Comparison of four methods for determining nitrate utilization by cryptococci
- 1 January 1975
- journal article
- research article
- Published by American Society for Microbiology in Journal of Clinical Microbiology
- Vol. 1 (1) , 9-10
- https://doi.org/10.1128/jcm.1.1.9-10.1975
Abstract
This study evaluated the following methods for determining nitrate utilization: Wickerham broth, a special nitrate broth, Delft plate, and nitrate strip. With 236 isolates of cryptococci as test organisms, the special nitrate broth method gave 99% correct results and the Wickerham broth method gave 98%. The nitrate strip and Delft plate methods gave correct results in 94 and 86% of tests, respectively. The special nitrate broth method is judged superior because it provides accurate results within 48 h, compared to 14 days with the Wickerham broth method.Keywords
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