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Table 2 Phenotypic characterisation of biofilm production by MPA and genotypic detection by PCR of ica, bhp, aap and embp genes from 125 ovine and 70 human NAS isolates

From: Comparative profiling of agr locus, virulence, and biofilm-production genes of human and ovine non-aureus staphylococci

OVINE Isolates (n)

Biofilm production (MPA)

Biofilm genes

PIA

Proteinaceous factors

WBPa

BPb

icaA

icaD

icaA/D

bhp

aap

embp

n

%

n

%

n

%

n

%

n

%

n

%

n

%

n

%

S. epi (57)

17

30

11

19

1

1.7

1

1.7

1

1.7

30

52.6

20

16

54

94.7

S. chr (29)

0

0

1

3.4

0

0

0

0

0

0

4

13.8

0

0

8

27.5

S. hae (17)

0

0

0

0

0

0

0

0

0

0

0

0

2

11.7

1

5.8

S. sim (8)

7

87.5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

S. cpr (6)

3

50

0

0

1

16.6

0

0

0

0

1

16.6

0

0

0

0

S. war (5)

0

0

0

0

0

0

0

0

0

0

2

40

0

0

0

0

S. sap (1)

1

100

0

0

1

100

0

0

0

0

0

0

0

0

0

0

S. int (1)

1

100

0

0

0

0

0

0

0

0

0

0

0

0

0

0

S. mus (1)

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Total (125)

29

23.2

12

9.6

3

2.4

1

0.8

1

0.8

37

29.6

22

17.6

63

50.4

HUMAN Isolates (n)

Biofilm production (MPA)

Biofilm genes

PIA

Proteinaceous factors

WBPa

BPb

icaA

icaD

icaA/D

bhp

aap

embp

n

%

n

%

n

%

n

%

n

%

n

%

n

%

n

%

S. hae (28)

1

3.6

0

0

0

0

0

0

0

0

0

0

4

14.3

0

0

S. epi (26)

9

34.6

0

0

10

38.5

10

38.5

10

38.5

16

61.5

25

96.1

23

88.5

S. lug (4)

3

75

0

0

0

0

0

0

0

0

0

0

0

0

0

0

S. hom (4)

4

100

0

0

0

0

0

0

0

0

0

0

4

100

0

0

S. cap (3)

3

100

0

0

3

100

0

0

0

0

0

0

0

0

0

0

S. war (2)

2

100

0

0

0

0

0

0

0

0

0

0

1

50

1

50

S. xyl (1)

1

100

0

0

1

100

0

0

0

0

0

0

0

0

0

0

S. pas (1)

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

S. sap (1)

1

100

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Total (70)

24

34.3

0

0

14

20

10

14.3

10

14.3

16

22.8

34

48.6

24

34.3

  1. Isolate abbreviations: S. hae, S. haemolyticus; S. epi, S. epidermidis; S. chr, S. chromogenes; S. sim, S. simulans; S. lug, S. lugdunensis; S. hom, S. hominis; S. cpr, S. caprae; S. S. cap, S. capitis; S. war, S. warneri; S. xyl, S. xylosus; S. pas, S. pasteuri; S.int, S. intermedius;S. sap, S. saprophyticus subsp. bovis; S. mus, S. muscae
  2. aWBP weak biofilm-producing isolate
  3. bBP biofilm-producing isolate