多寄主的

Three kinds of virus were fand on Gladiolus in Shenyang. They were cucumber mosaic virus, bean yellow mosaic virusand tobacco mosaic virus.

阐明了染病寄主的症状与病毒毒原种类的相关性，在典型症状中，碎色症和斑驳症的植株多为受CMV侵染造成，条斑症和皱叶症主要是由BYMV侵染引起。

A model system for the relationship between parasitoid and its host was established by microoperation to study the effects of polydnavirus and venom from female parasitoid, teratocytes from parasitoid larva and the larva itself on the growth of the host.

通过显微手术建立一套研究寄生蜂和寄主关系的实验模型，以寄主体重为指标，用该模型研究了来自寄生蜂的活性物质多态DNA病毒(PDV，蜂毒，畸形细胞和幼蜂本身对寄主生长发育的影响。

Plutella xylostella larvae of a strain highly resistant to spinosad were used as hosts to rear the parasitoid Cotesia plutellae. When the parasitoids had developed to the stage of early instar larva, the host larvae were treated with 50 mg/L spinosad on the terga by topical application and then fed with cabbage leaves treated with 50 mg/L spinosad to allow the host larvae and the parasitoid larvae to develop. Three days after treatment, the parasitoid larvae inside the host were collected by dissecting the host larvae. The body fluid of P. xylostella and the bodies of parasitoid larvae were then analyzed with HPLC. Both of the active components, spinosyn A and spinosyn D, of spinosad were detected in the body fluid of host larvae and in the bodies of parasitoid larvae, and the residue concentrations were 2.79 mg/L and 0.94 mg/L in the host and the parasitoid respectively.

以对多杀菌素高抗的小菜蛾Plutella xylostella幼虫作为菜蛾绒茧蜂Cotesia plutellae的寄主，待绒茧蜂发育到1龄幼虫时，将浓度为50 mg/L的多杀菌素点滴到寄主幼虫背板上，随后让寄主幼虫取食经50 mg/L多杀菌素处理过的甘蓝叶片，寄主幼虫和其体内的蜂幼虫再发育3天后，将寄主幼虫解剖取出蜂幼虫，用高效液相色谱法对经多杀菌素处理的小菜蛾幼虫体液以及绒茧蜂幼虫匀浆液进行检测，结果多杀菌素的2个活性成分spinosyn A和spinosyn D均被检测到，两者的多杀菌素残留浓度分别是2.79 mg/L和0.94 mg/L。

Based on the investigations of rhizobia resource of Shaanxi, Gansu and Ningxia, the research applied polyphaic taxonomy to study the rhizobia isolated from Astragalus, Indigofera, Kummerowia and so on in the different levels.

本研究在陕甘宁地区豆科植物根瘤菌资源调查的基础上，利用多相分类技术，从不同层次水平系统地研究了分离自黄芪、木蓝、鸡眼草等寄主的根瘤菌。

Only 27% of canal cutters with known host ranges are generalists that feed on plants in multiple families. The proportion of generalist canal cutters is similar or lower than estimates of generalists among phytophagous insects overall.

已知寄主范围的 canal cutters 中只有27%取食跨越多个科的寄主植物，此比例接近或低於整体植食性昆虫中评估为广食性者的比例。

The phytotoxin can restrain the activities of peroxidase , polyphenol oxidase and phenylalanine ammonia lyase that existed in the tree, and so reduce the resistance of the host tree and benefit the fungus to intrude into the tree successfully.

该毒素能抑制寄主组织中过氧化物酶、多酚氧化酶和苯丙氨酸解氨酶的活性，降低寄主树木的抗御能力，从而有利于菌突破寄主的生理防御屏障而成功地侵染生长。

Any of numerous flatworms of the class Trematoda,including both external and internal parasites of animal hosts,that have a thick outer cuticle and one or more suckers or hooks for attaching to host tissue.

吸虫任一种吸虫纲的扁平蠕虫，包括以动物为寄主的各种生长于内部和外部的寄生虫，其外部有一层很厚的角质层，长有一个或多个吸口或钩子。

Any of numerous flatworms of the class Trematoda,including both external and internal parasite s of animal hosts,that have a thick outer cuticle and one or more suckers or hooks for attaching to host tissue.

吸虫任一种吸虫纲的扁平蠕虫，包括以动物为寄主的各种生长于内部和外部的寄生虫，其外部有一层很厚的角质层，长有一个或多个吸口或钩子。

The selective behaviour, fitness, cause formation and population differentation of the cotton aphid''s host biotype were studied on this project. The results showed that the cotton and cumbrits biotype aphid were existed in natural population in Nanjing .

本项目研究了南京地区棉蚜对寄主的选择与适应性、寄主专化型的成因、寄主专化型蚜在DNA水平上的多态性及棉蚜迁飞特性的种群分化、迁飞型种群的遗传响应与杂交遗传。

Phages usually have complex capsids composed of a polyhedral head, containing the nucleic acid, and a helical tail, through which nucleic acid is injected into the host.

噬菌体通常由复杂的衣壳组成一个多角体的头部，包含有核酸（ DNA 或 RNA ）和螺旋状的尾管，通过这个尾管核酸可以被注入寄主的体内。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。