| 1. | There are many secretory salt particles on the blade epidermis of siberian , epidermal hair and stoma are irregular , stoma is at the same level of epidermal cell , or even protruding
白刺叶片表皮上分泌有许多盐粒，被单细胞的表皮毛，气孔为不规则型，气孔与表皮细胞平置甚至突出。 |
| 2. | Large cavities also exist under epidermis and occasionally crystals can be found in some of these cavities . there exist many projecting constructions shaped like two guard cells on under epidermis
叶表面无表皮毛，表皮下有大的空腔，内有晶体；下表皮具有大型类似保卫细胞的双细胞突起。 |
| 3. | For amorpha fruticosa linn . , there exists epidermal hair on the upper epidermis , some macro ventilating pit in the spongy tissue , many crystal cells in the phloem of the leaf and around vascular bundles
紫穗槐叶的上表皮有表皮毛，海绵组织局部有大型通气孔，在叶的主脉韧皮部处和叶柄维管束内外都含有许多含晶细胞。 |
| 4. | Most of these species had simple hairs . the stomatal apparatus is paracytic type with one or two subsidiary on both or either side of the guard cells . three types of anticlinal walls of epidermal cells are recognized : straight , sinuolate or sinuate
表皮细胞垂周壁式样、气孔分布密度及式样、下表皮毛被的有无、多少及毛的长度、下表皮角质突起饰物的形态等具有一定的分类学意义。 |
| 5. | Trichomes are specialized epidermal cells , which are normally present on the leaves , stems , and sepals of arabidopsis . they are thought to provide a first line of defence against pests and pathogens , so the cloning and analysis of trichome - specific - promoter is of significance
表皮毛是特化的植物表皮细胞，在拟南芥中表皮毛通常分布在叶、茎、花萼上，它是植物体抵御外界侵害的第一道屏障。 |
| 6. | We clone a 1 . 3kb promoter sequence of the homologous gene in arabidopsis by pcr . this promoter is shown to direct the specific expression of the reporter gene , b - glucuronidase ( gus ) , in trichomes of arabidopsis . promoter deletion analysis reveal that the region from - 300 - - 1 bp is sufficient to direct trichome - specific expression
对其进行缺失突变，构建5个缺失表达载体转基因拟南芥，叶片gus定量测定分析表明- 300bp ? - 1bp序列就可以指导gus基因在表皮毛细胞中特异表达，说明这段序列可能含有指导此启动子在拟南芥表皮毛细胞进行特异表达的核心序列。 |
| 7. | The results of cytochemical localization of silicon demonstrated that there were fan - shaped silica bodies and cyliner shape silica deposit , and high activity of pod were observed in fan - shaped silica bodies . the base of trichomes consisted of large quantity of cells . . the number of cell increased with the age of leaves
黄瓜表皮毛基部细胞因叶龄不同发育程度不? ，即叶龄长，硅分布高，其表皮毛细胞组成数量多，在此硅的分布与表皮毛的位置一致，而同时pod活性与硅分布图吻合。 |
| 8. | The anatomical and ultrastructural research in the cotyledon of antirrhinum majus indicated : cutin membrane and sparse epidermal trichome occurred on the surface of cotyledon . stomata protruded appreciably over the epidermis , the ratio of palisade mesophyll and spongy mesophyll was low , the previous evidence showed structural charecater of shade leaf
通过对金鱼草子叶的组织学和细胞学研究，发现其表皮角质膜薄，具稀疏表皮毛，气孔略突出于表皮，栅栏组织与海绵组织比例小，故具有阴性叶的结构特征。 |
| 9. | There are many adaptive changes in the two research subjects ( artemisia . songarica schrenk . and seriphidium . santolinum ( schrenk ) polijak . ) in morphology and anatomy , such as with the increase of the daily age , the root - shoots ratio increased ; the root became stronger ; the ratio of leaf volume and leaf area increased ; the volume of epidermic cell decreased ; the cut - icle and phellem layer on the surface of root thickened . stoma caved in leaf ; epidermal hair of leaf and stem well - developed , palisde tissue developed well , the cell gap decreased ; the spongy tissue disappeared ; leaf is kinds of isolateralthat is the typical xeromorphic structure ; crystal cell and fibric cell increased ; conducting tissue and mechanical tissue developed well ; bundle sheath appeared
实验研究的两种菊科（ compositae ）植物（准噶尔沙蒿（ artemisiasongaricaschrenk ）和沙漠绢蒿（ seriphidiumsantolinum ( schrenk ) poljak . ） ） ，形态解剖方面的变化表现为：随日龄增加，根长/株高比值日益增大；根系逐渐发达；体积与叶面积比逐渐增大；表皮细胞体积变小；角质层增厚；根外部出现加厚的木栓层；气孔下陷；叶、茎部的表皮毛密布，栅栏组织日益发达；而细胞间隙日渐变小；海绵组织逐渐消失；叶面结构常为典型旱生结构? ?等叶面；晶细胞及纤维细胞数目增多；输导组织、机械组织日渐发达；具有维管束鞘等等。 |
| 10. | H2o2 was cytochemically detected in the cells of epidermal hair and the cell wall of vascular parenchyma cell . cat and apx were the two major h2o2 - scavenging enzymes in plants . when seedlings of arabidopsis thaliana were treated by vd - toxin , the activity of cat and cat3 mrna level were decreased after sa treatment
外源sa 、 no供体处理拟南芥幼苗均能诱导h _ 2o _ 2的积累， no供体的诱导作用最强； no合酶抑制剂处理则未表现出h _ 2o _ 2含量的增强： h _ 2o _ 2的积累部位主要在叶片的表皮毛和维管束组织。 |
