Mechanism of aluminum toxicity recovery in plant root

连续铝处理的根表现出严重的断裂形成在根表面和外皮层区域伴随着更高水平的超氧阴离子，H2O2和木质素与氧化胁迫相比，恢复根。但两种根系的脂质过氧化作用差异不显著。在回复处理过程中，观察到中心圆柱的再伸长。铝处理后，根面形成以死细胞为主的带状区域。带状区域具有阻挡有毒Al进入中心区域的作用。因此，该区域似乎具有类似编程细胞的功能。

The continued Al treatment root showed sever rupture formation at root surface and outer cortex region concomitant with higher level of superoxide anion, H2O2 and lignin related with the oxidative stress compared to the recovery root. However, lipid peroxidation was induced in both roots without significant difference. Re-elongation of central cylinder was observed during the recovery treatment. The belt-like region consisting of mainly dead cells was formed on the root surface by Al treatment. The belt 〓like region has a role as barrier inhibiting the entry of toxic Al into the central region. Thus the region seems to have a programmed cell like function.