Fig. 3

L. plantarum hinders the growth of Diaporthe FY in vitro. a L. plantarum inhibited the growth of Diaporthe FY in a dose-dependent manner. Both Diaporthe FY and L. plantarum (at different ratios: A1, Diaporthe FY; A2, 1:100; A2, 1:1000) were simultaneously inoculated into nutrient rich medium and incubated at 25 °C for 24 h. The growth of Diaporthe FY is shown. b The growth of mycelia was inhibited in the case of L. plantarum. c-e The quantification of the colony growth rate, the number of mycelia, and spores of Diaporthe FY. f The growth of Diaporthe FY in fly food pre-incubated with L. plantarum. White mycelia were observed on the surface of the food (F1), whereas fewer mycelia were observed in L. plantarum-treated food (F2 and 3). g The colony growth and number of mycelium branches of Diaporthe FY in medium pre-incubated with L. plantarum. The one-sample t-test; * P < 0.05; ** P < 0.01