| 1. | The collective trichome cover of a plant surface is called pubescence .
植物表面聚集的毛状物称为柔毛。 |
| 2. | Toxicity was reduced when nicotiana trichome exudates were removed by various washing methods .
当通过不同洗涤方法除去烟草属毛状体的分泌物时，毒力降低。 |
| 3. | The purely mechanical effect of glandular trichome exudates is the entrapment and immobilization of small arthropods .
具腺毛状体分泌物的纯机械作用是诱捕和粘住小的昆虫。 |
| 4. | This promoter may provide efficient bioengineering to enhance pest and pathogen resistance , and is of theoretical significance on the trichome molecular system
此启动子可用于基因工程提高植物体对外界侵害的抵抗力，对于研究表皮毛发育调控机理也有一定理论意义。 |
| 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. | Described here is the cloning and characterization of a new trichome - specific - promoter in arabidopsis . by ddrt ( differential display reverse transcription ) - pcr and reverse northern , a 280bp sequence is acquired from the epidermal in viciafaba , which is specially expressed in the epidermal . then using race , we abtain a 3 . 0 kb gene segment including the 3 ' end full sequence and the 5 ' end partial sequence of the 280bp segment
首先，我们利用差异显示技术和反northern技术，以蚕豆叶肉细胞为对照，从蚕豆叶片表皮细胞中克隆出长280bp的新的表皮特异表达基因片段，再通过race技术获得此基因片段的3 ’端全序列和5 ’端部分序列。 |
| 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。 |
