We are trying to identify brevibacillus agri (QC strain) with API based methods. However, anytime we perform the test, low discrimination results or genus level identification is obtained rather than species-specific identification.
We incubated the cell on TSA/Blood agar for longer than 24h.
Although we get 99% identification in some situation (can not differentiate the difference morphologically), we dont obtain consistent and reproducible results.
Do you have any suggestion for cultivation conditions or have any idea why this happens ?