Persistent organic fertilization reinforces soil-borne disease suppressiveness of rhizosphere bacterial community

摘要: Soil-borne diseases are an increasingly serious threat to agriculture systems. Organic fertilization would improve soil quality and microbial community as well, thus is appreciated a promising control strategy for soil-borne diseases. Yet, how communities mediate disease under organic remains largely unknown. Here, we aimed explore the mechanism of controlling by fertilization. We investigated effects various regimes on suppressiveness toward pathogenic fungi in peanut rhizosphere. The tested were fertilizer, chemical fertilizers, combination both. Uninterrupted application fertilizer field plots seven planting seasons resulted root rot, with significantly higher yield. Upon fertilization, bacterial microbiome assembly rhizosphere played key role developing against rot; upon potential fungal pathogens dominated boost rot. Further, structural equation model revealed that contributed Furthermore, strongly suppressed mycelial growth spore germination Fusarium sp. ACCC 36194. Collectively, monocropping system, persistent favors development protective shield plant rhizosphere, maintaining health.