ABSTRACT

It is important to study the role and mechanism of arbuscular mycorrhizal fungi (AMF) on plants in arsenic-contaminated soil phytoremediation. In this paper, it was introduced that the ways of AMF acting on arsenic hyperaccumulator and non-hyperaccumulator were different; then the mechanism of AMF acting on plants was discussed from five aspects: (1) AMF improved the absorption of nutrients; (2) AMF would have participated in the reduction process of As (V) to As (III) and changed the form of As in plant; (3) AMF would have participated in the transformation process of inorganic arsenic to organic arsenic; (4) AMF absorbed and assimilates arsenic; and (5) AMF could improve the rhizosphere soil environment, thus affecting the arsenic absorption and accumulation of plants. Finally, the shortcomings and future of the research were prospected to promote the relevant research progress.

摘要

研究丛枝菌根真菌（AMF）在砷污染土壤植物修复中对植物的作用和机制具有重要意义。介绍了AMF对砷超富集植物和非超富集植物的作用方式不同；然后从五个方面探讨了AMF作用于植物的机制：（1）AMF提高了养分的吸收；(2) AMF会参与As(V)到As(III)的还原过程，改变植物中As的形态；(3) AMF参与了无机砷向有机砷的转化过程；(4) AMF吸收和同化砷；(5)AMF可以改善根际土壤环境，从而影响植物对砷的吸收和积累。最后，