The Role of the Root in the Induction of Xylem Differentiation in Peas
The Role of the Root in the Induction of Xylem Differentiation in Peas
复制标题
根在豌豆木质部分化诱导中的作用
DOI：
10.1093/oxfordjournals.aob.a084216
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发表时间：
1968
期刊：
影响因子：
4.2
通讯作者：
T. Sachs
中科院分区：
文献类型：
--
作者：
T. Sachs
已知芽的生长部分诱导它们下面的维管组织的分化，并且这种诱导是由于生长素的产生。这里要解决的问题是为什么木质部的形成是在生长的根中进行的。本研究利用豌豆嫁接苗薄壁组织向导管分子的再分化。证明这不是由于来自根尖的刺激，而是由于来自芽的刺激进入根的运动。即使在薄的切片中，运动的极性也保持不变，但它可以被强烈的芽影响所逆转。
It is known that growing parts of the shoot induce the differentiation of vascular tissues below them and that this induction is due to the production of auxin. The problem dealt with here is why the formation of xylem proceeds in the growing roots. The redifferentiation of parenchyma to tracheary elements in grafts of pea plants was used in this study. It is proved that this is not due to stimuli coming from the root tip but rather to the movement of a stimulus coming from the shoot into the root. The polarity of movement is maintained even in thin sections, but it can be reversed by a strong shoot influence.