寄主

The results show that the proximity of grassland or shrubland areas to human settlements, derived from the remotely sensed data, was a major risk factor for HAE related to the spatial distribution of suitable habitat for the small mammal intermediate hosts.

遥感数据分析的结果显示，人类居住地附近的草地或灌木是HAE传播的一个主要危险区域，从空间分布上看，这些区域是小型哺乳动物等中间寄主的聚集处。

Bioassaying of squash silverleaf assigned the whitefly from Beijing (host: cotton and sweetpotato) and Xinjiang to B biotype. However, populations from Fujian and Guangxi without silverleaf symptom were considered as non-B biotype.

银叶生测实验表明：北京甘薯、棉花和新疆茄子上的烟粉虱为害西葫芦后可引起寄主的银叶，表明属B型烟粉虱；福建甘薯和广西南瓜上的烟粉虱种群在西葫芦上为害不呈银叶属非B型。

According to a series of reaction of powdery mildew to different host, it could be confirmed that the disease was caused by Sphaerotheca fuliginea. There were two races, race 1 and race 2France, of which race 2 France was the dominant one.

根据一系列甜瓜白粉病菌鉴别寄主的抗感反应，初步确定北京地区瓜类蔬菜白粉病由Sphaerotheca fuliginea所致，且存在两个生理小种，即小种1和2France，优势生理小种是小种2France。

Commassie brilliant blue staining can clearly display the different structures of Sphaerotheca fuliginea, such as germinating conidia, initial germtubes, hyphae and conidiophores, and hardly stain the host tissue, presenting a striking contrast between fungus and host tissue.

考马斯亮蓝组织透明染色方法可以清楚观察到白粉病菌的5个发育阶段，即萌发的分生孢子、初生芽管、胞间菌丝、分生孢子梗和后期菌落。考马斯亮蓝几乎使寄主组织不着色，不产生背景色干扰，而菌体变深蓝色。

Infection occurs during the flowering stage of the host plant, when its developing ovary comes into contact with infectious sporidia, a stage in the lifecycle of the pathogen Tilletia indica.

寄主植物在开花期受侵染，病原菌Tilletia.indica生活史某一阶段产生的孢子侵入发育的子房。

Those living symbiotically on the root nodules of various leguminous plants.

共生固氮菌侵入寄主植物的根毛，在该处繁殖并促使根瘤形成。

Often cited examples of sympatric speciation are found in insects which become dependent on different host plants in the same area.

经常提到的同域物种形成实例，是在同一地区的、依赖于不同寄主植物的昆虫中发现的。

Tabacum, the relative growth rate, efficiency conversation of ingestion and digestion of larvae on N.

这些结果表明，黄花烟草较不适合烟夜蛾的繁殖和种群增长，其寄主适合性不如普通烟草。

It is understandable, then, that scientists strongly resisted the idea first put forward by Howard Temin that in a virus which caused cancer in chickens, rous sarcoma virus, the virus particles contained RNA but replicated in the cell as DNA.

因此有个事实是可以理解的----科学家反对Howard Temin首先提出的引起鸡癌的rous sarcoma的病毒粒子含RNA，但在寄主细胞里以DNA复制的观点。

In vitro transcripts from RNA5 wild type clone were co-inoculated into Tetragonia expansa with the RNAs of Hu3 isolate containing RNA1, 2 and 3. Following RT-PCR and Northern blotting results shows RNA5 could be biologically replicated in the leaves. The virus concentration of the isolate containing RNA5 in T. expanxa was higher than that of the isolate Hu3 evaluated by ELISA detection.

野生型RNA5的体外转录物与含Hu3(RNA1+2+3)分离物的总RNA混合接种番杏叶片的RT-PCR和Northern blot检测结果都表明，野生型RNA5能够在接种寄主体内复制，并且ELISA检测证明含有RNA5的番杏病叶中病毒浓度高于不含RNA5病叶的病毒浓度。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。