The Iturin A2 produced by Bacillus megaterium strain B196 could inhibit the growth of Rhizoctonia solani.
The median effect concentration (EC50) of Iturin A2 on R. solani was 39.5621 滋g/mL. The control efficacy of Iturin A2 at
the concentration of 160 滋g/mL on the rice sheath blight caused by R. solani was 100%, 85.31% and 84.42% in vitro, in
pot and in field, respectively. This efficacy was higher than that of 5% jinggangmycin at the concentration of 200 滋g/mL. |