Strain

Menaquinone (μg/ml)^a

Maximum Absorbance Abs₅₉₅^b

Ratio (Maximum Absorbance/Control)^c

S. aureus ATCC 25923

2.0

0.52 ± 0.01

3.4^d

S. aureus 8325-4

1.0

0.29 ± 0.01

2.1 ^d

S. aureus agr^–

1.0

0.47 ± 0.02

2.8 ^d

S. aureus sarA^–

1.0

0.11 ± 0.02

1.0

S. aureus agr⁻ sarA^–

1.0

0.13 ± 0.02

0.9

S. aureus M48155 (MSSA)

4.0

0.62 ± 0.01

4.3^d

S. aureus S38506 (MRSA)

0.05

0.87 ± 0.02

6.1^d