致病

The progress levels of symptoms after pathogen infection showed that interaction of gray leaf spot pathogen and host has differentiation or polymorphism. The progress levels of symptoms is different.The aggressively has polymorphism. The pathogenicity of different isolates in same cultivar has polymorphism, or the host reaction type of same isolate in different cultivars has polymorphism.The host reaction type has differentiation. There are seven types of host reaction in cultivar and inbred after infected by GLS pathogen:Rectangular lesion without chlorotic halo, Rectangular lesion with chlorotic halo,Irregular lesion without chlorotic halo,Irregular lesion with chlorotic halo, Spot lesion with chlorotic halo,Rectangular and irregular lesionand Rectangular and spot lesion. The host reaction type is coalesced lesion when disease severely. Frequency of each reaction types is different.

通过对玉米灰斑病菌侵染后的显症过程的系统观察，可在组织水平上说明该病菌与寄主互作反应存在分化或多样性：玉米灰斑病菌不同菌株侵染后显症过程表现出明显的差异；玉米灰斑病菌在侵袭力上存在多样性，菌株间对同一种品种的致病性表现多样化，或者同一菌株对不同品种侵染引起的寄主反应表现为多样性；病斑反应型的分化，玉米灰斑病菌侵染玉米品种或自交系后，主要有7种病斑反应类型，即RH型、RN型、IRH型(不规则形具褪绿晕圈病斑)、IRN型(不规则形无褪绿晕圈病斑)、SH型、RI型(长矩形与不规则形混合病斑)和RS型(长矩形与斑点形混合病斑)，若发病严重，病斑连成片，而且这些反应类型出现的频率也不同。

The pathogenic organisms include viruses, bacteria, fungi, protozoa, helminths, medical arthropods, which cause disease or transimit pathogenic organisms to human.

生物病原包括病毒、细菌、真菌、原虫、蠕虫、致病或媒介医学节肢动物。

To obligatory pathogens like Pseudoperonospron cubensis, it could not only hold back the infection of hypha,but also heal the spot where infected by hypha.(8)The study on mechanism of action showed that the crude extract of S-5210 had a strong inhibition of the mycelia growth and spore germination which led to some abnormal growth such as the twisted and inflated mycelia, the abnormal increased branching, the broken mycelia wall and leakage of cytoplasm from hyphal tips.Alao the spores and the rate of germination were decreased, the germ tube was malformed in shape et al.The pathogenicity of hypha and spore was weakened.

8S-5210 活性产物的拮抗机理初步研究表明：S-5210 粗提物能强烈抑制病原菌菌丝的生长和孢子的萌发，引起病原菌菌丝扭曲或膨大、分枝增多、分枝顶端细胞壁破裂、原生质外溢；分生孢子数减少，孢子萌发率降低，芽管畸形等异常现象；菌丝和分生孢子致病性减弱。

Objective To explore the differential diagnostic value of glueose-6-phosphatc isomerase（GP1） in rheumatoid arthritis and Other autoimmune diseases and to study the mechanism of GP1 in RA.

目的 探讨葡萄糖-6-磷酸异构酶在类风湿关节炎诊断及与其他自身免疫性疾病鉴别诊断中的价值，并对GPI在RA中的致病机理进行初步分析。

So far, because of the components of AN are very complex, the mechanisms of AN-induced cytotoxicity to cause cell aberrations and oral diseases are not clearly understood. The purpose of this study is trying to investigate the roles of two check point kineses: Chk1/Chk2 in the ANE-induced geno- and cytotoxicity.

但由於槟榔成分过於复杂，对於槟榔成分究竟是如何造成各种细胞变异甚至口腔疾病的详细致病机转目前并不清楚，因此本篇研究的主要目的即是针对细胞内两种细胞周期检查点Chk1/Chk2在槟榔成分所造成的基因与细胞毒性中所扮演的角色进行探讨。

Comprehensive survey "黄帝内经", regardless of is to the psychological disease pathogenesis factor, to the psychological disease diagnosis, preventing and controlling and the mental healing significance, all some many penetrating elaboration, and has formed the certain theory system.

综观《黄帝内经》，无论是对心理疾病的致病因素，还是对心理疾病的诊断、防治和心理治疗的意义，都有许多精辟的论述，并已形成一定的理论体系。

Thirty-one isolates of Fusarium oxysporum were achieved from the samples of watermelon roots and soils collected in Shandong, Hubei, Anhui, Jiangshu, Hunan, Henan and Hebei. Their pathogenicity was identified by means of the co-culture methos.

从我国7个西瓜产区（山东、湖北、安徽、江苏、湖南、河南及河北）的西瓜枯萎病病株和病土样中分离获得31株西瓜枯萎病菌株，采用幼苗共培养法测定各菌株的致病力。

Zhongshu 4. They performed mild mosaic and synergism instead. Different ToMV-N5-induced symptoms in two varieties may be the primary reason of dissimilar ToMV-N5 infections mediated by CMV-Fny.

ToMV-N5在两个番茄品种上引起的症状差异可能是导致CMV-Fny对其致病产生不同调控作用的原因。

Indoor mites worms allergy patients is one of the main causes.

室内的螨虫是过敏症患者的主要致病原因之一。

Indoor mites worms allergy sufferers is one of the main causes.

室内的螨虫是过敏症患者的主要致病原因之一。

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。