小胞的

In the first week of renal obstruction, the immunohistochemical labeling of tubular VEGF was intensified, accompanied by deformation and dilation of adjacent Flk-1-positive PTC lumina, mild renal tubular cell apoptosis and minimal tubulointerstitial fibrosis.

结果： 1。肾脏梗阻第一周，肾小管上皮细胞胞浆里的VEGF染色在局部有增强，Flk-1阳性PTC数量变化不显著，肾小管上皮细胞凋亡和肾间质纤维化很少见。

Results: Expression of PAI-1, TIMP-1 and FN in kidney of diabetic rats began to increase in the second week of diabetes; PAI-1 and TIMP-1 mainly expressed in intracytoplasm of renal tubular epithelial cells, while FN mainly expressed in renal tubule matrix and glomerului; Their expression showed a tendency of increasing along with the progression of diabetes.

结果：PAI-1、TIMP-1及FN表达从糖尿病2周起较正常对照组明显增多(P.01)，PAI-1和TIMP-1阳性表达主要位于肾小管上皮细胞胞浆内，FN阳性表达主要位于肾小管间质和肾小球，且随着糖尿病进展有逐渐增加的趋势。

So, the nucleocytoplasmic ratio decreased. 10^(-5)MATRA significantly suppressed the proliferation of os732 with only 39.5% cells when compared with untreated cells. Cells in G1 phase increased significantly, and the number of S phase decreased. Expressions of cy-clinD1, cycimD2 and CDK4 mRNA declined, especially cyclinD2 and CDK However, expressions of cyclinD3 and P21WAF1 mRNA changed little.

结果 ATRA作用后，OS732细胞胞浆展开，细胞核变小，核浆比例变小；瘤细胞生长减慢，细胞计数为正常对照组的39.5%； G0/G1期细胞明显增多，S期细胞减少，细胞阻滞于G0/G1期；CyclinD1、CyclinD2、CDK4mRNA表达均下降，尤以CylinD2、CDK4下降最明显，CyclinD3、P21WAF1mRNA未见明显改变。

The primary sporogenous cells divided into the second sporogenous cells which would turn into microspore mother cells in a microsporangium. The cytokinesis in meiosis of the microspore mother cells was of modified simultaneous type, forming the decussate, isobilateral or T-shaped tetrads.

初生造孢细胞分裂形成次生造孢细胞，次生造孢细胞再转化为小孢子母细胞，小孢子母细胞减数分裂的胞质分裂为修饰性同时型，四分体排列方式为交叉型、对称型或"T"型，成熟花粉粒二细胞型，开花时散出。

In the conjugation pair, the normal cell can finish the normal meiosis process, the gametic nuclei fused, the zygotic nucleus divided and at last formed two cells with micronucleus.

对上海四膜虫有小核细胞和无小核细胞的接合过程进行了跟踪观察，发现在四膜虫中也存在胞质配合。

According to the observation of the microstructure of small diameter lumber with scan electron microscope, there are many bordered pits of the radial trancheidal wall in the small-diameter Larch, and most of them have pit film. The resin is not only in resin canal, but also in some trancheid and ray parenchyma cells. The drying defects of small-diameter Larch lumbers were the most severe in consecution heating, fluctuating-heats 2h in between, and drying defects were nearly not observed in fluctuating-heats 6h. There is tylosis in the vessel of the heartwood of small-diameter Cathay poplar. The bordered pits of the radial trancheidal wall are dense, and the pits between vessels are alternate, most of them have pit film. Different collapse happened in all the small-diameter Cathay poplar lumbers. The collapse of small-diameter Larch lumbers was the most severe with consecution heating, fluctuating-heats 2h in between, the least with fluctuating-heating 6h.

通过扫描电镜观察发现，小径木落叶松的径壁具缘纹孔数目较多，且多具纹孔膜，小径木落叶松除在树脂道中含有树脂外，在一部分管胞胞腔内以及一些木射线细胞中也含有树脂，在产生缺陷的小径木落叶松锯材中，连续加热方式下锯材的开裂缺陷最为严重，波动2时次之，波动6时几乎没有开裂现象；小径木大青杨心材导管中的层状浸填体含量较多，且径壁具缘纹孔较为密集，管间纹孔呈互列方式，绝大多数纹孔具有纹孔膜，干燥后的小径木大青杨锯材均有不同程度的皱缩现象产生，其中连续加热干燥试验锯材的皱缩现象最严重，波动2时次之，波动6时干燥试验锯材的皱缩缺陷最小。

The differentiation states of costae indicates the ways they absorb and transport water, and their ability adapting to the dry conditions, which was elucidated by the following examples: Brachythecium plumosum, because of its thin cell-walls in the costae and the absence of hydrome, assistant and steroid cells, can absorb water and nutrition under shady and moist conditions; Plagiomnium rostratum, though often grows in shady and wet condition, has hydrome and steroid cells, a feature similar to those of xeric mosses, which endows it to grow in the conditions with periodical drought stress during its life cycle; Hygrohypnum luridum is characterized by its slender leaves with only one layer of cells, the thin cell-walls, the absence of filaments on the leaf surface, and the fewer layer cells in the costae, the absence of hydrome and steroid cells. These features make it adaptable to aquatic environments. For Pogonatum inflexum and Atrichum undulatum, their ventral surfaces covered with lamella, while for Racomitrium japonicum, Thuidium cymbifolium, Macromitrium ferriei, Diphyscium fulvifolium, Barbula unguiculata and Ceratodon purpureus, their leaves are strongly mammillose or papillos. Such appendiculate structures made them adaptable to thy conditions.

例如，荫湿生环境下的羽枝青藓Brachythecium plumosum，其中肋细胞胞壁较薄，无导水主细胞和副细胞的分化，也没有厚壁细胞分化，能够在阴湿环境下吸收水分和养分；钝叶匍灯藓Plagiomnium rostratum具有与旱生藓类植物相似的中肋结构，叶片较厚，中肋具导水主细胞，中肋背面具厚壁细胞，这些特点使该种藓类植物能够分布于间隙性干旱胁迫的环境中；水灰藓Hygrohypnum luridum叶片纤细柔弱，仅1层细胞，细胞胞壁薄，叶表无附属结构，中肋细胞层数少，无导水主细胞分化，也没有厚壁细胞，这些特点使得水灰藓'能够生长在水生环境中；东亚小金发藓Pogonatum inflerum和波叶仙鹤藓Atrichum undulatum的叶腹面覆盖着栉片，东亚砂藓Racomitrium japonicum、大羽藓Thuidium cymbifolium、福氏蓑藓Macromitrium ferriei、东亚短颈藓Diphyscium fuhifolium、扭口藓Barbula unguiculata和角齿藓Ceratodon purpureus的叶片表面有乳头状突起或疣状物，这些附属结构使它们能够适应于旱生的环境中。

Meanwhile, result comes out that seven fossil samples are mostly evergreen Araucarioxylon, deciduous species prapably exists, but their fixed numbers of growing year are extraordinarily variant; Analysis of ariance indicates that, imposing ray cells, radial tracheid diameters-, the ratios of ray cells to radial tracheid diameters on distinguishing seven samples is doable as a whole, while not fitting for individuals.

经方差分析可以看出，利用射线直径、管胞直径和射线管胞比可以在总体上区分各标本，但对个别样本不适用；射线高度这一性状在各标本间差别很小，不能区分；结果认为：标本2和标本6的性状最相近，为相同的种类；标本1、4、7可能为同一属；对方差和CSDM曲线的综合分析认为，标本1、3、6的生长年限存在一定的区别，可能导致在方差分析上出现些许误差。

The primary sporogenous cells divided into the second sporogenous cells which would turn into microspore mother cells in a microsporangium. The cytokinesis in meiosis of the microspore mother cells was of modified simultaneous type, forming the decussate, isobilateral or T-shaped tetrads.

初生造孢细胞分裂形成次生造孢细胞，次生造孢细胞再转化为小孢子母细胞，小孢子母细胞减数分裂的胞质分裂为修饰性同时型，四分体排列方式为交叉型、对称型或&T&型，成熟花粉粒二细胞型，开花时散出。

Deep research and comparison show that, besides the centrarch xylem, H. reflexa has G-type tracheids. Upon and between the annular secondary thickenings, the lignified layer of secondary cell wall bears irregular simple perforations of small diameter and high density. So these perforations have the characters of S-type tracheids. The robust xylem strand and dense perforations indicate the strengthened water-conducting capacity.

深入的研究和比较表明H.reflexa的木质部除为心始式外，管胞为G-型，次生壁的木质化层具有不规则的简单穿孔，穿孔直径小，密度大，分布在环纹次生加厚带和其间，兼有S-型管胞穿孔的特征；粗壮的木质部束和密集的穿孔表明较强的输导能力。

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。