病毒

A novel hypovirus/Cryphonectria parasitica system was adopted to study the interaction between a virus and its host.

本文采用具有独特优点的一个崭新的病毒／宿主模型系统—低毒病毒／板栗疫病菌系统来研究病毒与宿主的相互作用。

Uncovering the role of viral miRNAs in the pathopoiesis offers an immense opportunity not only to develope effective antiviral therapies,but also to identifying novel molecular targets for developing antiviral reagents.

揭示病毒miRNA（viral miRNA，vmiRNA）在致病过程中的作用不仅有助于开发有效的抗病毒疗法，而且能为开发抗病毒药物提供新的分子靶标。

Histopathological lesions related to swine influenza-induced lesions consisting of epithelial cells damage, airway plugging and peribronchial and perivascular mononuclear cell infiltration were present in both infected groups.

为了研究禽流感病毒H5N1是否会通过传染给猪再传染给别的哺乳动物，我们利用细胞培养基观察禽流感病毒和猪流感病毒的生长情况，并对比他们对小鼠的致病力。

An improved purification procedure for satsuma dwarf viruswithout sucrose density-gradient centrifugation was developed,by whichglobular SDV particles about 25 nm in diameted were observed with elec-tron microscopy,using only 100-200 g of Physalis floridana-infectedleaves as the virus source.

本文提出的温州蜜柑萎缩病毒提纯法，仅用100～200克病洋酸浆叶，且无需通过蔗糖密度梯度离心，在电镜下亦能看到中量直径约25nm 的球状病毒颗粒，粗提纯制剂OD_(860)/OD_(280)平均值为1.28，OD_(260)/OD_(240)平均值为1.15，初步显示出SDV 特征性紫外吸收曲线，提纯病毒产量约为4.5～11mg/kg病叶。

Pokeweed antiviral protein, a 29-kD protein isolated from Phytolacca americana, inhibits translation by catalytically removing a specific adenine residue from the large rRNA of the 60s subunit of eukaryotic ribosomes. In addition to its ribosome-inactivating ability, PAP has potent antiviral activity against many plants and animal viruses.

美洲商陆抗病毒蛋白(pokeweed antiviral proteins，PAPs)，是在美洲商陆的不同组织或不同生长阶段生成的一类具功能的单链核糖体失活蛋白(ribosome-inactivating proteins，RIP)，是天然的广谱抗病毒生物活性物资，能抗多种植物和动物病毒。

In addition, an previously unreported virus, Zygocactus virus X, was detected in 50% of collected samples. The results clearly showed pitaya plants are prevalently infected by potexviruses in Taiwan.

除此之外，意外发现检测样品中有台湾尚未发现过的病毒Zygocactus virus X，且感染率达50%，显示台湾红龙果广受病毒侵染，并且多数为多种病毒复合感染。

AIM: To detect the stability of the recombinant adenovirus plasmid containing major outer membrane protein gene from Chlamydia psittaci in HEK293 cells, to evaluate whether cross reactivity exists or not between recombinant adenovirus and positive serum of Egg Drop Symdrome, and to evaluate whether SPF chicks vaccinated with the recombinant adenovirus were protected or not when challenged with virulent CpL strain.

目的： 检测重组腺病毒质粒在HEK293细胞中的稳定性；重组腺病毒是否与减蛋综合征阳性血清发生中和反应，以及用重组腺病毒免疫SPF小鸡是否产生保护。

Results: Of all the semen samples, 8 were HCMV positive, 4 HSV-Ⅱ positive, but none were both HCMV and HSV-Ⅱ positive. HCMV late antigens were positively and HCMV early antigens negatively expressed in the spermatogenic cells of the 8 HCMV positive cases. In the 4 HSV-Ⅱ positive cases, 3 were positively and 1 weakly positively expressed. In the semen of the 12 positive cases were found large numbers of immature spermatogenic cells, with different manifestations of apoptosis, such as chromatin pycnosis, vacuoles, damaged nuclear membrane, and apoptotic bodies, but without virus infection-induced specific morphological alteration.

结果：83例精液样本PCR检测HCMV阳性8例，HSV-Ⅱ阳性4例，未发现2种病毒同时阳性病例。8例HCMV阳性病例ICC标记生精细胞HCMV晚期抗原均见阳性表达，HCMV早期抗原均为阴性表达；4例HSV-Ⅱ阳性病例ICC标记生精细胞3例阳性表达，1例弱阳性。12例病毒阳性病例均发现较多未成熟生精细胞，并有不同程度的核染色质固缩、出现空泡、核膜破损、核崩解、凋亡小体等凋亡现象，但未能找到病毒感染的特异性形态学改变。

Pigs can be infected by avian influenza and human influenza viruses as well as swine influenza viruses. When influenza viruses from different species infect pigs, the viruses can reassort (i.e. swap genes) and new viruses that are a mix of swine, human and/or avian influenza viruses can emerge.

禽流感，人流-以及猪流感病毒都会对猪造成感染；-当不同种来源的流感病毒同时感染时-病毒之间就会重新&洗牌&，从而产生一种新的&禽人猪&混合-毒。

Many swine influenza viruses are a result of reassortment and their genes are composed of human and avian and/or swine virus genes.

许多新的猪流感病毒是猪流感病毒基因和人、鸟流感病毒基因杂交后重排产生的。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。