【摘要】 植物与土壤微生物的长期互作过程中,逐渐演化形成了植物-微生物相互适应的协同调控机制。植物种类和根系分泌物可以影响根际微生物的群落结构,而根际微生物群落反过来也可以影响植物对土壤环境中生物和非生物胁迫的响应。植物磷饥饿(耐低磷)响应机制和抗病(免疫)机制研究在农业生产上都具有十分重要的意义。近年来的研究表明,植物根际微生物可以介导植物对营养物质识别(饥饿响应)和病原防御系统(免疫)分子机制的整合调控。本文综述了本领域研究的最新进展,详细解析了植物体内磷胁迫调控与免疫调控两个重要网络在根际微生物群落影响下发生的整合调控,探讨了植物体内分子应答与根际生态的互作机制,对开展作物耐低磷及抗病机制的研究和应用都具有重要意义。更多还原

【Abstract】 Long-term interaction between plants and soil microbes gradually forms a synergism regulatory mechanism in soils. Both plant species and root exudates could affect the structural characteristics of root microbial community. Conversely, the rhizospheric microbes also influence the responses of plants to biotic or abiotic environmental stresses in the soils. Studying the responsive mechanism of plant to the phosphorus starvation(low phosphorus tolerance) and disease defense system(immunity) has a positive role in promoting agricultural production management. Recent studies have shown that the rhizospheric microbes could induce the recognizing of plants to the nutrient substance(starvation response) and regulating the pathogen defense system(immunity) in an integrated pathway. Phosphorus stress and immunity in plants is usually influenced by the root associated microbes, we highlighted the recent research progresses in the interaction mechanism between the plant molecular responses and rhizospheric ecological types. We hope that this review will provide a novel clue for better understanding of the responsive mechanism of low phosphorus-tolerant crop and disease defense system.更多还原