The results also showed that unwashed cell culture of B. megaterium was as effective as the washed cell suspension, and better biocontrol was obtained when longer incubation time of B. megaterium was applied. When the incubation time of
B. megaterium was 60-h, the rate of decay declined to 41.67%±2.89%. Furthermore, relative to the expression
of 18S rRNA, the mRNA abundances of aflR gene and aflS gene in the experiment group were 0.28±0.03 and
0.024±0.005 respectively, indicating that this strain of B. megaterium could significantly reduce the
biosynthesis of aflatoxins and expression of aflR gene and aflS gene (p