Grass carp which survive Dactylogyrus ctenopharyngodonid infection also gain partial immunity against Ichthyophthirius multifiliis.
Grass carp which survive Dactylogyrus ctenopharyngodonid infection also gain partial immunity against Ichthyophthirius multifiliis.
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DOI：
10.3354/dao03223
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发表时间：
2018-06
影响因子：
1.4
通讯作者：
Jian-Pei Li;Yao-wu Fu;Qi-Zhong Zhang;De-hai Xu;Yan-Meng Liu;Sheng-Yu Zhou;D. Lin
中科院分区：
文献类型：
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作者：
Jian-Pei Li;Yao-wu Fu;Qi-Zhong Zhang;De-hai Xu;Yan-Meng Liu;Sheng-Yu Zhou;D. Lin
鱼咽突趾虫和多filithophthirius是两种重要的鱼类体外寄生虫。这两种寄生虫都能在鱼体内引起免疫反应，导致寄生虫感染强度降低，并对寄生虫再感染产生抗性。本研究探讨了草鱼在被棘球绦虫感染后存活后，是否对棘球绦虫和多毛棘球绦虫的感染产生免疫。结果表明，草鱼感染棘球绦虫后，其红细胞数量和白细胞中血小板、单核细胞和中性粒细胞的百分比在感染早期显著增加。随着时间的推移，淋巴细胞的百分比随着寄生虫感染而增加。28 d时，平均感染强度降至0。感染后血清酸性磷酸酶、碱性磷酸酶、溶菌酶和超氧化物歧化酶活性显著升高。另外，草鱼感染后存活的草鱼能够完全抵抗棘球蚴的再次感染，部分抵抗多毛棘球蚴的感染。
Dactylogyrus ctenopharyngodonid and Ichthyophthirius multifiliis are 2 important ectoparasites of fish. Both parasites can induce an immune response in fish that leads to a decrease in parasitic infection intensity and the development of resistance against parasitic reinfection. The present study evaluated whether grass carp Ctenopharyngodon idella that survived a D. ctenopharyngodonid infection could develop immunity against infection by D. ctenopharyngodonid and I. multifiliis. The results demonstrated that when grass carp were infected with D. ctenopharyngodonid, the number of red blood cells and the percentages of thrombocytes, monocytes, and neutrophils in the white blood cells increased significantly in the early stage of infection. The percentage of lymphocytes increased over time following parasitic infection. The mean infection intensity of D. ctenopharyngodonid decreased to 0 on Day 28. The activities of serum acid phosphatase, alkaline phosphatase, lysozyme, and superoxide dismutase increased significantly after D. ctenopharyngodonid infection. In addition, the grass carp that survived a previous D. ctenopharyngodonid infection could completely resist D. ctenopharyngodonid reinfection and partially resist I. multifiliis infection.