FIG. 1.
Clumping phenomenon in enterococci induced by the presence of pheromone-responsive plasmids produced by E. faecalis strain JH2-2 or OG1RF. (a) E. faecalis EFS-27b (JH2-2); (b) E. faecalis EFS-30d (JH2-2); (c) E. faecalis EGL-19 (OG1RF); (d) E. faecium CIUM-22 (JH2-2); (e) E. faecium CIUM-34 (JH2-2); (f) E. faecium LS10(pBRG1) (JH2-2).