Advances in study on the effects of arbuscular mycorrhizal fungi on plants in remediation of arsenic-contaminated soil

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.