查询词典 pathogen

Both of OsBIMK2 and OsBISERK1 genes were rapidly activated during 6h after BTH induction and maintained higher levels of tobacco brown spot pathogen Alternaria alternata.

转基因烟草T〓代植株中PR-1基因表现为组成型增强表达。抗病性分析表明，转基因烟草植株提高了对番茄花叶病毒ToMV和赤星病菌的抗病性。

Tobacco brown spot disease has been an important leaf disease in tobacco. In tobacco maturation period, this disease causes tobacco brown spot disease seriously, and makes large economic losses. Its main pathogen is Alternaria alterrrata Keisslar.

烟草赤星病是烟草的一类重要叶部病害，其主要病原菌为链格孢属真菌Alternaria alterrrata (Fties Keisslar，在烟草成熟后期危害十分严重，造成重大经济损失。

Volatiles produced by Bacillus subtilis Tpb55 strain inhibited sporulation, mycelial growth and pigment biosynthesis of Alternaria alternata, pathogen of tobacco brown spot.

枯草芽孢杆菌Tpb55菌株挥发性代谢产物对烟草赤星病菌菌丝生长、孢子产生具有抑制作用，并延缓黑色素的产生。

Ata28 strain exhibited marked suppression of Tbs3 strain which is the pathogen of tobacco brown spot on PDA plates, and the Ata28 strain had the good control efficiency of tobacco brown spot.

采用紫外线诱变Ata28菌株时，通过预备实验，计算Ata28菌株在不同诱变时间的致死率和正变率，选择该菌株的最佳诱变时间10s，20s，30s诱变；通过平板对峙培养，筛选出15个突变菌株在PDA平板上可明显抑制Tos3的生长，抑菌带高于出发菌株Ata28，抑菌带最大值达9.4 mm；在温室控病中，获得了对烟草赤星病有较好防效的突变菌株Uv-126，烟苗经Uv-126菌液处理3d后接种Tos3的防治效果达52.2％，比出发菌株Ata28的防治效果好。

Biological characteristics of the pathogen and the resistance of 13 cultivars of tea plant to tea brown blight were studied by means of natural infection in the field and artificial inoculation in vitro. Resistant cultivars and susceptible cultivars of tea plant were divided. And the resistance mechanism was researched tentatively. The findings are as follows: 1 Some biological characteristics of the pathogenic fungus The experiment result showed: the optimum temperature for the growth of fungus mycelium was from 24 to 27℃, the optimum temperature for sporulation ranged 22 to 30℃. Treated at 54℃ in 10 minutes, the spores didn't germinate. The optimum pH for the growth of the mycelium was 5.1～5.9, the optimum pH for sporulation ranged 5.0～6.0. Light had no much effect on the growth of fungus mycelium, but had much effect on the reproduction of the spore.

首先，研究了茶云纹叶枯病病菌的生物学特性；其次，通过田间抗性调查和室内人工接种鉴定，对 13 个茶树品种进行了抗病性鉴定；第三，在前人研究的基础上，对茶树抗病机理作了更深入的研究，结果发现： 1 病原菌的生物学特性病原菌的分生孢子萌发的最适温度范围为 24～27℃，菌丝生长的最适温度范围为 22～30℃；致死温度为 55℃；菌丝生长的最适 pH 范围为 5.1～5.9，孢子萌发的最适 pH 范围是 5.0～6.0；光照对病菌生长速度及分生孢子萌发影响不大，但对其产孢的影响很大，特别是有光照与无光照处理之间差异显著，光照有利于分生孢子的形成。

In recent years, Shigella flexneri was the most important pathogen of bacillary dysentery which was the common gastro-intestinal disease in summer and autumn, and there was a high incidence and serious hazards.

福氏志贺菌是近年来细菌性痢疾最为重要的致病菌，而且近年来志贺菌耐药性不断增长，其中也是福氏志贺菌耐药性增加最明显[4]。

The cultural characteristics between hypovirulent strain and high virulent strain was highly distinct.The pathogen of banana anthracnose latents on fruit, foliage, bract, blossom and stalk, stalk of plants with this disease is the most important carrier. The infection type of bannana fruit anthracnose is latent infection.

在香蕉果皮、叶、苞片、花器及假茎上均有香蕉炭疽病菌潜伏，假茎的病残体带菌率最高，为主要的侵染来源；采后香蕉果实上炭疽病侵染型为潜伏侵染型；开花后20d 的香蕉果实开始带菌，随时间延长，带菌量逐渐增加，以后各个生长阶段的带菌率与降雨量有关；炭疽病菌在果指不同部位的分布存在差异。

Gentiana spot blotch ; pathogen ; biological characteristics

龙胆草斑枯病；病原菌；生物学特性

In this study, isolation of pathogen and study on some biological characteristics was performed in several breeding sheep farms by routine methods and molecular biological methods.

本研究采用常规方法和分子生物学方法对石河子部分发病羊场疑似绵羊传染性胸膜肺炎的病例进行了病原分离及部分病原生物学特性的研究。

Objective: To investigate the pathogen and antibiotic sensitivity of serious community acquired pneumonia in our hospital and to evaluate the clinical characteristics of SCAP, aiming at providing evidence for using antibiotic.

虽然抗生素不断的研究、开发与使用，社区获得性肺炎仍然是威胁人群健康的重要疾病，特别是由于社会人口老龄化、免疫损害宿主增加、病原体变迁和抗生素耐药率上升，使社区获得性肺炎，尤其是SCAP面临许多新的问题。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。