Scanning electron microscopy on agar of the mutant SINett. In (a) the entire colony at 9 hours. At variance with wild type, all bundles turn towards the colony center. (b) shows frequent cell separations along the filaments; (c-d) show the presence of minicells (indicated by arrows).
Di Franco et al. BMC Microbiology 2002 2:33 doi:10.1186/1471-2180-2-33