实验研究鲁氏耶尔森菌感染虹鳟鱼的进入及组织分布的路线.docVIP

实验鲁氏耶尔森菌感染虹鳟鱼及组织分布的路线Experimental study LuShi Yales bacteria infection into and organization of didn distribution route 摘要：鲁氏耶尔森菌是，。尽管这种疾病的，现有发病机制资料很少。在研究中，鲁氏耶尔森菌虹鳟鱼鲁氏耶尔森菌致病性鲁氏耶尔森菌致病性Abstract: LuShi Yales bacteria is red mouth stone intestinal disease pathogen perch, it brought the world aquaculture salmon bring about significant loss. Although this kind of disease is very importance, but the existing available to the pathogenesis of material is very few however. In the study, use different four LuShi Yales contact method of strains didn to infection entrance. Bacteriology and histological examination revealed that the LuShi Yales bacteria in the internal organs spread quickly after infection, appeared in numerous gills bacteria. But, only pathogenic strain is able to survive and reproduce in host, lead to infection sepsis, and in the days after death. The results show that the gills may be a important entrance, and LuShi Yales immune from the pathogenicity of bacteria and relevant. 关键词：鲁氏耶尔森菌致病性虹鳟鱼Key words: LuShi Yales entrance pathogenic bacteria infection didnt introduction LuShi Yales bacteria pathogens are from tellsons intestinal disease or plague bacili is red mouth stone perch intestinal disease (ERM) of pathogens, it to global salmon farming caused a great loss. Although the pathogen infection, have been reported in other fish, salmon (especially rainbow trout) is the most easy to be infected by ERM (Furones et al. 1993). Infections may cause and internal organs of the body appear successfully acute or chronic sepsis. Despite the importance of ERM, LuShi Yales fungus can win over the host defense and the exact cause disease pathogenic mechanism is very little. And LuShi Yales between the pathogenicity of different strains have been research record, mainly through the abdominal muscles and injection and contact exposure. (Davies 1991, Romalde Toranzo 1993, Austin et al. 2003, Fouz et al. 2006). But, this last method, seems to be a more reliable and ef