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. 2014 Oct 28;28(6):1155–1164. doi: 10.1080/13102818.2014.969877

Table 4.

Antimicrobial activity of the three plant extracts on selected pathogenic bacteria.

  Size of inhibition zone (cm)
 
Different concentrations of Calluna vulgaris extract
Bacterial pathogens 0.23 g/mL 0.15 g/mL 0.08 g/mL 0.04 g/mL
Ag. tumefaciens 4 3.5 3
Erwinia sp. 2.5 2.5 2.3 1.8
Klebsiella sp. 3 3 1.3 1.1
Escherichia coli
Proteus sp.  
Pseudomonas aeruginosa 2.8 3 2.5 1.2
  Different concentrations of Tribulus terrestris extract
 
0.34 g/mL
0.23 g/mL
0.14 g/mL
0.06 g/mL
Ag. tumefaciens 1.3 1
Erwinia sp.
Klebsiella sp. 1.9 1.8 1.7 1.2
Escherichia coli
Proteus sp.
Pseudomonas aeruginosa
  Different concentrations of Ferula hermonis extract
 
0.23g/mL
0.15 g/mL
0.08 g/mL
0.04 g/mL
Ag. tumefaciens 3.5 3.5
Erwinia sp.
Klebsiella sp.
Escherichia coli
Proteus sp.
Pseudomonas aeruginosa