Fig. 2

Rice blast resistance induced by amino acids. a, The infection ratio in amino acid-treated rice. Roots were dipped into 10 mM L-amino acid solutions for 24 h and inoculated with rice blast fungus. Blast lesions were counted 5 d later and the ratios between the values for mock-inoculated and fungus-inoculated plants were calculated. The experiment was repeated twice. Circles indicate the infection ratio obtained from two independent experiments and the bars show the average values. b, Blast lesions on rice leaves treated with amino acids