First report of Myxobolus neurofontinalis (Bivalvulida: Myxobolidae) infecting anadromous Brook Trout from Prince Edward Island, Canada

IF 1.5 4区 农林科学 Q3 FISHERIES
Steven P. Ksepka, David B. Groman, Laura Bourque, Stephen A. Bullard
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引用次数: 0

Abstract

首次报告加拿大爱德华王子岛溪流鳟鱼感染 Myxobolus neurofontinalis(双壳纲:Myxobolidae)。
目的:在对加拿大爱德华王子岛(PEI)溯河溪鳟鱼(Salvelinus fontinalis)死亡事件的组织进行常规组织学检查时,观察到中枢神经系统感染了与Myxobolus一致的肌孢子。本研究的目的是确定感染加拿大爱德华王子岛溯河布鲁克斯鳟鱼神经系统的粘孢子菌的种类:方法:利用肌孢子形态学、小亚单位(SSU)核糖体DNA(rDNA)序列数据和组织学来鉴定从受感染的布鲁克鳟鱼体内分离出的肌孢子:结果:PEI 样品中的肌孢子测量值与北卡罗来纳州的 Myxobolus neurofontinalis 的描述相符。从爱德华王子岛鳟鱼身上采集到的肌孢子的 SSU rDNA 的 1057-bp 片段与之前从北卡罗来纳州新河流域的模式产地采集到的 M. neurofontinalis 分离物(MN191598)相同。组织学切片证实,感染发生在中枢神经系统的细胞间。观察到的宿主反应极小,仅在分散的肌孢子外围和内部有稀疏的单核炎症浸润,这表明感染对布鲁克鳟鱼不具致病性:结论:经鉴定,肌孢子为M. neurofontinalis,以前曾在美国北卡罗来纳州新河流域的布鲁克鳟鱼中枢神经系统中发现过。这是首次在北卡罗来纳州新河流域以外的地方记录到神经虹鳟。
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来源期刊
Journal of aquatic animal health
Journal of aquatic animal health 农林科学-兽医学
CiteScore
2.50
自引率
0.00%
发文量
25
审稿时长
>24 weeks
期刊介绍: The Journal of Aquatic Animal Health serves the international community of scientists and culturists concerned with the health of aquatic organisms. It carries research papers on the causes, effects, treatments, and prevention of diseases of marine and freshwater organisms, particularly fish and shellfish. In addition, it contains papers that describe biochemical and physiological investigations into fish health that relate to assessing the impacts of both environmental and pathogenic features.
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