Mycological culture media and its quality control.

The need for control of the quality of media used in the isolation and identification of fungi is an important aspect of the overall quality control of laboratory culture media; however, guidelines for such controls have not been available. In this paper, primary isolation media with and without appropriate drugs are suggested for use on a variety of specimens. Positive and negative quality control organisms that indicate clear-cut postiive and negative results on the fungal media to be tested are listed. Several alternative procedures for maintenance of fungi are discussed.