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以重要树种Ｉ－６９杨插穗为材料，分别在含不同水平Ｃｅ（ＮＯ３）３的Ｈｏａｇｌａｎｄ溶液中培养，经过快速冷冻干燥，塑料真空渗透及包埋，用透射电镜能量分散型ｘ射线微区分析法对Ｃｅ及Ｍｇ、Ｐ、Ｓ、Ｋ、Ｃａ、Ｆｅ等元素在根尖成熟组织切片的表皮、皮层及中柱内薄壁细胞的细胞壁、细胞质、细胞核及液泡中的含量和分布进行了测定。表明Ｃｅ不但进入植物细胞，且在细胞核里有明显富集。Ｃｅ进入细胞的量和其施用的外界浓度并不完全是正比关系，在体内的分布也不是随机的。Ｃｅ对植物体内Ｍｇ、Ｐ、Ｓ、Ｋ、Ｆｅ的吸收都有不同程度的促进作用，特别是对Ｐ、Ｓ和Ｋ影响显著，不同浓度的Ｃｅ不仅影响根的发育，也会对离子的吸收、运转及分布产生不同的影响。Ｃｅ对ｃａ的吸收抑制影响不是直接的。
The main species of I-69 Yang cuttings as materials, respectively, with different levels of Ce (NO3) 3 Hoagland solution, after rapid freeze-drying, plastic vacuum infiltration and embedding, using transmission electron microscopy energy dispersive X-ray microanalysis The content and distribution of Ce, Mg, P, S, K, Ca, Fe and other elements in the cell wall, cytoplasm, nucleus and vacuole of epidermal, cortical and medial parenchyma cells in apical mature tissue sections . That Ce not only into plant cells, and in the nucleus was significantly enriched. The amount of Ce entering the cell is not exactly proportional to the concentration applied to it, nor is the distribution in the body randomized. Ce on the absorption of Mg, P, S, K, Fe in plants have different degrees of promotion, especially on P, S and K significant effect, different concentrations of Ce not only affect the root development, but also the absorption of ions , Operation and distribution have different effects. The effect of Ce on absorption inhibition by ca is not straightforward.