TABLE 3.
Genetic diversity for the identified Arcobacter species from the 56 positive samples obtained by culturing under aerobic (A) and microaerobic (MA) incubation conditions
| Species | No. of strains/no. of isolates (%) | Incidence (%) of the species | No. of strains/no. of isolates (%) obtained according to the incubation conditions |
||
|---|---|---|---|---|---|
| Only A | Only MA | A and MA | |||
| A. butzleria | 71/306 (23.2) | 60.2 | 37/132 (28.8) | 23/44 (52.3) | 11/130 (8.5) |
| A. molluscoruma | 25/104 (24.0) | 21.2 | 14/32 (43.7) | 2/5 (40.0) | 9/67 (13.4) |
| A. cryaerophilus | 6/18 (33.0) | 5.1 | 5/17 (29.4) | 1/1 (100) | 0 |
| A. nitrofigilis | 5/19 (26.3) | 4.3 | 2/11 (18.2) | 3/8 (37.5) | 0 |
| A. ellisii | 3/3 (100) | 2.6 | 2/2 (100) | 1/1 (100) | 0 |
| A. bivalviorum | 2/9 (22.2) | 1.7 | 0 | 1/2 (50.0) | 1/7 (14.3) |
| A. skirrowii | 2/7 (28.6) | 1.7 | 1/1 (100) | 1/6 (16.7) | 0 |
| A. mytili | 1/5 (20.0) | 0.8 | 1/5 (20.0) | 0 | 0 |
| A. thereius | 1/1 (100) | 0.8 | 0 | 1/1 (100) | 0 |
| A. defluvii | 1/2 (50.0) | 0.8 | 0 | 1/2 (50.0) | 0 |
| Arcobacter sp.b | 1/2 (50.0) | 0.8 | 1/2 (50.0) | 0 | 0 |
| Total | 118/476 (24.8) | 100 | 63/202 (31.7) | 34/70 (48.6) | 21/204 (10.3) |
a
Both species were significantly (P < 0.05) more prevalent under aerobic conditions (A. butzlerii, 37 + 11 = 48 versus 23 + 11 = 34 and A. molluscorum, 14 + 9 = 25 versus 2 + 9 = 11). One strain of the former species and five of the latter were isolated from different samples (Fig. 2).
b
Strain F128-2.