胞间层

细胞壁的不同区域，如细胞角隅、胞间层、初生壁和次生壁各层，具有不同的半纤维素组成，其与木质素等细胞壁组分结合共同构成不同的细胞壁分子结构。

Different parts of cell walls , such as cell corners , middle lamella , primary walls and various layers of secondary walls , had different kinds of hemicelluloses , which formed various cell wall architecture combined with lignin and other cell wall components .

利用透射电镜-能谱（TEM-EDXA）技术定量地测定了氯化过的云杉管胞和桦木纤维的细胞角处的胞间层木素和次生壁木素的氯含量。

The chlorine concentrations of lignin in the cell corner middle lamella and secondary wall of chlorinated spruce tracheids and birch fibers were determined by TEM-EDXA technique .

纤维细胞壁的超微结构典型地分为胞间层（ML）、初生壁（P）、次生壁外层（S1）、次生壁中层（S2）及次生壁内层（S3）。

TEM images showed that cell wall of the fibre is typically divided into three layers including the primary wall ( P ), the middle lamellar ( ML ) and the secondary wall ( S1 , S2 and S3 ) .

通过采用扫描电镜能谱（SEM-EDXA）对木素在细胞壁微区分布进行的研究表明，原料木素脱除顺序为次生壁>复合胞间层>细胞角隅。

It is indicated through the test of the lignin distribution in the cell wall with the aid of SEM-EDXA that the sequence of lignin removing is the S > ML > CC .

SEM-EDXA研究表明细胞角隅区、胞间层、次生壁中层的木素浓度比为2.15∶1.32∶1。

Moreover , the SEM-EDXA results indicate that the lignin concentration in the cell corner , the middle lamellar and the middle layer of the secondary wall is in a ratio of 2.15 ∶ 1.32 ∶ 1 .

第三层细胞壁，特别是薄片状胞间层，有抵抗力，只要一直充满水就会保持原始组织尺寸。

Only full of water the original tissue dimension won 't change because the third cellular wall , especially filmy intracellular layer , is resistive .

首先，原始分泌细胞团中央几个细胞的胞间层膨胀、溶解，形成裂缝状胞间隙；

First , some original secretory cells in the center of secretory cavities began to expand and dissolved , and small spaces appeared between the cells .

无论是云杉或是桦木，细胞角处的胞间层或次生壁的木素都极易和氯反应。

In both woods , chlorine reacted very rapidly with lignin but the extent of reaction was greater in the secondary wall than in the cell corner middle lamella .

实验结果如下：1.透射电子显微镜观察发现小麦根中皮层细胞壁先由靠近细胞质的初生壁开始降解，然后是胞间层。

The results were as follows : 1 . The first detectable degradation site of cell wall in middle cortical cell was primary wall , and then the intercellular space .

在树脂道形成阶段，果胶酶首先溶解相邻细胞的细胞壁角隅处胞间层，使之出现胞间隙。

At the formative stage , the intercellular space , which formed by pectinase degrading middle lamella , first appeared in the corner among the forthcoming epithelial cells and then gradually enlarged .

管胞次生壁和复合胞间层的弹性模量和硬度之间均存在较显著的正线性相关关系。

A positive linear correlation between MOE and hardness was also found both for SW and CML of tracheids .