Pleiotropic pigmentation mutants of Porphyromonas gingivalis.

  title={Pleiotropic pigmentation mutants of Porphyromonas gingivalis.},
  author={Tsute Chen and Haiyan Dong and Rita Y. Y. Yong and Margaret Carlisle Duncan},
  journal={Microbial pathogenesis},
  volume={28 4},
Porphyromonas gingivalis is a Gram-negative, black pigmented oral anaerobe associated with adult periodontitis. The adherence of the bacterium to junctional epithelial cells is the first step in infection and colonization. The molecular mechanisms and genetics of colonization are, as yet, not well understood, although it has been demonstrated that P. gingivalis fimbriae are involved in adhesion. In addition, cell surface cysteine proteinases may play a role either directly as adhesins or… CONTINUE READING