As concentration mostly existed in cytoplasmic supernatant when applying as in the medium . and the distribution percentage of as in cytoplasmic supernatant increased gradually from root to frond . the ca percentage in cytoplasmic supernatant followed the same trend as as 随着砷处理浓度的提高，砷主要位于胞质中，从根部到地上部，砷在胞质中的分布比例逐渐升高，钙在胞质中分布比例与砷相似，呈现从地下部到地上部逐渐增加的规律。
