Effects of various concentrations of brevinin-2SSb (red lines), ranatuerin-2SSa (green lines), and granuliberin-SSa (blue lines) on the growth of plant pathogenic Gram-negative bacterium Xanthomonas oryzae pv. oryzae (A), Gram-positive bacterium Clavibacter michiganensis subsp. michiganensis (B), and fungus Pyricularia oryzae (C). Cells of each bacterial strain or spores of P. oryzae were incubated with serially diluted brevinin-2SSb, ranatuerin-2SSa, or granuliberin-SSa for 24 or 96 h at 28 °C, respectively. Points and vertical bars represent means and SEM, respectively (n = 4). In all panels, values with the same letters are not significantly different (p ≥ 0.05). Ranatuerin-2SSa was not active against P. oryzae.