Table 4 Comparison of virulence gene prevalence and phylogroup between weak and moderate-strong biofilm producers.
From: Biofilm formation as a novel phenotypic feature of adherent-invasive Escherichia coli(AIEC)
Biofilm formation category | |||||||
|---|---|---|---|---|---|---|---|
Total (N = 65) | Moderate-Strong (N = 26) | Weak (N = 39) | P | ||||
Virulence gene | N | (%) | N | (%) | N | (%) | |
Adhesin-encoding genes | |||||||
papC | 32 | (49.2) | 11 | (42.3) | 21 | (53.8) | 0.255 |
sfa/focDE | 13 | (20.0) | 10 | (38.5) | 3 | (7.7) | 0.003 |
afa/draBC | 8 | (12.3) | 2 | (7.7) | 6 | (15.4) | 0.301 |
fimH | 62 | (95.4) | 26 | (100) | 36 | (92.3) | 0.209 |
fimAv MT78 | 14 | (21.5) | 6 | (23.1) | 8 | (20.5) | 0.520 |
Protectin/invasion-encoding genes | |||||||
ibeA | 9 | (13.8) | 7 | (26.9) | 2 | (5.1) | 0.017 |
K1 neuC | 9 | (13.8) | 3 | (11.5) | 6 | (15.4) | 0.478 |
Siderophore-related genes | |||||||
iucD | 37 | (56.9) | 13 | (50.0) | 24 | (61.5) | 0.253 |
Toxin-encoding genes | |||||||
hlyA | 15 | (23.1) | 9 | (34.6) | 6 | (15.4) | 0.067 |
cnf1 | 15 | (23.1) | 9 | (34.6) | 6 | (15.4) | 0.067 |
cdtB | 5 | (7.7) | 3 | (11.5) | 2 | (5.1) | 0.312 |
Phylogroup | |||||||
A | 9 | (13.8) | 1 | (3.8) | 8 | (21.1) | 0.052 |
B1 | 8 | (12.3) | 3 | (11.5) | 5 | (13.2) | 0.583 |
B2 | 34 | (52.3) | 21 | (80.8) | 13 | (34.2) | < 0.001 |
D | 13 | (20.0) | 1 | (3.8) | 12 | (31.6) | 0.006 |