Characterization of isolates of Flavobacterium psychrophilum associated with coldwater disease or rainbow trout fry syndrome I: phenotypic and genomic studies

Ellen Lorenzen; Inger Dalsgaard; Jean-Francois Bernardet

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Characterization of isolates of Flavobacterium psychrophilum associated with coldwater disease or rainbow trout fry syndrome I: phenotypic and genomic studies

机译：与冷水病或虹鳟鱼苗综合征有关的嗜热黄杆菌分离株的特征I：表型和基因组研究

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Isolates of Flavobacterium psychrophilum (formerly Cytophaga psychrophila and Flexibacter psychrophilus) mainly originating from clinical outbreaks of either coldwater disease (CWD) or rainbow trout fry syndrome (RTFS) were studied for selected biochemical, physiological, morphological and genomic characteristics, and compared with previously characterized French and American strains. DNA hybridization studies showed that the Danish isolates were highly related to the type strain, F. psychrophilum NCIMB 1947T. Plasmid profiling of Danish isolates and those from other European countries revealed differences, which might be related to differences in pathogenicity. European isolates originating from clinical outbreaks of either RTFS or CWD usually harboured one plasmid of 3.2 kb, whereas isolates originating from fish with different or no disease signs had other profiles. Phenotypically, the Danish isolates appeared very homogeneous and shared most characteristics with the type strain, and with French and American strains studied by other authors. Further studies on the importance of the plasmids and the proteolytic activities of the bacterium might help in elucidating possible virulence factors.

机译：精神黄杆菌（以前的嗜热食球菌和嗜热弯曲杆菌）的分离株主要来自冷水病（CWD）或虹鳟鱼苗综合征的临床暴发对（RTFS）的生化，生理，形态和基因组特征进行了研究，并与以前表征的法国和美国菌株进行了比较。 DNA杂交研究表明丹麦分离株与F型菌株高度相关。 NCIMB 1947 T 。丹麦分离株和其他欧洲国家分离株的质粒分析显示出差异，这可能与致病性差异有关。来自RTFS或CWD的临床暴发的欧洲分离株通常带有一个3.2 kb的质粒，而来自具有不同疾病征兆或无疾病迹象的鱼类的分离株具有其他特征。从表型上看，丹麦分离株表现出非常均一的特征，并且与该类型菌株以及其他作者研究的法国和美国菌株具有大多数特征。关于质粒的重要性和细菌的蛋白水解活性的进一步研究可能有助于阐明可能的毒力因子。

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《Diseases of Aquatic Organisms》 |1997年第3期|共页
作者
Ellen Lorenzen; Inger Dalsgaard; Jean-Francois Bernardet;
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中图分类水生生物学;
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1. Characterization of isolates of Flavobacterium psychrophilum associated with coldwater disease or rainbow trout fry syndrome II: serological studies [J] . Ellen Lorenzen, Niels Joslash, rgen Olesen Diseases of Aquatic Organisms . 1997,第3期

机译：与冷水病或虹鳟鱼苗综合征有关的精神黄杆菌分离株的特征II：血清学研究
2. Passive immunization of rainbow trout, Oncorhynchus mykiss (Walbaum), against Flavobacterium psychrophilum, the causative agent of bacterial coldwater disease and rainbow trout fry syndrome [J] . LaFrentz BR, LaPatra SE, Jones GR, Journal of Fish Diseases . 2003,第7期

机译：虹鳟鱼（Walbaum）的被动免疫，针对细菌性冷水病和虹鳟鱼苗综合症的病原体-精神黄杆菌
3. Colonization of rainbow trout, Oncorhynchus mykiss (Walbaum), eggs by Flavobacterium psychrophilum, the causative agent of rainbow trout fry syndrome. [J] . Vatsos I N, Thompson K D, Adams A Journal of Fish Diseases . 2006,第7期

机译：虹鳟鱼综合症的病原体是嗜冷黄杆菌（Flavobacterium psychrophilum），将虹鳟鱼（Oncorhynchus mykiss（Walbaum），卵）定殖。
4. PRELIMINARY STUDIES EXAMINING THE INFECTION OF RAINBOW TROUT EGGS WITH FLAVOBACTERIUM PSYCHROPHILUM USING CONFOCAL MICROSCOPY [C] . T. Wiklund, J.E. Bron, K.D. Thompson, International Conference of the European Aquaculture Society . 2004

机译：使用共聚焦显微镜检查用香精菌性心肌蛋白感染彩虹鳟鱼蛋的初步研究
5. Identification of the mechanism responsible for attenuation of rifampicin-passaged Flavobacterium psychrophilum, etiologic agent of bacterial coldwater disease. [D] . Gliniewicz, Karol Sylwester. 2013

机译：鉴定了导致通过利福平传播的嗜冷黄杆菌（细菌冷水病的病原体）衰减的机制。
6. Phenotypic and genomic studies of Cytophaga psychrophila isolated from diseased rainbow trout (Oncorhynchus mykiss) in France. [O] . J F Bernardet, B Kerouault 1989

机译：在法国从患病的虹鳟鱼（Oncorhynchus mykiss）中分离出的 Cytophaga psychrophila的表型和基因组学研究。
7. Characterization of isolates of Flavobacterium psychrophilum associated with coldwater disease or rainbow trout fry syndrome I : phenotypic and genomic studies [O] . Lorenzen, Ellen, Dalsgaard, Inger, Bernardet, Jean-Francois 1997

机译：与冷水病或虹鳟鱼苗综合症相关的嗜冷链球菌菌株的表征I：表型和基因组研究

Characterization of isolates of Flavobacterium psychrophilum associated with coldwater disease or rainbow trout fry syndrome I: phenotypic and genomic studies

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