Figure 1
Biological characteristics of strains from different hosts. (A) Colony morphology of rice IA, maize IA and soybean IA after culture on PDA for 48, 72 and 96 h and 6 days. Scale bars, 2 cm. (B) Diameter of mycelia of rice IA, maize IA and soybean IA cultured on PDA at 12, 24 and 36 h post-inoculation (hpi). Error bars, ±standard error (SE) of means of raw data. The least significant difference (LSD) method was used; different lower case letters (a–c) indicate significant differences among three strains at P < 0.05. (C) Pathogenicity of rice IA, maize IA and soybean IA. Four-week-old rice cultivar 93–11 leaves were inoculated onto a block of PDA containing fresh medium (diameter 0.5 cm); controls were inoculated with fresh PDA. Typical leaves were photographed at 48 hpi. Scale bars, 1 cm. (D) Histogram depicting spot area caused by rice IA, maize IA and soybean IA under infection of rice, maize and soybean leaves at 48 hpi. Error bars, ± SE of means of raw data. The least significant difference (LSD) method was used; different lower case letters (a–c) indicate significant differences among three strains at P < 0.05.
