FIG 4.

Cellular interactions and biofilms formed by R. leguminosarum A34 derivative strains. CLSM images are horizontal (x-axis) projections of optical sections showing bacterial attachment at day 1 and the biofilms formed at day 4 in chambered glass cover slides (×1,000 magnification) by A34, the isogenic lpcA LPS mutant, and the complemented lpcA pFC222 strains. The insets are zooms (3×). Size bars indicate 2 μm.