Deterministic assembly of rhizosphere bacterial community suppresses Verticillium wilt via microbial homeostasis in Astragalus plants, China (microbiomejournal.biomedcentral.com)

• Pathogen invasion shifts rhizosphere bacterial assembly from deterministic to stochastic, causing dysbiosis and disease.
• Synthetic communities designed using deterministic assembly provide consistent and predictable disease suppression.
• Deterministic SynComs are less sensitive to inoculation timing and concentration than stochastic SynComs.

"A study from Northwest A&F University, China (Microbiome, 29 May 2026) shows that invasion by the fungal pathogen Verticillium dahliae shifts rhizosphere bacterial community assembly from deterministic to stochastic processes, leading to dysbiosis and disease progression. Synthetic microbial communities (SynComs) constructed using deterministic-assembly principles provided predictable and stable disease suppression regardless of inoculation timing or concentration, whereas stochastic-assembly SynComs were less reliable. The findings highlight the potential of designing SynComs based on community assembly rules for durable biocontrol of soil-borne diseases."