【摘要】 目前,连作障碍已成为制约一些地区蔬菜生产可持续发展的重要因素,连作障碍的原因是复杂而综合的,它的发生不仅同土壤传染性病害和土壤理化性状劣变有关,也同根系分泌物和残茬分解物等引起的自毒作用有关。植物根系分泌物中的酚酸已被鉴定出对植物产生自毒作用,并对根际微生物有重要影响。本文从多个角度论述了酚酸与土壤微生物之间的相互关系,对酚酸类物质与根际微生物之间的相互作用关系和影响机理的研究进行了综述,同时提出了今后在酚酸类物质及根际微生态方面需要深入研究的几个问题。研究酚酸物质与土壤微生物之间的相互作用将为防治连作障碍提供理论依据并具有实际指导作用。更多还原

【Abstract】 Nowdays, continuous cropping obstacles become one of the most important factors that constraint vegetable productive long-lasting development in some region. The factors of continuous cropping obstacles are complex and co mprehensive. Its occurrence is not only relative to the infectious diseases of s oil and the inferior changes of physiochemical properties of soil but also relat ive to autotoxicosis which result from the secretion of roots and decomposition of remains. The secretion from the roots of plant which have been verified to be nefit for auto-toxic effect have serious effect on microorganism of rhizosphere. Interaction and impact are illustrated between phenolic acids and microorganism of rhizosphere from different acpect in this paper. Meanwhile we point out that some crucial questions in the aspect of phenolic acids and micro-ecological of rhizophere must be studied in the future. The study on interaction of phenolic a cids and microorganism can sapply with the basic theory of prevention and elimin ation of continuous cropping obstacles and put it into effect in reality.更多还原