查询词典 Parasitica

The population diversity of chestnut blight fungus, Cryphonectria parasitica and its double strand RNA were studied in this thesis.dsRNA virus of Cryphonectria parasitica was studied by use of biological assay and gel electrophoresis.

本研究以栗疫病菌为实验材料，进行栗疫病菌及其dsRNA的群体多样性研究。

Chestnut blight fungus, Cryphonectria parasitica, hosted in a wide range of plants and chestnut blight was widely scattered in Guangxi. It is proposed that C. parasitica is not necessarily to he decided as a quarantine organisms in Guangxi forestry.

板栗疫病菌寄主范围广，此病在广西的分布已经相当广泛，但板栗疫病的病原菌不必补充为广西壮族自治区林业检疫性有害生物。

Hypoviruses are a group of unencapsidated, cytoplsmically self-replicating plus sense RNA viruses found in the chestnut blight fungus Cryphonectria parasitica.

低毒病毒是一类存在于板栗疫病菌细胞质中自主复制的无衣壳正链RNA病毒。

Six strains of Phytophthora parasitica var. nicotianae were isolated from disease tobaccos in Yongzhou and Ningxiang from heavy disease plots;. Pathogenicity was tested to six strains, the results shows the strain of phy3 have strong pathogenicity. We also studied the effect of several solutions for producing zoosporangium in Artificial culture condition, the result shows the hyphea culture with 0.1% KNO3 produced the most quantity of zoosporangiums.

2001～2003年，从湖南永州和宁乡等地发病重的田块采集病株共分离到烟草黑胫病菌(Phytophthora parasitica var.nicotianae)菌株6株，经离体叶片致病力筛选，烟草黑胫病菌株phy3为强致病力菌株，病情指数达到89％；并在实验室条件下，研究了几种溶液诱导孢子囊的产生效果，结果证明经0.1％KNO，处理产生孢子囊最多。

The actinomyces was idicntified as a new species of the Microsircplosporu Its antifungal spectrum 024-antibiotic includes many plantpathogenic fungi, such as Glomerella cingulata, Fusarium gramiaearum, Helmmthosporiuin sativitnt,/iotrvosphticriu dothidea, Alternaria xolani, Endothia parasitica etc..

本文针对防治小麦纹枯病的上百种生防放线菌进行筛选后，选择出目标菌株024，随后对它的菌种的初步鉴定、初始发酵条件与最适发酵条件进行了探索，并对024放线菌所产抗生素的纯化、理化性质、发酵液的防治效果等内容进行了研究。

DsRNA viruses of C. parasitica from east of China were divided into 4 types on the basis of electrophoresis patterns.

采用生物学测定和凝胶电泳对栗疫病菌的dsRNA进行研究。

The results indicated there might be a high resistance risk for the Phytophthora parasitica var.

研究结果显示，烟草黑胫病菌对甲霜灵具有高抗药性风险。

A novel hypovirus/Cryphonectria parasitica system was adopted to study the interaction between a virus and its host.

本文采用具有独特优点的一个崭新的病毒／宿主模型系统—低毒病毒／板栗疫病菌系统来研究病毒与宿主的相互作用。

Ten years wide investigation and research on the characteristics and pathogenicity of cryphonectria parasitica showed that, Cryphonectria parasitica existed widely in the distributing areas of Castanea mollissima, and that it belonged to weak parasite, only lived on the weak and dying branchs, sprouts, and soon. Cryphonectria parasitica was not main and direct death cause of Castanea mollissima, and the dead parts had no great influence on the growth of whole tree.

经过10余年对栗疫病发生特点和致病性的大量调查研究，结果表明栗疫菌在板栗分布区普遍存在，是弱寄生菌，在本地只寄生那些生长十分衰弱，即将死亡的板栗树干、苗木等，但栗疫菌的寄生不是这些部位死亡的主要和直接原因，而且它所寄生的部位局部死亡后对整株栗树的影响不大，因此，栗疫病在一般倩况下并非毁灭性病害。

In this study, an avirulent gene avrD (0.93 kb) isolated from a pathogenic bacteria Pseudomonas syringae PV. tomato and another avirulent gene Elicitin (0.294 kb) isolated from a pathomycete Phytophthora parasitica were ligated respectively with the non-specific pathogen induced promoters Pill and BG to construct plant expressive vectors pYH144 and pYHEt containing the two chimeric genes (Pill-avrD, BG-Elicitin).

tomato中获得的无毒基因avrD (0*93 kb)和从病原真菌Phytophthora parasitica中获得的无毒基因Elicitin(0.294 kb)分别与非专一性病原物诱导启动子Pill和BG组成含2个嵌合基因(Pill-avrD， BG-Elicitin)的植物表达载体pYH144和pYHEt。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了