内皮层

Effect of Light on the Formation of Endodermis in Stem of Broad Bean Seedling Ⅱ.

篇名 光、暗处理对蚕豆茎内皮层形成的影响Ⅱ。

The inner surface of endodermis in maize and wheat were undulate and there were"pore-like"structure in it, size 70-90nm, frequency 2, 000 per square micron.

玉米内皮层细胞内切向壁的内表面起伏不平，并具有70-90纳米的"孔状"质外体结构，其频率约为2，000个/平方微米。

IL-1βmRNA expression in the developmental brain in Wistar rat: IL-1β mRNA in hippocampus, cerebral cortex and subcortex was detected by postnatal day 1 and gradually increased with development, reached a peak at postnatal day 21, and then gradually decreased to lower level at adult; In P77PMC rat, IL-1β mRNA expression was similar to Wistar rat before postnatal day 14, then gradually increased and surpassed Wistar rat at postnatal day 28, reached a peak in adult.

原位杂交显示谷氨酸诱导Wistar大鼠惊厥和P77PMC大鼠听源性惊厥后脑内IL-1βmRNA表达情况。结果发现，两种不同惊厥模型大鼠惊厥后脑内IL-1βmRNA表达存在明显的差异。谷氨酸引起惊厥诱导脑内皮层、海马和丘脑IL-1βmRNA表达增高的程度远较P77PMC大鼠听源性惊厥为低，而且惊厥后IL-1βmRNA表达增加较慢，于4-8h达高峰，而听源性惊厥可于惊厥后2h迅速达高峰。但两种形式惊厥诱导脑内IL-1βmRNA表达最高的部位均是海马。

Casparian strip was frequently regarded as a specific structure of tracheophyta , which appeared as a lignified and suberized narrow zone encircling the radial and transverse walls of the endodermal cells .

是维管植物根内皮层的一种特有结构，其主要特征是在内皮层细胞的初生壁上，围绕细胞径向壁和横向壁的木质和栓质的带状结构。

Casparian strip was frequently regarded as a specific structure of tracheophyta, which appeared as a lignified and suberized narrow zone encircling the radial and transverse walls of the endodermal cells.

凯氏带(Casparian strip or Casaprian band)是维管植物根内皮层的一种特有结构，其主要特征是在内皮层细胞的初生壁上，围绕细胞径向壁和横向壁的木质和栓质的带状结构。

In cross-sectioned root form 2 middle bark layer next Internal bark layer especial structure of regularly array; epidermis cell of stems and leaves have developed thickened epiderm, leaves epidermis covers hair, it formed developed vascular bundles.(4)Chromosomes of Agropyron cristatum is tetraploid .

根横切面上形成了在紧靠内皮层的两层中皮层细胞有规则整齐排列成两环的特殊结构；茎和叶表皮细胞均具有发达的角质层，叶表皮多密被毛，其形成了发达的维管束及维管束鞘。

The result showed that, the body wall most outer layer cuticle assumesthe translucent porodine, the surrounding entire body wall; Close isconnected with the cuticle 表皮层 for 合胞体 the structure, inthe back, the abdomen and its two sides separately adds thick to inprominent Cheng Jizhuang, separately contains the back side,腹侧the nerve and compares to the developed back, the abdomen nerve; Themyo- position to the body wall most inner layer, has the muscle cellto arrange becomes; Between the body wall and the digestive tractcavity is a body cavity; Digestive tract for 肌质 structure, afterinference for roundworm's esophagus.

结果显示，体壁最外层的角质层呈半透明的胶状，包围整个体壁；与角质层紧密相连的表皮层为为合胞体构造，在背、腹及其两个侧面分别加厚向内突出成脊状，分别包含背侧、腹侧神经和相比对发达的背、腹神经；肌层位于体壁最内层，有肌细胞排列而成；体壁与消化道之间的空腔为体腔；消化道为肌质结构，经推断为蛔虫的食道。

After observing the specimens from JMA-m groups, we have found that epithelium and endothelium of cornea full, the lesion are light edema at stromatic layer. One small amount of inflammatory-cell infiltrate presents the collagen fiber lack of rules at shallow stromatic layer.

观察角膜安的结果表明，中药中剂量组角膜上皮和内皮层完整，基质轻度水肿，浅基质层内少量炎性细胞浸润，胶原纤维走行欠规则，整体改变较低剂量组减轻。

The morphology and structure of reconstructed tissue was detected by microscope and scanning electron microscope.Results:(1) Compared with the control group, the cellular proportion of laminin group increased in 62 ~M phase, and decreased in Go~Gi phase significantly. As shown by the microscope, the cells of control group were in low density. The cells in mass connected tightly. The microfilament appeared reticular formation. The nucleus were the same in size. The cells of laminin group were in high density and put out so many lamellipodia, filopodia, which connected with the surrounding cells. The microfilament increased, elongated, and changed from reticulodromous to sarciniform, which reached to the pseudopods. The nucleus were different in size .(2) As shown by the inverted microscope and the cell growth curve, comparing with the controlgroup, cells of each test group increased evidently. The cellular proportion of each test group increased in S phase and G2 ~M phase, and decreased in Go~Gi phase significantly, but there was no considerable interations between LN and EGF;(3) As shown by the morphological observations, the cultured cat corneal endothelial cells formed an integrated membrane, and attached to the Descemets membrane closely, which was similar to the natural tissue. The cells connected tightly to each other, and some of them arranged in hexagon approximately.

结果：(1)层粘连蛋白组处于G_2～M期细胞比例较对照组显著提高，Go～G_1期细胞比例显著下降，提示层粘连蛋白促进内皮细胞DNA合成，及细胞分裂增殖；光镜下，对照组细胞分布成团状，细胞密度较低，细胞间连接紧密，细胞内微丝结成网状，细胞核大小一致；与对照组相比，层粘连蛋白组细胞生长旺盛，细胞密度高，向周边伸出大量板状及丝状伪足，细胞内微丝增多、拉长、集结成束，伸入伪足中，细胞核形状大小不一致；(2)倒置显微镜观察及细胞生长曲线显示，各组细胞数目随时间增加而明显增多，各实验组较对照组增生显著，EGF和LN联合应用组各时间点细胞数目最高；实验组处于S期和G_2～M期细胞数目增加，Go～G_1期细胞数目减少；提示EGF、LN单独及联合应用均可促进细胞增殖，但尚不能认为二者有交互作用；(3)倒置显微镜下，组织培养的猫角膜内皮细胞排列成密集的单层，细胞间连接紧密；组织学观察发现，培养的猫角膜内皮细胞形成完整的内皮层，贴附于脱水基质的后弹力膜上，与正常的角膜内皮组织结构相似；扫描电镜下，组织培养的猫角膜内皮细胞间紧密镶嵌排列，可见某些细胞呈近似六边形排列，细胞大小不甚一致，胞核清晰。

Starch sheath The innermost layer of cells of the cortex replacing the endodermis in some stems, especially young herbaceous dicotyledonous stems. Its cells contain prominent starch grains.

淀粉鞘：在部分植物的茎的皮层中，尤其是双子叶草本植物茎，代替内皮层结构的最里一层细胞，其内含有明显的淀粉颗粒。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。