Myxobolus xiushanensis n. sp. (Myxozoa: Myxobolidae) infecting the gill arches of Yellowhead Catfish Tachysurus fulvidraco from China

IF 1.5 4区 农林科学 Q3 FISHERIES Journal of aquatic animal health Pub Date : 2023-09-28 DOI:10.1002/aah.10193
Jinye Zhang, Miaomiao Wang, Luqi Tan, Yuanjun Zhao
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秀山粘菌(Myxobolus xiushanesis n.sp.)感染黄颡鱼(Tachysurus fulvidraco)鳃弓。
目的:近年来,袋鱼粘孢子虫病一直是水产养殖研究的热点。本研究的目的是鉴定一种新的粘代谢物质,命名为秀山粘菌(Myxobolus xiushanesis n.sp.),感染中国黄颡鱼(Tachysurus fulvidaraco)。方法:本研究采用分子生物学、形态学、系统发育学和组织病理学方法。结果:在瓣膜视图中,成熟的粘孢子为圆形至椭圆形,尺寸为12.2 ± 0.4 μm(平均值 ± SD;范围 = 11.2-13.2 μm)和10.6 ± 0.4 μm(9.5-11.1 μm)。两个椭圆形极性胶囊的宽度相等(3.4 ± 0.2微米;3.0-3.8 μm),但长度稍不相等:5.6 ± 0.3 μm(5.3-6.1 μm)和4.7 ± 0.2 μm(4.4-5.5 μm)。极性囊中充满了五到七个螺旋状的极性小管。组织病理学研究表明,鳃弓表皮层下的疟原虫只引起局部炎症反应,并没有对鳃弓的内部结构造成严重损伤。秀山分枝杆菌的两个小亚基(SSU)核糖体DNA序列显示出100%的相似性和唯一性,与GenBank中其他粘孢子虫序列的最高相似性为90.27%(查询覆盖率 = 94%)。SSU核糖体RNA的二级结构表明,本物种在V4和V7区域与相关物种有明显差异。系统发育分析表明,秀山M.xiushanesis n.sp.在一个分支内独立聚集。结论:这些结果丰富了我们对袋鱼粘孢子虫生物多样性的认识,为诊断粘孢子虫病提供了基础数据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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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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