胞状的

The ultrastructural changes during the development of sieve element companion cell complex (SE/CC complex) in Populus deltoides were investigated using electronic microscopy. The result showed that SE and CC tome from the same secondary phloem mother cell. The development of sieve element went through three stages, i. e. immature, mature, and degenerate stage. In immature stages the sieve element presented radial expansion, cell wall thickening, and production of sieve plastid and P-protein. The cytoplasma selectivly autolysed in mature stage. At the same time, karyoplasm was dispersed, and nuclear envelope was not clear, or karyoplasm was disorgnized, and nuclear envelope was clear. The karyopalsm finally turned into P-protein. In degenerate stage, the cytoplasm completely disappeared, and the function was lost.

利用电镜技术研究美洲黑杨次生韧皮部筛管和伴胞发育过程中细胞超微结构的动态变化，观察到筛管和伴胞由同一个次生韧皮部衍生细胞分裂分化形成筛管约发育历经未成熟期、成熟期和衰退期的变化未成熟期筛管分子表现为细胞的径向扩展、壁的增厚、筛管质体和P-蛋白质的产生；成熟期筛管分子细胞组分发生选择性自溶，细胞核核质弥散状，核膜不清晰，或核膜清晰而核物质降解，最后细胞核完全解体转化为P-蛋白质类的物质；衰退期筛管分子细胞质完全解体消失，失去功能。

Neuronal cell bodies and fibers with moderate mGluR7-LI were seen in the olfactory bulb,anterior olfactory nucleus,piriform cortex,septofimbrial nucleus,bed nucleus of the strial terminalis,lateral hypothalamic area,paraventricular hypothalamic nucleus,supramammillary nucleus,medial and lateral mammillary nuclei,most part of the thalamus,medial and lateral geniculate bodies,nucleus of the optic tract,red nucleus,substantia nigra,interpeduncular nucleus,pontine nuclei,lateral parabrachial nucleus,superior olivary complex,nucleus of the trapezoid body,motor nucleus of the trigeminal nerve,facial nucleus,ambiguus nucleus,cochlear nucleus,vestibular nuclei,nucleus of the solitary tract,hypoglossal nucleus,prepositus hypoglossal nucleus,medullary reticular formation,Purkinje cells of the cerebellum,nucleus raphe obscurus,intermediolateral nucleus of the spinal cord,Onuf′s nucleus and lamina X of the spinal cord.

呈中等强度染色的神经元胞体和纤维见于嗅结节、前嗅核、梨状皮质、隔伞核、终纹床核、下丘脑外侧区、下丘脑室旁核、乳头体上核、乳头体内、外核、丘脑大部分核团、内外侧膝状体、视束核、红核、黑质、脚间核、桥核、臂旁外侧核、上橄榄复合体、斜方体核、三叉神经运动核、面神经核、疑核、耳蜗核、前庭核簇、楔束外核、孤束核、舌下神经核、舌下神经前置核、中缝隐核、延髓网状结构、小脑蒲肯野细胞层、脊髓中间带外侧核、Onuf核和中央管周围灰质。

The formation of silique dehsicence susceptibility was investigated in terms of water content, synthetic rate of ethylene, enzyme activity of exo polygalacturonase and end cellulase , cell alteration in dehiscence zone in silique and silique dehiscence susceptibility during silique development.

从油菜角果发育过程中角果含水量、乙烯合成速率、外切 PG 酶和内切纤维素酶活性，以及角果裂区切片观察等方面研究了角果开裂敏感性形成的原因⒚花后50d 的角果果柄端壳状果瓣和线状果瓣间的裂区薄壁细胞膨大，在高倍光学显微镜下可见胞间空隙开始形成⒚此前6d 内乙烯合成速率迅速上升并出现第二次合成高峰，与之同步发生外切 PG酶和内切纤维素酶活性急剧上升，而乙烯合成第二高峰出现于角果含水量低于80％以下⒚由此看来，角果失水引起乙烯合成第二高峰出现，从而导致水解酶活性上升，最终导致果瓣裂区薄壁细胞膨大，分离和胞间空隙形成及角果开裂敏感性产生

RESULTS: Microscopically, the lesion consisted of abundant collagen fibrils, proliferated histiocytes and numerous infiltrated plasmocytes, lymphocytes and eosinophilic granulocytes. Fusiform or polygonal histiocytes had abundant, granular, eosinophilic cytoplasm or clear cytoplasm containing radially oriented strands or resembled xanthoma cells. Emperipolesis of numerous small lymphocytes was seen in the cytoplasm of some large histiocytes.

结果： 镜下可见丰富的胶原纤维和组织细胞增生以及大量浆细胞、淋巴细胞和嗜酸粒细胞浸润，组织细胞呈梭形、多边形，胞质嗜酸性颗粒状、放射条纹状或泡沫状，一些大组织细胞质内有多量小淋巴细胞。

RESULTS摘要: Microscopically, the lesion consisted of abundant collagen fibrils, proliferated histiocytes and numerous infiltrated plasmocytes, lymphocytes and eosinophilic granulocytes. Fusiform or polygonal histiocytes had abundant, granular, eosinophilic cytoplasm or clear cytoplasm containing radially oriented strands or resembled xanthoma cells. Emperipolesis of numerous small lymphocytes was seen in the cytoplasm of some large histiocytes.

结果摘要：镜下可见丰富的胶原纤维和组织细胞增生以及大量浆细胞、淋巴细胞和嗜酸粒细胞浸润，组织细胞呈梭形、多边形，胞质嗜酸性颗粒状、放射条纹状或泡沫状，一些大组织细胞质内有多量小淋巴细胞。

The 16S rDNA sequence of the 4 strains were aligned with the 16S rDNA sequences of other species in genus Burkholderia,and the polygenetic tree was produced by using a Clustal V and treeview software.The results showed that P.cocovenenans subsp.farinofermentans was in a high homology with Burkholderia gladioli and Burkholderia cocovenenans, and they formed an independent phylogenetic clustal of genus Burkholderia.Key words: P.cocovenenans subsp.farinofermentans,16S rDNA sequcence,phylogeny

树状图及不同菌种之间的同源性比值：椰酵假单胞菌(P.cocovenenans subsp.farinofermentans)与唐菖蒲伯克霍尔德氏菌、椰毒伯克霍尔德氏菌的亲缘关系非常近，与其它菌种的亲缘关系相对较远，椰酵假单胞菌、唐菖蒲伯克霍尔德氏菌和椰毒伯克霍尔德氏菌可归属于一个独立的系统发育系。

PRL-LIR positive perikarya were mainly seen in nucleus suprachiasmaticus, nucleus paraventricularis preopticus, nucleus supraopticus, nucleus hypothalamus paraventricularis, nucleus periventricularis arcuatus and nucleus accumbens. PRL-LIR fibers and their terminals were detected in paleostriatum and median eminence.

结果，PRL阳性胞体主要分布在视交叉上核、视前室旁核、视上核、下丘脑室旁核、弓状核和伏隔核，旧纹状体、正中隆起存在大量阳性纤维末梢，在侧脑室腹侧的室管膜和脑基底神经胶质板上也存在PRL阳性神经元。

The histopathology showed that the tumors were rich in cells arranged in fascicles with bipolar and spindled processes. The nuclei showed minor pleomorphism. A few tumor cells were centered on the vessels with a nuclear-free zone that was characteristic of ependymoma.

病理组织学上肿瘤富于细胞，排列成束状、交织状，细胞胞突细长双极，核异型性小，少数肿瘤细胞围绕血管周围形成室管膜瘤的无核区结构。

It was shown by further research that the formed tungsten oxide had an obvious layer-like structure, where from outer to inner layer the valence of tungsten increased and the reduction degree decreased. The carbonization of W depended on the replacement of W atom at the center of the body-centered cubic by C atom and the minor adjustment of C atom position and the lattice parameters.

深入研究表明，氧化钨碳还原颗粒具有明显的层状结构，自外到内钨的化合价递增，还原程度降低；钨的碳化是碳原子替换体心立方钨晶胞的中心钨原子，然后碳原子转换到钨原子点阵间隙再经晶胞常数微调而形成。

Results: 1 The analysis revealed that GAP-43 immunopositive neurons in rats were localized in all the layers of lateral geniculate nucleus and the layers II -VI of visual cortex area 17,and GAP-43 is stained by a ring and dot figure and brown-yellow colour in cytomembrane ; 2, In the critical period, gene expression concentration and number of GAP-43 immunopositive neurons, in both the lateral geniculate nucleus and the visual cortex area 17, received from the deprived eyes, are reduced.

结果：1、GAP-43在正常大鼠视觉系统表达主要见于外侧膝状体全层和视皮质17区Ⅱ—Ⅵ层神经元胞膜中，呈环状或点状棕黄色免疫阳性反应；2、在敏感期内剥夺眼对侧外侧膝状体和视皮质17区GAP-43表达的免疫阳性神经元染色变淡(P＜0.05)，且免疫阳性神经元数目减少(P＜0.05)。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐