Here we report that two different types of transporters mediate transport of arsenite, the predominant form of arsenic in paddy soil, from the external medium to the xylem. 亞砷酸鹽是稻田土壤中砷的主要存在形式，而木質(zhì)部把營(yíng)養從根部運輸到植株。
Arsenite transport in rice roots therefore shares the same highly efficient pathway as silicon, which explains why rice is efficient in arsenic accumulation. 在發(fā)現硅酸會(huì )干擾亞砷酸鹽的攝取之后，這組作者提出，增加土壤中可利用的硅，可能會(huì )減少從土壤和澆灌用水到食物鏈的砷的運輸。
