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Binding of recombinant and wild-type L. lactis NZ9000 to immobilized fibronectin. Means and standard deviations of bacterial numbers in 20 randomly chosen 4 × 102-μm2 microscopic fields are shown for L. lactis NZ9000 harboring no plasmid (bar 1), pKTH5046 (nisin induced) (bar 2), pKTH5056 (nisin induced) (bar 3), or pKTH5056 (uninduced) (bar 4). The concentration of bacteria was 5 × 108 ml−1. The results shown are group means with 95% confidence intervals. *, P < 0.01.
