Phenotypic and Genotypic Characterization of Atypical Listeria monocytogenes and Listeria innocua Isolated from Swine Slaughterhouses and Meat Markets
Table 4
Distribution of the results of the virulence gene amplification from Listeria species.
Primer
Species
Positive
Negative
(%)
(%)
L. monocytogenes
28 (100.0)
0
L. innocua
0
12 (100.0)
inlC In–End
L. monocytogenes
28 (100.0)
0
L. innocua
5 (41.7)
7 (58.3)
prfA Johnson–End
L. monocytogenes
28 (100.0)
0
L. innocua
0
12 (100.0)
L. monocytogenes
28 (100.0)
0
L. innocua
0
12 (100.0)
prfA Detec
L. monocytogenes
28 (100.0)
0
L. innocua
0
12 (100.0)
plcA ext
L. monocytogenes
28 (100.0)
0
L. innocua
5 (41.7)
7 (58.3)
plcA Detec
L. monocytogenes
28 (100.0)
0
L. innocua
5 (41.7)
7 (58.3)
plcB ext
L. monocytogenes
28 (100.0)
0
L. innocua
0
12 (100.0)
inlB In–
L. monocytogenes
28 (100.0)
0
L. innocua
0
12 (100.0)
L. monocytogenes
28 (100.0)
0
L. innocua
0
12 (100.0)
inlA In–Detec
L. monocytogenes
28 (100.0)
0
L. innocua
0
12 (100.0)
L. monocytogenes
28 (100.0)
0
L. innocua
5 (41.7)
7 (58.3)
hly ext
L. monocytogenes
28 (100.0)
0
L. innocua
0
12 (100.0)
hly End
L. monocytogenes
28 (100.0)
0
L. innocua
5 (41.7)
7 (58.3)
L. monocytogenes
28 (100.0)
0
L. innocua
5 (41.7)
7 (58.3)
hly Detec
L. monocytogenes
28 (100.0)
0
L. innocua
5 (41.7)
7 (58.3)
L. monocytogenes
28 (100.0)
0
L. innocua
0
12 (100.0)
inlJ ext
L. monocytogenes
23 (82.1)
5 (17.9)
L. innocua
0
12 (100.0)
Primers described by Liu et al. [16]. 2Primers described by Johnson et al. [6]. 3Primers described by Jung et al. [17]. 4Primers described by Border et al. [22].