Phosphorus-arsenic interaction in the ‘soil-plant-microbe’ system and its influence on arsenic pollution

Jingwen Wu, Jieliang Liang, Lars Olof Björn, Jintian Li, Wensheng Shu, Yutao Wang

    Forskningsoutput: TidskriftsbidragÖversiktsartikelPeer review


    Elevated arsenic (As) in soil is of public concern due to the carcinogenicity. Phosphorus (P) strongly influences the adsorption, absorption, transport, and transformation of As in the soil and in organisms due to the similarity of the chemical properties of P and As. In soil, P, particularly inorganic P, can release soil-retained As (mostly arsenate) by competing for adsorption sites. In plant and microbial systems, P usually reduces As (mainly arsenate) uptake and affects As biotransformation by competing for As transporters. The intensity and pattern of P[sbnd]As interaction are highly dependent on the forms of As and P, and strongly influenced by various biotic and abiotic factors. An understanding of the P[sbnd]As interaction in ‘soil-plant-microbe’ systems is of great value to prevent soil As from entering the human food chain. Here, we review P[sbnd]As interactions and the main influential factors in soil, plant, and microbial subsystems and their effects on the As release, absorption, transformation, and transport in the ‘soil-plant-microbe’ system. We also analyze the application potential of P fertilization as a control for As pollution and suggest the research directions that need to be followed in the future.

    TidskriftScience of the Total Environment
    StatusPublished - 2022 jan.

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