Biocontrol Activity of Volatile-Producing and against and Aflatoxin Production on Stored Rice Grains.

In our previous study, three bacterial strains, KU143, KU313, and AS15, were selected as effective biocontrol agents against on stored rice grains. In this study, we evaluated the inhibitory effects of the volatiles produced by the strains on growth and aflatoxin production on stored rice grains. The three strains significantly reduced mycelial growth of in dual-culture assays compared with the negative control strain, KU408, and an untreated control. Of these tested strains, volatiles produced by KU143 and AS15 markedly inhibited mycelial growth, sporulation, and conidial germination of on agar medium and suppressed the fungal populations in rice grains. Moreover, volatiles produced by these two strains significantly reduced aflatoxin production in the rice grains by . To our knowledge, this is the first report of the suppression of aflatoxin production in rice grains using and volatiles.