I have 10 MDR isolates (five each of gram positive and gram negative bacteria) including metallo beta lactamase producer isolated from clinical samples and I want to test antimicrobial effect of plant extract against these organism. So could anybody suggest me in using ATCC culture that can be used as standard.
( I have ATCC culture that can be used for media testing but need name of ATCC that should be used in testing antimicrobial compounds against MDR organisms)