 1021FDC5 and QS77 was analyzed by inoculating aliquots (2 μl) of each strain prepared as described in Materials and Methods onto semisolid MM plates containing 0.6% purified agar. Replicates corresponding to the same strain were placed in a row. The photograph was taken 48 hours after inoculation and is a representative of at least three independent experiments.Back to article page