Henneguya patriciai n. sp. (Cnidaria: Myxosporea) parasitizing Leporinus friderici (Bloch 1794) from Tartarugalzinho river, eastern Amazon.

IF 2.1 3区医学 Q2 PARASITOLOGY

Parasitology Pub Date : 2024-11-11 DOI:10.1017/S0031182024000684

Abthyllane Amaral de Carvalho, Lilia Suzane de Oliveira Nascimento, Luize Cristine Pantoja Dos Reis, Roger Leomar da Silva Ferreira, Saturo Cardoso Morais, Elane Guerreiro Geise, Marcela Nunes Videira, Edilson Rodrigues Matos

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Abstract

The Amazon basin has the largest number of fish in the world, and among the most common fishes of the Neotropical region, the threespot (Leporinus friderici) is cited, which in relation to its microparasitic fauna, has described only 1 species of the genus Henneguya, Henneguya friderici. The Myxozoa class is considered an obligate parasite, being morphologically characterized by spores formed by valves connected by a suture line. This study describes a new species of Henneguya sp. in the Amazon region for L. friderici. This parasite was found in the host's pyloric caeca and caudal kidney, with mature spores with a total spore length of 38.4 ± 2.5 (35.9–40.9) μm; the spore body 14.4 ± 1.1 (13.3–15.5) μm and 7.3 ± 0.6 (6.7–7.9) μm wide. Regarding its 2 polar capsules, they had a length of 5.1 ± 0.4 (4.7–5.5) μm and a width of 2.0 ± 0.1 (1.9–2.1) μm in the same pear-shaped, and each polar capsule contained 9–11 turns. Morphological and phylogenetic analyses denote that this is a new species of the genus Henneguya.

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Henneguya patriciai n. sp. (Cnidaria: Myxosporea) 寄生于亚马逊东部 Tartarugalzinho 河的 Leporinus friderici (Bloch 1794)。

亚马逊河流域拥有世界上最多的鱼类，在新热带地区最常见的鱼类中，以三节鱼（Leporinus friderici）为例，就其微寄生动物群而言，仅描述了 Henneguya 属的一个物种 Henneguya friderici。粘孢子虫类被认为是一种强制性寄生虫，其形态特征是由缝合线连接的瓣膜形成的孢子。本研究描述了亚马逊地区一种新的 Henneguya sp.在宿主的幽门盲肠和尾肾中发现了这种寄生虫，其成熟孢子的总长度为 38.4 ± 2.5 (35.9-40.9) μm；孢子体长 14.4 ± 1.1 (13.3-15.5) μm，宽 7.3 ± 0.6 (6.7-7.9) μm。至于其 2 个极囊，它们的长度为 5.1 ± 0.4 (4.7-5.5) μm，宽度为 2.0 ± 0.1 (1.9-2.1) μm，呈相同的梨形，每个极囊包含 9-11 圈。形态学和系统发生学分析表明这是 Henneguya 属的一个新种。

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

Parasitology 医学-寄生虫学

CiteScore

4.80

自引率

4.20%

发文量

280

审稿时长

3-8 weeks

期刊介绍： Parasitology is an important specialist journal covering the latest advances in the subject. It publishes original research and review papers on all aspects of parasitology and host-parasite relationships, including the latest discoveries in parasite biochemistry, molecular biology and genetics, ecology and epidemiology in the context of the biological, medical and veterinary sciences. Included in the subscription price are two special issues which contain reviews of current hot topics, one of which is the proceedings of the annual Symposia of the British Society for Parasitology, while the second, covering areas of significant topical interest, is commissioned by the editors and the editorial board.