对抗病

Tauschii varieties. The diversification analysis of Ae. tauschiis resistance to wheat sharp eyespot according to the relative resestance index of four phases revealed that, seventy-six varieties have a higher resistance to R. cerealis and would be used in wheat engineering in future. Investigating the resistance of Ae.

并根据所有供试材料在不同生长期和不同年份的相对抗病指数，对所调查的材料进行抗性多样性聚类分析，综合分析得出共有76份材料表现为较强的纹枯病抗性，是我国小麦改良育种很好的纹枯病菌抗源。

Thecertification of the DNA markers related to resistance to fusarium wilt wasalso discussed.

此外，对与西瓜枯萎病抗性有关的片段和与感病性有关的片段的问题和抗病标记的验证和筛选问题也进行了讨论。

So the technology of introduction of exogenous DNA into tomato after pollination not only feasible within species but also feasible in over-distance hybridism and excellent gene can been transferred to the cultivate variety.

试验还选用野生种醋栗番茄作供体进行了远缘关系的分子杂交试验，以克服杨晓锋：对外源DNA导入番茄的研究远缘杂交不亲和性，将野生种抗病性强的优良性状转移到受体中来，重组优良基因培育新品种材料也获得了较为满意的效果。

26 study factors (immure,trace elements and salivary nature elements) of 60 RAU patients were analyzed by non-condition logistic regression and the risk ratio of every study factors were calculated.

摘 要：本文对60名RAU患者的与致病有关的免疫、微量元素、唾液天然抗病成份等26个研究因素、应用非条件Logistic回归分析方法，计算出研究因素的致病危险度。

Isolates from watermelon-growing areas were classified into 3 races like race 0, race 1 and race 2 which were 8 (17.4), 30 (65.2), and 8 (17.4%), respectively. Pathogenecity of race 0 isolates are weakest which only make Sugar Baby susceptible; isolates of race 1 are intermediately pathogenetic, they make Sugar Baby and Charleston susceptible Gray but Calhoun Gray resistant; isolates belonging to race 2 possess the strongest pathogenecity, which make 3 hosts susceptible. Isolates of race 0 mainly distribute over the central and southern Hebei province, whereas race 2 cover the middle and north of Hebei, isolates of race 1 exist in the whole watermelon-growing areas in Hebei province.

根据鉴别寄主对供试菌系的抗感反应，将46个西瓜枯萎病菌系划分为0号、1号和2号3个不同的生理小种，分别包括8，30和8个菌系，占供试菌系的17.4%、65.2%和17.4%；0号生理小种菌系致病性最弱，仅使品种Sugar Baby感病，以冀中和冀南居多；1号生理小种菌系致病力中等，使鉴别寄主Sugar Baby和Charleston Gray感病，而使Calhoun Gray抗病，分布在整个河北省西瓜种植区；2号生理小种的菌系致病力最强，使3个鉴别寄主均能感病，主要分布在冀中和冀北。

The discovery of RCOIl not only provides insight in the study of the jasmonate signal transduction pathway in monocotyledon, but is also helpful in regulating crop' s defense against insects and pathogens, and improving their tolerance to stresses.

该基因的发现对於探索单子叶植物的莱莉酸信号转导途径，以及研究该途径在农作物中的抗虫抗病和抵抗恶劣环境等方面的作用都有重要意义。

In order to develop a safe and effective immunoadjuvant to enhance the immunity and resistance of animals against infection, a novel CpG Oligodeoxynucleotides containing 11 CpG motifs was synthesized and inserted into the VR1012 plasmid, designated as VR1C. Then the recombinant VR1C was entrapped with Chitosan nanoparticles prepared by the method of ionic cross linkage, and employed to inject muscularly 3-weeks old Kunming mice; the blank VR1012 packed with CNP and saline were used to inoculate mice as the control groups. 28 days after inoculation, all mice were orally fed with 0.4ml 2x108CFU/ per mouse virulent hemorrhagic enteritis E. coli to challenge the resistance against infection.

为研制安全高效免疫调节剂增强动物免疫抗病能力，本实验设计合成含11个C pG基序的寡聚核苷酸，重组构建含CpG的VR1012质粒(VR1C)；制备壳聚糖纳米颗粒包裹重组质粒(CNP-VR1C)，肌注接种3周龄昆明小白鼠，设壳聚糖包裹空质粒和生理盐水对照组；接种后28天口服大肠杆菌攻毒观察小鼠天然免疫的变化和对强毒感染的抵抗力，Sandwich ELISA测定血清免疫球蛋白和白细胞介素含量。

There were different leaves structure between resistant and susceptible cultivars, the leaves structure studied included thickness of leaves, No.of palisade tissue, density of palisade tissue, thickness of the first line palisade cell, thickness of the second line palisade cell, density of inter-epidermal cell and density of exter-epidermal cell.

对大豆灰斑病抗病品种和感病品种的叶片组织结构，主要包括栅栏组织层数、栅栏组织密度、上下表皮细胞密度、蜡质含量及叶比重等，进行了比较研究。

A series of interactions such as nematode pathogenicity, host susceptibility and host resistance could form due to parasitism.

寄生过程引起的根结线虫与寄主植物之间的一系列互作反应，包括根结线虫对寄主植物的致病现象，寄主植物的感病反应和抗病反应。

Virulence test demonstrated that the recombinant AHL-Lactonase has a strong anti-pathogenic activity to Erwinia cawtovora, and the addition of AHL-Lactonase to the medium of pathogen could reduced the activity of pectate lyase, prctin lyase, cellulase and polygalacturonase after 20h.

致病性检测表明，重组AHL-Lactonase对胡萝卜软腐病菌具有较强的抗病活性，在致病菌培养基加入AHL-Lactonase培养20h之后，培养基上清之中果胶酶(pectate lyase and prctin lyase，PL)、纤维素酶(cellulase，Cel)和多聚半乳糖醛酸酶(polygalacturonase，PG)的活性都存在不同程度的减小。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。