FIG 2.

Loss of the electron transport chain results in enhanced fibronectin binding. (A) Attachment of wild-type (WT) S. aureus SH1000 grown in the absence or presence (+HQ) of HQNO and a hemB::Tn mutant (hemB) to immobilized human fibronectin. Also shown are values relating to the attachment of agr-defective SH1001 (Δagr) grown in the absence or presence of HQNO and of a hemB Δagr strain. (B) Attachment of WT USA300 and hemB and menD mutants. The values represent the mean averages of at least 4 experiments done in triplicate, and the error bars represent the standard deviations of the mean. Values that are significantly greater (P = 0.05 by Student's t test) than that of the wild type are indicated by asterisks.