A High-Throughput Screening Method for Endophytic Bacteria With Antagonistic Activity Against Magnaporthe Oryzae in Rice (Oryza Sativa L.) Seeds

Screening for microorganisms with antagonistic activity against crop pathogens is essential for microbial antagonist preparation, crop disease control, and sustainable agricultural development. This study established a rapid, efficient, one-step high-throughput method for screening endophytic bacteria displaying antagonistic activity against Magnaporthe oryzae (M. oryzae) ACCC36020 in rice seeds. The experimental results indicated that these bacteria could be directly screened from six sample groups using this method. This technique can achieve simultaneous screening and purification, identify endophytic bacteria displaying antifungal activity in rice seeds, and save significant time.