原表皮

基本解释 (translations)

procuticle

与原表皮相关的网络例句 [注：此内容来源于网络，仅供参考]

Secondly, according to the stem and leaf anatomy, leaf epidermis, pollen morphology and floral development, it is found that there are no close relations between Acorus and Typhales, especially in the aspect of floral development. In the course of floral development of A. calamus, neither bracteloe primordium nor common primordium occurs in the whole course. Early development of the flower is strongly unidirectional. Three shield carpels develop into a pistil. In Sparganium fallax, each female flower has a bracteole. The bracteole primordium and the floral primordium originate from a complex structure. A single saccate carpel develops into a pistil. In staminate flowers, petal and stamen primordia initiate spirally.

菖蒲属与香蒲目的茎叶解剖特征、叶表皮特征、花粉特征及花器官发生特点等亦存在着明显区别，特别是花器官发生特点差异尤为显著，如菖蒲属花器官发生过程中，没有苞片原基，也不存在任何形式的复合原基，花被与雄蕊原基均以单向性方式发生，雌蕊由3心皮发育而成，具有"盾状心皮"的特点等，黑三棱属则有苞片原基发生，且苞片原基与雌花原基起源于共同的复合结构，雄花的花被原基和雄蕊原基均以螺旋状方式发生，雌蕊由单心皮发育而成，未发现有2或3个心皮原基或其痕迹的现象，体现出"囊状心皮"的特点。

Histogen theory A theory, proposed by Hanstein, in which the apical meristem is considered to consist of three main zones, the dermatogen, periblem, and plerome, which differentiate into the epidermis, cortex, and stele respectively.

组织原学说：是由 Hanstein 提出的理论，认为顶端分生组织是由三个主要区域组成，表皮原、皮层原和中柱原，随后它们各自分化为表皮，皮层和中柱。

Cells of the procambium and ground meristem are more vacuolated than those of the protoderm.

原形成层和基本分生组织的细胞比原表皮层细胞更加液泡化。

There is primary thickening meristem at the lower part of rhizome tip under protoderm.

根状茎顶端的原分生组织由鳞片包被，顶端下方的原表皮内存在初生增厚分生组织。

Protoderm The outermost layer of the apical meristem: the tissue that develops from the tunica initials of the apical meristem and gives rise to the epidermis and, in some plants, the root cap.

原表皮：指顶端分生组织的最外层：在植物中由起源于顶端分生组织的原套发育而来，并形成表皮。在根中，则形成根冠。

The results indicate that all of the peltate glandular hairs and head glandular hairs are from an origin—protoderm on the leaf primordium and young leaf, which outgrows on leaf surface and increase radial broad and form the initial cells of the glandular hairs.

研究结果表明，唇形科的腺毛不论是盾状腺毛类还是头状腺毛类，在发育上都是单起源的，即所有的腺毛均起源于叶原基或幼叶上的原表皮细胞。该细胞在叶表面向外突出生长，径向加宽，形成腺毛原始细胞。

Result showed that the epidermis dominant the morphogenesis changes. Mesenchymal is subdominant.β-catenin expression begin from horny placode epidermis stage and go up increasingly to peak value and maintain in hair follicle. The range of mesenchymal change is less.

结果表明，牦牛角的形态发生按照角基毛囊和角质外鞘发生与否分为5个阶段：角原基前期(Ed≤60)表皮增厚，无毛囊发生；角原基中期(Ed60~140)表皮持续增厚，有少量毛囊发生；角原基后期(Ed140~250)表皮变薄，大量毛囊发生；肉角期(≤0.5 a)真皮乳头发生；成角期(≥0.5 a)形成角质外鞘。

According to the shape of head, the glandular hairs were divided into capitate and pehate glandular hairs.

根据腺毛头部形状可把腺毛分为盾状腺毛和头状腺毛，二者均发生得很早，它们的原始细胞都来源于原表皮，一般在茎尖第1和第2片叶原基的原表皮细胞以及茎的1～2节间原表皮细胞中开始发生。

Both of them originated from the protodermal cells and formed four cells through two successive periclinal divisions.

两类表皮毛的原始细胞均起源于叶原基或幼叶的原表皮细胞，经过两次垂周分裂形成四细胞。

The promeristem is consisted of three groups of initial cells, which have typical cytological characteristics of meristem cells. The primary meristem is composed of calyptrogens, primordial epidermises, periblems and pleromes. Both the calyptrogens and the primordial epidermises initiate from the same layer of initial cells.

原分生组织由3群原始细胞组成，其细胞具有典型分生组织的细胞学特征；初生分生组织包括根冠原、表皮原、皮层原和中柱原，其中根冠原和表皮原具有相同的起源。

与原表皮相关的网络解释 [注：此内容来源于网络，仅供参考]

dermatogen：表皮原

认为被子植物的茎端是由三个组织区的前身,即组织原组成,每一组织原有一个或一群原始细胞发生,这三个组织原分别称为表皮原(dermatogen)、皮层原(periblem)和中柱原(plerome)(图3-35,A),它们以后活动能分别形成表皮、皮层和维管柱,

dermatogen：表皮原质

derivative 衍生物 | dermatogen 表皮原质 | dermatosomen 原皮质

dermatogen initial：表皮原原始细胞

dermatogen 表皮原,皮肤抗原 | dermatogen initial 表皮原原始细胞 | dermatoglyph 肤纹,皮纹

mesophyll：叶肉

通常,叶片的内部结构分为表皮、叶肉(mesophyll)和叶脉(vein)三部分(图6-11,6-12). 表皮来源于原表皮,覆盖着整个叶的表面,有上表皮和下表皮之分,近轴面的是上表皮,远轴面为下表皮. 大多数植物叶的表皮由一层细胞构成,

periblem：皮层原

这三个组织原分别称为表皮原(dermato-gen)皮层原(periblem)和中柱原(plerome)(图3-35,A),它们以后的活动能分别形成表皮、皮层和维管柱,包括髓(它如果存在).

plerome：中柱原

这三个组织原分别称为表皮原 (dermato-gen)皮层原(periblem)和中柱原(plerome)(图 3-35,A),它们以后的 活动能分别形成表皮,皮层和维管柱,包括髓(它如果存在).由于以后发现茎端不能显著 地划分出这三层组织原,

procambium：原形成层

原表皮(protoderm)位于最外周,主要进行径向分裂;基本分生组织(ground meristem)位于原表皮之内,所占比例最大,可进行各个方向的分裂,以增加分生组织的体积;原形成层(procambium)位于基本分生组织中的特定部位,其细胞扁而长,

protoderm：原表皮层

protocetraric acid 原岛衣酸 | protoderm 原表皮层 | protofibril 原纤维,前原纤维

protoderm：原表皮层/表皮原

protocurine /马钱子箭毒碱/ | protoderm /原表皮层/表皮原/ | protodiastolic /舒张初期的/

vein：叶脉

通常,叶片的内部结构分为表皮、叶肉(mesophyll)和叶脉(vein)三部分(图6-11,6-12). 表皮来源于原表皮,覆盖着整个叶的表面,有上表皮和下表皮之分,近轴面的是上表皮,远轴面为下表皮. 大多数植物叶的表皮由一层细胞构成,