维管束

Ginkgo biloba leaf petiole, is actually composed of many vein from the collection of vascular bundle group.

银杏叶的叶柄，实际上是由许多叶脉集合而成的维管束群。

The phenomena of function equilibrium between root system and canopy was observed.

本研究从植株整体的物理性质（源汇强度和韧皮部传输性质）出发，从更低的层次上模拟观察到了在环境水分条件发生变化时植株根冠间存在的功能平衡现象，并对此作出了机理性的解释，说明了当同化物的传输受维管束中压力势控制，而且韧皮部与所在器官的水势保持平衡状态时，根冠之间就会存在功能平衡关系，这说明了根冠间的功能平衡现象应该是维管植物适应环境变化过程中的一种普遍现象。

Comprehensive comparing the thickness of cuticle, the quantity of sclerenchyma and the density of vein-bundles of the leaves of 7 cultivars, a comprehensive index of rub-resistant character of leaf was gained as one of tramp- resistant character indexes.

综合比较7个品种叶片的角质层厚度、机械组织含量、维管束排列密度，得出叶片耐磨性综合指数，可作为耐践踏性的指标之一。

Healthy spikes of high-resistant varieties had thicker cell wall and tissue of cortical sclerenchyma, more number of cortical sclerenchyma layers, more number of fibrovascular bundles, smaller area of green subcutaneous tissue in rachis, and theses differences, except number of fibrovascular bundles, enlarged over time. Considering inoculated spikes, cell wall and tissue layers of cortical sclerenchyma displayed different, and to how much extent the relationship between this difference and anti-extension ability of variety had not determined. 6. On the analysis of agronomical characters and molecular marking technology, more than 30 alien anti-Gibberella wheat materials and two mutants coming from this experiment were evaluated their hereditary multiplicity.

实验结果还证明，高抗品种和感病品种的穗轴组织结构确实存在一定差异，在健康穗中，主要表现在高抗品种的皮层厚壁细胞壁和皮层厚壁组织较厚，皮层厚壁细胞层数较多，维管束数目较多，穗轴表皮下绿色组织面积较小，抗、感品种间的差异达显著水平，随发育时间延长，高抗品种的皮层厚壁细胞壁厚度、厚壁组织厚度和厚壁细胞层数增加的幅度较大；在病穗中，主要表现在高抗品种的皮层厚壁组织细胞层数和厚壁细胞壁厚度增加的幅度较大。

For the BM-rice,the sclerenchyma of leaves was shrunken,vascular bundle of leaves was reduced,the strumae of outer epidermis of stem was sparse and the link of phloem of root was loosed and dispersed.

2通过扫描电镜观察，脆性突变水稻的组织结构发生了较大变化：叶片薄壁组织扩张，厚壁组织收缩，维管束数目减少；茎杆外表皮硅质瘤状结构分布稀疏；根中柱韧皮部组织排列稀疏，连接松散。

Further comparison of the vascular bundle sheath sclerenchyma cell deterioration in separate plants infected with an additional four CTV isolates, CTV-2, T-TX8, T-TX9 and T-TX24 showed that there were significant differences in scleranchyma cell deterioration in principal lateral vein, midvein, petiole, and healthy control with all four CTV isolates (P=0.000 1, F=80.60, df= 47). Healthy plants had no such sclerenchyma cell deterioration.

CTV-2、T-TX8、T-TX9 、T-TX24等另外4个柑橘速衰病毒株系分别侵染后，主支脉、中脉、叶柄维管束鞘厚壁细胞的衰退与对照差异显著(P=0.000 1， F=80.60， df= 4，7)，健康植株厚壁细胞没有退化。

Histochemical analysis showed that the specific expression of GUS in seeds was not restricted to the endosperm cells, but also occurred in the vascular bundle and epithelial cells of scutellum.

组织化学分析发现在水稻种子专一性表现的GUS活性并不局限於胚乳细胞，维管束组织及子叶盘的上皮细胞也有明显的表现。

It provides online access to over 47,000 specimen records of Oregon vascular plant and 30,000 mycological specimens.

它提供了在线使用的数据库有47，000号俄勒冈维管束植物标本记录和30，000号真菌类标本记录。

For "Allstar", cyto-histological observations suggested that adventitous shoots originated from epidermal or subepidermal cells near vascular tissue.

细胞组织学观察表明，对于草莓品种全明星，芽原基多发生于距离维管束较近的表皮或亚表皮细胞处。

And the leaf succulence of Salsola implicata and Suaeda linifolia changes drastically, strong drought resistance is indicated, but that of Halocnemum strobilaceum and Kalidium foliatum is not

后期：亚麻叶碱蓬和密枝猪毛菜叶表面腺毛、密枝猪毛菜盐腺、盐节木乳突状突起明显；密枝猪毛菜盐囊泡有或缺；密枝猪毛菜和亚麻叶碱蓬粘液细胞出现；盐节木和盐爪爪贮水组织和异常维管束发达；除盐节木外，其他三种植物叶肉质化加强；这四种植物气孔下陷，栅栏组织变薄，但排列更紧密。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。