Rangel Luis F, Rocha Sónia, Castro Ricardo, Severino Ricardo, Casal Graça, Azevedo Carlos, Cavaleiro Francisca, Santos Maria J
Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, Edifício FC4, 4169-007, Porto, Portugal,
Parasitol Res. 2015 Jul;114(7):2671-8. doi: 10.1007/s00436-015-4472-5. Epub 2015 Apr 22.
Actinospores released from the marine oligochaete Limnodriloides agnes inhabiting a Southern Portuguese fish farm are molecularly recognized as developmental stages of the life cycle of Ortholinea auratae, a myxosporean parasite that infects the urinary bladder of Sparus aurata. The molecular analysis of the 18S rRNA gene reveals a similarity of 99.9 to 100 % of the actinospores analyzed to the myxospores of O. auratae. The actinospores belong to the triactinomyxon morphotype and occur in groups of eight within pansporocysts that develop in the intestinal epithelium of the oligochaete host. This is the first record of a myxosporean using an oligochaete as its invertebrate host in the marine environment.
从葡萄牙南部一个养鱼场的海洋寡毛纲动物艾氏软颤蚓释放出的放射孢子，在分子层面被认定为金色正线黏体虫生命周期的发育阶段，金色正线黏体虫是一种感染金头鲷膀胱的黏孢子虫寄生虫。对18S rRNA基因的分子分析显示，所分析的放射孢子与金色正线黏体虫的黏孢子的相似度为99.9%至100%。这些放射孢子属于三射孢子虫形态型，在寡毛纲宿主的肠上皮细胞中发育形成的孢子母细胞内成组出现，每组八个。这是在海洋环境中一种黏孢子虫以寡毛纲动物作为无脊椎动物宿主的首次记录。
