Table 3. Coefficients of correlation between various structural parameters of the biofilms formed by Salmonella Agona on polystyrene over the course of 144 hours of incubation.
| Total biofilm | Individual components within biofilm | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Biovolume | Surface coverage | Maximum thickness | Average thickness | Roughness | Live cells | Dead cells | Proteins | Lipids | α-polysac. | β-polysac. | ||
| Total biofilm | ||||||||||||
| Biovolume | 1.000 | |||||||||||
| Surface coverage | 0.630** | 1.000 | ||||||||||
| Maximum thickness | 0.829*** | 0.632** | 1.000 | |||||||||
| Average thickness | 0.941*** | 0.609** | 0.845*** | 1.000 | ||||||||
| Roughness | -0.693** | -0.915*** | -0.609** | -0.689** | 1.000 | |||||||
|
Individual components within biofilm |
||||||||||||
| Live cells | 0.941*** | 0.513* | 0.684** | 0.876*** | -0.646** | 1.000 | ||||||
| Dead cells | 0.540* | 0.322 | 0.627** | 0.522* | -0.167 | 0.269 | 1.000 | |||||
| Proteins | 0.778*** | 0.710*** | 0.708** | 0.735*** | -0.659** | 0.597** | 0.532* | 1.000 | ||||
| Lipids | 0.467 | 0.457 | 0.332 | 0.519* | -0.534* | 0.536* | -0.078 | 0.408 | 1.000 | |||
| α-polysaccharides | 0.341 | 0.200 | 0.585* | 0.346 | -0.079 | 0.068 | 0.752*** | 0.532* | -0.222 | 1.000 | ||
| β-polysaccharides | 0.685** | 0.797*** | 0.717*** | 0.665** | -0.850*** | 0.549* | 0.369 | 0.696** | 0.272 | 0.271 | 1.000 | |
***, P < 0.001
**, P < 0.01
*, P < 0.05.