Table 3.

The sdeK mutant rescues a csgAmutant in codevelopment assaysa

Strain(s) plated for developmentTotal no. of viable spores/mlbNo. of viablecsgA741 spores/ml
Wild type1.5 × 108 NAc
csgA741 3.2 × 104 3.2 × 104
ΔsdeK1 4.0 × 103 NA 
Wild type + csgA741(1:1)9.4 × 107 5.8 × 107
ΔsdeK1 + csgA741(1:1)1.1 × 108 1.1 × 108
  • a Spores were collected after 3 days of codevelopment as described in Materials and Methods. Spores were plated on CTT, and germinated cells were patched onto CTT plates containing kanamycin to determine strain derivation, as described in Materials and Methods.

  • b Standard deviations were between 15 and 23%.

  • c NA, not applicable.