Table 1 Characterization of Staphylococcus aureus strains.

From: Looking to nature for a new concept in antimicrobial treatments: isoflavonoids from Cytisus striatus as antibiotic adjuvants against MRSA

S. aureus

CIP

ERY

Origin

Relevant characteristics

CECT 976

1.0 (S)

0.25 (S)

Laboratory strain

From Spanish Type Culture Collection; equivalent to ATCC 13565; no antibiotic resistance

RN6390

0.25 (S)

0.5 (S)

Laboratory strain

ST8; no antibiotic resistance

SA1199B

4 (R)

n.p.

Laboratory strain

NorA-overproducing derivative of a clinical isolate, SA-1199, also has A116E GrlA substitution, MSSA

M82

0.25 (S)

0.5 (S)

Indonesia (CI)

ST20-MSSA

M116

32 (R)

32 (R)

Indonesia (CI)

ST239-MRSA

RWW337

16 (R)

>10 000 (R)

Malaysia (CI)

ST239-MRSA

RWW50

2 (I)

64 (R)

Laboratory strain (collection MMIZ Erasmus MC)

ST8-MRSA

  1. Minimal inhibitory concentrations (MICs) of ciprofloxacin (CIP) and erythromycin (ERY) were determined for each strain (µg/mL) according to CLSI guidelines32, which were classified as resistant (R), intermediate (I) or susceptible (S) to each antibiotic. Origin and genetic profiles of the strains are described.
  2. n.p. not performed.
  3. CI – clinical isolate.