FIG. 2.

Adherence of Pla⁺ Y. pestis KIM D27 and E. coli LE392(pC4006) as well as of Pla⁻ Y. pestis KIM D34, E. coli LE392(pC4007), and E. coli LE392 to the BM preparation Matrigel reconstituted on glass slides as well as to the ECM prepared by detergent extraction from human lung NCI-H292 cells. The bacteria were tested at four different concentrations as indicated, and the data shown are means ± SDs for 20 randomly chosen microscopic fields of 1.6 × 10⁴ μm². The control surface was coated with BSA.