Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
Product Format
freeze-dried
Storage Conditions
Frozen: -80°C or colder Freeze-Dried: 2°C to 8°C Live Culture: See Propagation Section
Type Strain
no
Preceptrol®
yes
Comments
No vitamin requirement
Reference strain for assays of amphotericin B fungizone and nystatin fungicidin designated by FDA. RefU.S. Pharmacopeia General Chapters; <81> Antibiotics-Microbial Assays. Rockville, MD: U.S. Pharmacopeia; USP USP34-NF29, 2011
The strain used to be classified as Saccharomyces cerevisiae based on traditional taxonomic characterizations, but a recent molecular authentication convincingly identified it as Saccharomyces kudriavzevii, not S. cerevisiae. The taxonomic update of this strain will not affect its application in antifungal drug testing assays and many other usages. RefSuh SO, et al. Update of USP drug testing reference strain ATCC® 2601™. Pharma. Microbiol. Forum Newslett. 19: 4-11, 2013.
Medium
ATCC® Medium 28: Emmons' modification of Sabouraud's agar
ATCC® Medium 200: YM agar or YM broth
ATCC® Medium 1245: YEPD