CLSM of BF01mut colonizing plant tissues. (A) Surface of maize roots and, (B) junction area, adjacent to an emerging root hair. The bacteria grew around the root hair base. Images 3A and B were taken eight days after inoculation. (C) Arabidopsis primary root tip, (D) Arabidopsis root hair. Images 3C and D were taken seven days after inoculation. (E) Lemna root covered by FB01mut biofilm. (F) Lemna frond, ventral side, colonized by FB01mut. Images 3E and F were taken nine days after inoculation. Details see text.