表皮毛

这些结果表明，HR信号有从表皮毛向叶肉细胞中传导的趋势。

These results depict HR signal transduction from trichomes to mesophylls .

表皮毛的差异较小。

The difference of the trichomes is lithe .

对转基因烟草阳性植株叶毛发育情况和根毛发育情况的观察和分析，初步表明棉花TRY基因具有可以抑制表皮毛发育这一功能。

It is initially indicated that cotton TRY gene possess the function to restrain the growth of epidermal hair cell by observing and analyzing the development of Masculine transgene tobacco leaf hair and roots hair .

将此启动子与gus报告基因相连构建植物表达载体并转基因拟南芥，GUS组织化学定位分析表明此启动子在拟南芥叶片和茎的表皮毛细胞中特异表达。

This promoter is shown to direct the specific expression of the reporter gene , B-glucuronidase ( GUS ), in trichomes of Arabidopsis .

主要结果如下：1.根据拟南芥和棉花中已知的与表皮毛发育相关的MYB基因分别构建了超量表达载体和RNAi载体。

The main results are as follows : 1 . Trichome development related MYB genes in Arabidopsis and cotton were constructed for over-expression and RNAi suppression .

表皮毛和气孔器在叶面上分布不规则；

The distribution of trichome and stomata in the leaf was not even .

气孔器被表皮毛覆盖，均为内陷气孔。

The stomata are sunken to cover epidermal hairs .

植物表皮毛发育的分子遗传控制

Molecular Control of Plant Trichome Development

中国沙棘与俄罗斯沙棘及杂交品种相比叶片小，表皮毛层次多，气孔密度大，具有较强的耐旱性。

Sinensis has smaller leaves , more layers of epidermal hair and denser stomas than H. rhamnoides .

因此，拟南芥中关于表皮毛和根毛分化的研究结果为揭示棉纤维发育的分子机制提供了借鉴。

Therefore , the understanding of Arabidopsis trichome and root hair differentiation has shed light on cotton fiber development mechanisms .

叶为异面叶，表皮毛为多细胞型，下表皮气孔密度多于上表皮，上下表皮均有角质层。

The density of stoma in the down-epidermis was bigger than the up-epidermis , the two sides of the leaf had corneous layer .

本文以十字花科13属18种植物为代表，在电子显微镜下观察了其表皮毛微形态和类型。

Leaves of 25 species which cover 13 genera of Mustard Family were examined by scanning electron microscope to reveal the nature and variation of trichomes .

艾蒿的表皮毛长、浓密，气孔密度较低、气孔较小，抗旱性较强；

Since stoma size , stoma density of Artemisia argyi were lower and its epidermis hair density was more , epidermis hair was longer , its drought-resistant characteristics was stronger .

目前，在拟南芥中已经克隆到了多个与表皮毛发育相关的基因，其表皮毛发育的分子遗传控制机制也已经有很多研究。

So far , many genes which participate in the regulation of trichome development in Arabidopsis has already been cloned , the molecular mechanism of Arabidopsis trichome development has been illustrated too .

叶片上表皮毛与下表皮毛的变化基本一致，表皮毛逐渐下垂并贴于表皮，叶表皮蜡质随着水分胁迫程度的加重呈先增加后减少的变化趋势，蜡质纹饰与其基本一致。

The change between upper and lower epidermis hairs is similar . Epidermis hair gradually dropped then affixed to epidermal . Change trend of wax on Leaf epidermal was firstly reduced and then decreased with increasing water stress , in line with the wax patterns .

云南秋海棠属叶表皮及毛被的扫描电镜观察

Observation of Leaf Epidermis and Its Hair of Begonia from Yunnan

长白忍冬初生茎表皮有毛状体和腺体的存在。

The primary structure of its stem : There are trichome and glandular scale on the epidermis and not amylum grain in the endodermis .

除了特殊行为、保护色和机体物理屏障如角质表皮、鳞毛或甲壳外，昆虫还具有识别和清除体内异物的高效免疫系统。

Besides the protection of physical barriers such as cuticle , scale and carapace , insects have immune related molecules to recognize and kill invaders .

类天疱疮IgG和C3在毛囊表皮下的外毛根鞘外层与结缔组织鞘之间呈明显的线状沉积。10例正常人及20例天疱疮患者均无线状沉积。

Results : Linear deposition of IgG or C3 pemphigoid antibodies could be observed in the layer between the outer root sheath and dermal tissue in bullous pemphigoid patients , which was not seen in healthy controls and pemphigus .

mm-2.随海拔升高叶面积、叶厚度、栅栏组织和海绵组织的厚度、气孔器面积、表皮细胞面积以及表皮毛密度呈增加趋势，而角质膜厚度、表皮细胞密度和表皮毛长度则呈减小趋势；

With increasing elevation , the leaf area , leaf thickness , palisade mesophyll thickness , spongy mesophyll thickness , stomatal area , epidermis cell area and pubescence density were increased , while cutin membrane thickness , epidermis cell density , pubescence length , and stomatal density were decreased .

山顶青冈栎叶片部分表皮结构（角质膜、表皮毛、表皮细胞、气孔）趋向旱化。

Some of structures such as cuticle , trichomes , epidermis cell , stomata will express the trend of xerophilization .

利用光镜和扫描电镜观察了8种在北京地区引种栽培成功的藤本类忍冬的叶表皮形态，观察指标包括气孔器、表皮毛、表皮细胞特征等。

Epidermal characters of leaves , which include characteristics of stomata , trichomes and epidermal cells , of 8 species of climbing honeysuckle plants which are introduced successfully from abroad and domestic have been observed by the light microscope and scanning electron microscope .

而抗性同叶片总厚度、表皮厚度、气孔数目、气孔大小、气孔面积比率、小叶脉数、表皮毛及蜡质层无关。

While the pollution resistance is not in close relation with leaf and epidermis thickness , stoma amounts and size , stoma area proportion , tiny vein amounts , epigenous hair and wax .

对叶片的形态特征包括叶片下表皮气孔类型、保卫细胞和副卫细胞的特征、叶片两面的普通细胞（形状和垂周壁特征）和表皮毛进行了较详细的描述。

And ordinary cells ( in shape and anticlinal walls feature ) as well as the trichomes in both sides of the leaves are described in detail .