Einarsdottir Thorbjorg, Sigurdardottir Heida, Bjornsdottir Thorunn Soley, Einarsdottir Elisabet
Institute for Experimental Pathology, University of Iceland, Reykjavik, Iceland.
BioMedical Center, University of Iceland, Reykjavik, Iceland.
J Fish Dis. 2018 Nov;41(11):1751-1758. doi: 10.1111/jfd.12884. Epub 2018 Aug 21.
Winter ulcer disease, caused by Moritella viscosa, is a significant problem in cold water salmonid farming, although the bacterium can infect and cause disease in a number of other fish species, such as lumpfish (Cyclopterus lumpus). Lumpfish are used as cleaner fish, to eat sea lice from Atlantic salmon (Salmo salar) in sea pens. It remains to be established whether M. viscosa can be transmitted between the fish species. In this study, we examined whether a salmon isolate of M. viscosa could infect and cause disease in lumpfish. We further examined whether a lumpfish isolate of M. viscosa could infect and cause disease in salmon. Finally, we examined whether vaccination of salmon with a salmon isolate of M. viscosa conferred protection against a lumpfish isolate. The data indicate that while lumpfish appeared to be resistant to a salmon isolate of M. viscosa, the salmon could be infected with a lumpfish isolate of M. viscosa. Vaccination protected the salmon against the salmon isolate of M. viscosa but did not confer sufficient protection to prevent infection with the lumpfish isolate.
由粘滑莫拉菌引起的冬季溃疡病是冷水鲑鱼养殖中的一个重大问题，尽管这种细菌能感染多种其他鱼类并引发疾病，比如太平洋刺狮子鱼（Cyclopterus lumpus）。太平洋刺狮子鱼被用作清洁鱼，以清除海水网箱中大西洋鲑（Salmo salar）身上的海虱。粘滑莫拉菌是否能在这些鱼类之间传播仍有待确定。在本研究中，我们检测了粘滑莫拉菌的鲑鱼分离株是否能感染太平洋刺狮子鱼并引发疾病。我们还进一步检测了粘滑莫拉菌的太平洋刺狮子鱼分离株是否能感染鲑鱼并引发疾病。最后，我们检测了用粘滑莫拉菌的鲑鱼分离株对鲑鱼进行疫苗接种是否能使其免受太平洋刺狮子鱼分离株的侵害。数据表明，虽然太平洋刺狮子鱼似乎对粘滑莫拉菌的鲑鱼分离株具有抗性，但鲑鱼可能会被粘滑莫拉菌的太平洋刺狮子鱼分离株感染。疫苗接种保护鲑鱼免受粘滑莫拉菌的鲑鱼分离株侵害，但未能提供足够的保护以防止被太平洋刺狮子鱼分离株感染。
