不致病的

Those not causing disease are not pathogenic factors, but they are causa morbi if causing disease.

未导致疾病的致病因素不是病因，已经引起疾病的致病因素是病因。

Among them, C hypha is more developing, compared with others, which can produce a great deal of branch spore directly.

结果表明，4种病原菌均具有较强的致病力，但它们之间的致病力差异不显著。

This is the first delineation of an aspartic acid substitution in new site of the al chain causing nonlethal osteogenesis imperfecta.

COL1A1基因突变也是中国人群中成骨不全致病原因之一，现发现的突变属成骨不全一个新的致病基因突变。

The results revealed that there was nosignificant difference between the symptoms produced by the mutant and thewild type strain by directly injecting the bacteria into mature turnip leaves,however,the mutant was nonpathogenic by inoculations with leaf-clippingand-spraying methods.

应用不同的接种方法对胞外多糖突变体的致病性进行了分析，发现突变体通过注射接种仍能产生与野生型相同症状，但通过喷雾和剪叶接种却完全丧失了致病能力，说明甘蓝黑腐病菌产生的胞外多糖可能在致病过程的早期阶段起作用，但对症状的产生不是必须的。

And it also showed that the inheritance of the growth-rate and pathogenicity to cotton seedlings of XC-6 could not be inherited steadily in zoospore progenies and oospore progeny, but the colony morphology and homothallic character of XC-6 could inherited steadily in both asexual and sexual progenies, which suggested that the inheritance and variation of the above characters might be related to long-selfing and hybridization in species.

同时，XC-6生长速率、对棉苗的致病力、菌落形态及同宗配合遗传和变异特性研究表明，其生长速率和对棉苗的致病力性状在单游动孢子后代和自交后代均不能稳定遗传，但菌落形态和同宗配合特性在单游动孢子后代和自交后代均能稳定遗传，提示上述性状在单游动孢子后代和自交后代的遗传和变异特性可能与菌株长期自交和种内杂交有关。

And it also showed that the inheritance of the growth-rate and pathogenicity to cotton seedlings of XC-6 could not be inherited steadily in zoospore progenies and oospore progeny, but the colonyKey words: Phytophthora boehmeriae, Biological character, Inheritance

同时，XC-6生长速率、对棉苗的致病力、菌落形态及同宗配合遗传和变异特性研究表明，其生长速率和对棉苗的致病力性状在单游动孢子后代和自交后代均不能稳定遗传，但菌落形态和同宗配合特性在单游动孢子后代和自交后代均能稳定遗传，提示上述性状在单游动孢子后代和自交后代的遗传和变异特性可能与菌株长期自交和种内杂交有关。

The results showed:among the 7 isolates, five isolates of HY3、GY1－3、ZJ1－1、HP1、FC3 had same colony shape, irregular shape, liquidlike, slimy, opacity with smooth surface;the other two isolates had same shape, irregular shape, dry, opacity with coarse surface. By inoculating eucalyptus with the 7 isolates, the plants were infected apparently, and the young plants of eucalyptus in control experiment with tap water were not infected. By cultivating eucalyptus cuttings with the bacterial suspensions without EPS, the incidence of disease was very distinct,but compared with the former bacteria suspension,the incidence of disease has decreased at different degrees. By screening out two isolates of strong pathogenicity and two isolates of weak pathogenicity from the 7 isolates,making the bacterial suspensions with them to inoculate the young plants of eucalyptus, two treatments of cutlings and ramets with rats were set with 5 repetitions in every treatment, the results of data analysis showed: for the cutlings, the bacterial contents in upper and middle parts、upper and lower had significant difference;for ramets with roots, the bacterial contents in upper, middle parts, lower had significant difference between each other; For both the cutlings and ramets with roof, the bacterial contents in xylem and phloem had significant difference. The interaction between vertical and horizontal parts for the bacterial content had significant difference. For the two isolates of HY3 and 93B which were screened out at last,their activities of the cellulase were: 1.955ug/ and 1.288ug/ respectively, and had significant difference; the activities of pectase were: 1.325 ug/and 1.24ug/ respectively, and had no significant difference. The content of EPS extracted from the two isolates of HY3 and 93B was very different: 7.08x10-8ug/cell and 5.17x10-8ug/cell.

结果显示：7个菌株中，其中5个菌株HY3、GY1－3、ZJ1－1、HP1、FC3的菌落形态相同：不规则形状、流体、粘性、不透明、表面光滑；另外2个菌株93B、GN1菌落形态相同：不规则形状、干燥、不透明、表面粗糙；用7个菌株接种剪根桉树苗，发病情况非常明显，而自来水对照实验中桉树苗却不发病；无EPS菌悬液培养桉树剪根苗，发病率也很明显，但是相比原菌液，则发病率有不同程度的下降；从7个菌株中间筛选出来2个强致病性菌株和2个弱致病性菌株，用它们配制菌悬液培养桉树苗，设置剪根和不剪根两个处理，每个处理设置五个重复，数据分析结果显示：对于剪根苗，上部和中部、上部和下部的含菌量有显著的差异，中部和下部含菌量差异不显著；带根苗，上部、中部、下部含菌量彼此之间差异显著；不管是剪根苗还是带根苗，木质部和韧皮部含菌量之间的差异都非常显著；上中下与木韧交互作用中，含菌量差异非常显著；最后筛选出来的强弱2个菌株HY3和93B，它们的纤维素酶活性分别为：1.955ug/和1.288ug/，具有显著的差别；果胶酶的活性分别为：1.325 ug/和1.24ug/，没有显著的差别，而且HY3和93B两个菌株细胞分泌的胞外多糖的含量差异很显著，分别为：7.08×10-8ug/cell和5.17×10-8ug/cell。

Particularly in early stages of infestation with the causative parasitic mites, the symptoms of scabies have an unspecific character and can be easily confused with the manifestations of skin disorders such as eczema, seborrhea, chicken pox or other viral rashes.

特别是在早期阶段的侵扰与致病寄生虫螨，疥疮的症状有一个不明确的性质，可轻松的表现形式相混淆的皮肤病，如湿疹， seborrhea ，水痘或其他病毒性皮疹。

Systematic infection of mice is used as a model to test the virulence of several mutants. According with their ability to form hyphae, nonfilamentous mutant is avirulent, and hyphae defective mutants have decreased virulence.

用系统感染小鼠模型分析这些突变株的致病能力，同它们形成菌丝的能力相一致，野生菌的致病能力最强，形成菌丝弱的突变株致病能力也减弱，不能形成菌丝的cph1 efg1突变株和crk1则无毒性。

Identification of extensive phenotypic information to 6 pare cultures and detection of the mol% G+C ratio of the DNA to representative strains, showed that the examined bacteria belonged to a new morphovar of Acinetobacter junii, and was designated as Acinetobacter junii Morphovar Ⅰ. In addition, serotype, antibiotic sensitivity and pathogenicity of isolates were studied, the results showed that the 6 strains have the same K-antigen and O-antigen, there arc no obvious differences in sensitivity and resistance to used 37 antimicrobial agents between strains, and have strong pathogenicity to experimental stone bonder and Bastard halibut.

经对6株纯培养菌在形态特征、理化特性等方面较系统的表观分类学指征鉴定及代表菌株DNA中G+C mol%的测定，表明为琼氏不动杆菌的一个新形态型并定名为琼氏不动杆菌形态型Ⅰ(Acinetobacter junii morphovar Ⅰ)；同时，对该菌进行了血清型、对抗菌类药物的敏感性及致病作用等方面的试验，初步表明此6株菌具有同种的表面及同种的菌体抗原，对供试37种抗菌类药物在不同菌株间的敏感及耐药无明显差异，对供试石鲽及牙鲆均具有较强的致病作用。

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。