Figure 4From: The capsule of Porphyromonas gingivalis reduces the immune response of human gingival fibroblastsNegative capsule staining of fuchsine-stained P. gingivalis cells with India Ink. Phase contrast microscopic picture at a 1000× magnification of (A) W83 wild type strain, (B) epsC mutant and (C) the complemented epsC mutant in an India ink preparation which reveals the capsule as a white halo (arrow). The inset shows an extra six times magnification.Back to article page