TABLE 2

pH regulates GlcNAc-induced white-to-opaque switchinga

StrainWhite-to-opaque switching frequency (%) at pH:
5.06.07.07.58.0
WO-1 (FC4)100.0*95.0 ± 4.1*28.3 ± 5.921.1 ± 1.623.0 ± 4.3
JSM-16799.4 ± 0.5*79.4 ± 6.4*31.1 ± 3.540.0 ± 7.045.2 ± 5.0
12C96.4 ± 2.1*75.7 ± 13.1*8.5 ± 5.914.0 ± 3.023.2 ± 5.6
P3700514.5 ± 4.4*2.9 ± 0.11.4 ± 1.51.7 ± 1.31.3 ± 1.1
  • a White cells were plated onto Lee's GlcNAc medium plates and incubated in air at 25°C for 7 days. Assays for the quantitation of the white-to-opaque switching frequencies were performed. *, statistically significant difference (Student's t test, P < 0.05; see footnote a of Table 1).