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首页> 外文期刊>Bulletin of the European Association of Fish Pathologists >Microsporidians infecting eel gobies (Gobiidae: Amblyopinae) from Malaysia, with a description of Microgemma tilanpasiri n. sp from the burrowing goby Trypauchen vagina
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Microsporidians infecting eel gobies (Gobiidae: Amblyopinae) from Malaysia, with a description of Microgemma tilanpasiri n. sp from the burrowing goby Trypauchen vagina

机译：小孢子虫感染马来西亚的鳗鱼虾虎鱼（Gobiidae：Amblyopinae），描述为Microgemma tilanpasiri n。从洞穴虾虎鱼Trypauchen阴道sp

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摘要

A new species of microsporidia, Microgemma tilanpasiri n. sp., is described infecting the burrowing goby, Trypauchen vagina, from Malaysia. The microsporidian forms macroscopic xenomas in the host liver which are packed with mature spores. Mature spores are slightly pyriform to oval in shape measuring 3.92+/-0.21 mu m in length and 2.87+/-0.16 mu m in width. No pre-spore stages were observed during electron microscopy studies and mature spores had a single nucleus and 12-13 turns of an isofilar polar filament, arranged in two rows. Sequencing of the ribosomal DNA indicated a strong phylogenetic relationship within the Tetramicridae and to other members of the genus Microgemma. The most similar species in terms of genetic distance is M. carolinus with a similarity of 99.23% over 1295 bases of the small subunit of ribosomal DNA. However, differences in the number of turns of the polar filament combined with host and geographical differences, support M. tilanpasiri as a novel microsporidian species. This represents the first description of Microgernma from the Western Pacific and the first from the Gobiidae family of fishes. Related blackfin eel gobies from the same sampling site were found to be uninfected with M. tilanpasiri; however one fish was infected with Glugea sp. in the visceral mesentery.
机译：微孢子虫的一种新种，Microgemma tilanpasiri n。据描述，该细菌感染马来西亚的穴居虾虎鱼Trypauchen阴道。微孢子虫在宿主肝脏中形成肉眼可见的异物，并充满成熟的孢子。成熟的孢子形状稍呈梨状至椭圆形，长3.92 +/- 0.21微米，宽2.87 +/- 0.16微米。在电子显微镜研究过程中未观察到孢子前阶段，成熟的孢子具有单个核和成行排列的12-13匝等丝极性细丝。核糖体DNA的测序表明在四翅目科内以及与微Gemma属的其他成员有很强的系统发生关系。就遗传距离而言，最相似的物种是卡罗氏杆菌，与核糖体DNA小亚基的1295个碱基的相似度为99.23％。然而，极丝的匝数差异与寄主和地理差异相结合，支持蒂兰帕西里螺旋藻为新型微孢子虫种。这代表了来自西太平洋的Microgernma的首次描述以及来自戈壁科鱼类的第一个描述。发现来自同一采样地点的相关黑鳍鳗go未感染蒂兰帕西里菌;但是，其中一条鱼感染了Glugea sp.。在内脏肠系膜

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