Table 3.
Features of biofilms formed by P. gingivalis wild-type strain and mutants in dTSB
| Peak parametersa) | |||
|---|---|---|---|
| Strain | Number of peaks | Mean distance between peaks (μm) | Mean peak height (μm) |
| ATCC33277 (wild type) |
45.5 ± 3.5 | 2.0 ± 0.9 | 6.9 ± 1.4 |
| KDP150 (ΔfimA) |
52.5 ± 3.5* | 1.7 ± 0.7* | 23.7 ± 5.6** |
| MPG67 (Δmfa1) |
35.8 ± 3.6** | 2.7 ± 1.6** | 20.9 ± 4.4** |
| MPG4167 (ΔfimAΔmfa1) |
32.3 ± 3.8** | 3.0 ± 1.6** | 20.5 ± 4.3** |
| KDP129 (Δkgp) |
39.8 ± 3.2 | 2.2 ± 1.2 | 19.6 ± 5.4** |
| KDP133 (ΔrgpAΔrgpB) |
41.0 ± 5.7 | 2.2 ± 1.0 | 45.9 ± 4.5** |
| KDP136 (ΔrgpAΔrgpBΔkgp) |
43.0 ± 1.4 | 2.1 ± 0.8 | 22.2 ± 2.4** |
a)Number of peaks was evaluated in an area sized 90 (x axis) × 2 (y axis) μm. The mean ± SE of 10 areas was shown.
*p < 0.05 and **p < 0.01 in comparison with the wild type using a Scheffe test.