Table 1.
Significant grouping effects on the growth yield of 150 non-Shigella Escherichia coli strains in the analyses of variance accounting for genetic, pathogenic, host anthropogenic and host diet groups.
| Groups* | |||||||
|---|---|---|---|---|---|---|---|
| Carbon sources | A/B1 (75) | B2 (38) | D (26) | E (11) | F-values† | P-values‡ | R² |
| D-Galactonic acid lactone | 0.82 (±0.03) | 0.94 (±0.05) | 1.01 (±0.06) | 0.40 (±0.09) | 11.58 | 8.12 × 10−7 | 0.23 |
| D-Serine | 0.40 (±0.04) | 0.81 (±0.06) | 0.40 (±0.07) | 0.13 (±0.11) | 12.50 | 2.79 × 10−7 | 0.22 |
| Glycyl-L-aspartic acid | 0.17 (±0.02) | 0.35 (±0.03) | 0.20 (±0.03) | 0.18 (±0.05) | 8.87 | 2.04 × 10−5 | 0.18 |
| Lactulose | 0.27 (±0.02) | 0.22 (±0.03) | 0.13 (±0.03) | 0.10 (±0.05) | 8.60 | 2.83 × 10−5 | 0.15 |
| p-Hydroxyphenylacetic acid | 0.52 (±0.04) | 0.09 (±0.05) | 0.35 (±0.07) | 0.33 (±0.10) | 13.15 | 1.33 × 10−7 | 0.30 |
| Commensal (87) | ExPEC (28) | InPEC (35) | |||||
| D,L-Lactic acid | 1.10 (±0.02) | 0.96 (±0.03) | 1.00 (±0.02) | 12.26 | 1.26 × 10−5 | 0.18 | |
| Uridine | 0.51 (±0.02) | 0.32 (±0.04) | 0.35 (±0.03) | 10.87 | 4.14 × 10−5 | 0.20 | |
*
Numbers of strains in the groups are indicated in parentheses next to the group label (the three ungrouped strains were discarded). For each carbon source with significant difference between groups, the least-square group mean is given, as well as its corresponding standard error in parentheses.
†
The tested F-distributions had 3 and 138° of freedom for the genetic group effect and 2 and 138 for the pathogenic group effect.
‡
Only the effects for which the FDR was <0.1% were considered significant.