Microbial amendments alter protist communities within the soil microbiome

Plant-beneficial microbes improve while pathogens reduce plant performance. When introduced in soils, such microbes can induce entire microbiome changes. However, the impact of those microbial introductions on protists – key predators within the soil microbiome – remain unknown. Here, we tracked how soil protists respond to bacterial (Bacillus and Ralstonia) and fungal (Trichoderma and Fusarium) introductions, with both microbial groups...