Figure 3.

Visualization of aflatoxin production in strain 3357 and the generated pyrG mutants of 3357 by thin layer chromatography (TLC). B1: standard for aflatoxin B1 (Sigma). B2: standard for aflatoxin B2 (Sigma). Lanes labeled #1-#8 represent pyrG mutants. 3357: original A. flavus strain.