初生壁

具有ATP酶活性的线粒体、内质网、高尔基体等细胞器和运输小泡、质膜、壁旁体等结构以及微管等细胞骨架系统一起参与了纤维细胞初生壁的形成。

The organelles as mitochondria , endoplasmic reticulums and Golgi bodies , and other substructures like transfer vesicles , plasmalemma and lomasome , and the cytoskeletal systems , were together involved in fiber primary wall formation .

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 ) .

担孢子与担子的小梗连接处出现初生壁溶化现象。

Dissolution of primary wall appears at the neck of sterigma .

植物初生壁的非纤维素多糖及其生理功能

The Non-cellulose Polysaccharides of Plant Primary Cell Wall and Its Physiological Roles

毛竹茎秆纤维的初生壁形成过程又经历了与维管组织的协同生长期和侵入生长期两个阶段。

During primary wall formation , fiber underwent successively co-growth with vascular bundle and intrusive growth .

这头一层由纤维素和非纤维物质构成，被称作初生壁。

This initial layer , formed of both cellulosic and noncellulosic materials , is called the primary wall .

果胶类物质是存在于高等植物初生壁和细胞间隙中的一组多糖，果胶是一种杂多糖。

Pectic substance which existed in primary cell wall and cell interval of higher plant were a group of polysaccharides .

2绒毡层细胞部分来源于初生壁细胞，部分来源于药隔的基本组织。

The tapetum is partly derived from the primary parietal cells and partly from the ground tissue on the connective side .

纤维细胞的发育过程可以分成明显的三个连续阶段：纤维原始细胞形成期、初生壁形成期和次生壁形成期。

The developmental process of fibers could be divided into three continual stages such as fiber initial formation and the formation of primary wall and secondary wall .

结果表明，苎麻纤维细胞壁具有6个层次，其中初生壁1层，次生壁5层。

The results showed that fibre cell wall of ramie had 6 layers , 1 of which formed the primary wall and 5 of which formed the secondary wall .

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 .

果胶普遍存在于各种水果中，是水果细胞中层和初生壁的主要成分，果汁中的果胶对其粘度和浊度有较大影响。

Pectin , the major component in the middle lamella and primary cell wall of higher plants , has a great impact on the viscosity and turbidity of fruit juices .

在棉纤维发育过程中，纤维细胞壁发育通常可分为初生壁和次生壁两个阶段。

Cotton fiber cell wall is usually divided into two categories : the primary cell wall ( PCW ) and the secondary cell wall ( SCW ) during cotton fiber development .

初生壁阶段一系列复杂的调控影响棉纤维细胞密度和长度，纤维素合成与次生壁沉积最终影响棉纤维的产量和品质。

A series of complex regulations in PCW stage finally affect fiber cell intensity and length . Cellulose synthesis and SCW deposition in later phase determine cotton fiber yield and quality at last .

棉花纤维是胚珠表皮细胞分化伸长的结果，其生长发育分为四个阶段，即起始期、伸长期（初生壁合成期）、次生壁合成期和成熟期。

The cotton fiber is a single-celled fiber differentiated from epidermal cells of ovules . The development of cotton fiber can be divided into four stages : initiation , elongation ( primary cell wall synthesis ), secondary cell wall synthesis and maturation .

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 .

结果表明，整个芽孢的发育过程依次经历了前芽孢、双层膜芽孢、初生芽孢壁形成、芽孢衣与孢外壁形成以及皮层形成等过程。

The results showed that the developing process of the spore roughly included the formation of septum , the double membrane wrapped spore , the preliminary growth cell wall , sequentially ;

果胶质广泛存在于高等植物中，是植物细胞间质和初生细胞壁的重要组分，与纤维素、半纤维素一起构成一个阻挡外界的坚韧屏障，在植物细胞组织中起着黏合作用。

Pectin is the main components of middle layer structure of plant cell wall . It can form a tough barrier , together with cellulose and hemicellulose , to block the outside world .