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Table 2 The antimicrobial activity of precipitated proteins from B. amyloliquefaciens N2-4 and N3-8 against pathogenic bacteria

From: Secondary metabolites from Bacillus amyloliquefaciens isolated from soil can kill Burkholderia pseudomallei

Bacterial indicators

Inhibition zone (Ø mm)

B. amyloliquefaciens N2-4 proteins

B. amyloliquefaciens N3-8 proteins

Gram-positive pathogenic bacteria

 Corynebacterium diphtheriae

17

23

 Streptococcus pneumoniae

>30

>30

 Streptococcus pyogenes

27

27

Gram-negative pathogenic bacteria

 B. pseudomallei p37

21

24

 Moraxella catarrhalis

>30

>30

 Citrobacter freundii

14

18.5

 Salmonella group D

14.5

23

 Proteus vulgaris

14.5

23

 Escherichia coli

11

19.5

 Shigella group D

18

24

 Klebsiella pneumoniae

11.5

15.5

 Acinetobacter baumannii

17.6

23

 Vibrio parahaemolyticus

0

15

 Stenotrophomonas maltophilia

23.8

28