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. 2018 Mar 15;56(7):857–867. doi: 10.1093/mmy/myx135

Figure 3.

Figure 3.

Two C. gattii clinical isolates are resistant to flucytosine but retain the ability to assimilate cytosine. (A) Growth of 5FC resistant isolates (B9322 and JS5), 5FC susceptible isolate (JS91) and S. cerevisiae control strains (WT and fcy1Δ) on minimal media (SD) containing 2.5 μg/ml 5FC. Serial dilutions of cells (105 cells/5 μl to 101 cells/5 μl) were spotted on SD agar supplemented with 2.5 μg/ml 5FC. (B) B9322 and JS5 retain the ability to assimilate cytosine as a sole nitrogen source. Serial dilutions of cells (105 cells/5μl to 101 cells/5μl) were spotted on SD agar supplemented with 1–4 mM of cytosine as the sole nitrogen source. SD denotes synthetic dextrose minimal media. SD (-N) denotes synthetic dextrose media lacking a nitrogen source (NH4SO4).