Two pathways, the "free space" and the "symplast", of absorption and translocation of lead into young roots of Zea mays were demonstrated by using histochemical method.
经组织化学的方法研究证明,玉米幼根对铅的吸收经过了两条通道,即自由空间通道和共质体通道。
2
Symplast pathway and transcelluar pathway is difficultly distinguished by Experiment methods, and have no valid ways to make distinction between apoplast and cell to cell pathway.