CONTROL OF XYLOGENESIS WITHIN THE WHOLE TREE

CONTROL OF XYLOGENESIS WITHIN THE WHOLE TREE
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DOI:
10.1051/forest:19890563
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发表时间:
1989-01-01
期刊:
ANNALES DES SCIENCES FORESTIERES
影响因子:
--
通讯作者:
ALONI, R
ALONI, R
中科院分区:
其他
文献类型:
--
作者:
ALONI, R

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这里要处理的问题涉及控制整棵树内木材的有组织分化。从解剖学上讲,木材是木质部,它在树木的不同部位具有不同的结构和组成。在成熟的器官中,木材是由侧分生组织,维管形成层产生的。由维管形成层产生的木材称为次生木质部。它是一种复杂的组织,由多种类型的细胞组成。植物木质部分化的特点是高度有序。维管和支持成分以及薄壁细胞以可预测的三维结构分化,这是每个物种的典型特征。因此,一个树种的鉴别只能从木质部来进行。全树的木质发生是一种开放型分化,这种分化一直持续到树的顶端和侧面分生组织生长。因此,有一个新的木质部组织,是在一个动态的相互关系的持续发展。这是一个
The problems to be dealt with here concern the control of organized differentiation of the wood within a whole tree. Anatomically, the wood is the xylem and it has a different structure and composition in different parts of the tree. In mature organs, the wood is produced by a lateral meristem, the vascular cambium. The wood produced by the vascular cambium is termed secondary xylem. It is a complex tissue, comprised of several types of cells. Xylem differentiation within the plant is characterized by a high degree of order.The vascular and supporting elements, as well as the parenchymatic cells, differentiate in a predictable, three-dimensional structure, typical for each species. There-fore, a tree species can be identified sole-ly by its xylem. Xylogenesis within the whole tree is an open type of differentia-tion, which continues as long as the tree grows by apical and lateral meristems. Thus, there is a continuous development of new xylem tissues that are in a dynamic relationship with one another. This com-