De-coupling of root–microbiome associations followed by antagonist inoculation improves rhizosphere soil suppressiveness

摘要: It was hypothesized that disruption of the root–microbiome association creates empty rhizosphere niches could be filled by both soilborne pathogens and beneficial microbes. The effect de-coupling associations related to improve soil suppressiveness investigated in cucumber using pathogen Fusarium oxysporum f. sp. Cucumerinum (FOC) its antagonist Bacillus amyloliquefaciens SQR9 (SQR9) system. root–soil microbiome disrupted applying fungicide carbendazim soil, then FOC or/and were inoculated rhizosphere. In treatment, wilt disease incidence significantly increased 13.3 % on average compared treatment without fungicide. However, when applied with FOC, effectively reduced incidence, improved plant growth a no control. These results indicate followed inoculation can suppressiveness, which may help develop strategies for efficient application microbes agriculture.