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. 2004 Oct;186(20):6837–6844. doi: 10.1128/JB.186.20.6837-6844.2004

FIG. 4.

FIG. 4.

Mucoid clinical CF isolates produce more HCN than nonmucoid isolates. A. Mean quantification of HCN produced in 4 h from 20 mucoid and 21 nonmucoid CF clinical isolates. Mucoid isolates produce approximately twofold more HCN than nonmucoid isolates. *, P < 0.05, as determined by unpaired t test. B. Western blot analysis of clinical isolates FRD1, TUMC92, and TUMC197 and their algR deletion strains FRD1R (algR::Smr), TUMC-92R (ΔalgR), and TUMC-197R (ΔalgR) using anti-AlgR. C. Quantification of HCN produced in 4 h from clinical isolates TUMC197 and TUMC92 and their algR deletion strains, TUMC-197R and TUMC-92R, and from the mucoid CF isolate FRD1 and its nonmucoid algR strain FRD1R. Solid bar, mucoid strain; horizontally lined bars, nonmucoid strains; vertically lined bars, algR deletion strains. *, P < 0.05, as determined by unpaired t test. **, P < 0.01, as determined by unpaired t test.