Almeida Lara Ribeiro de, Souza Joyce Gonçalves Rosário de, Santos Hudson Andrade, Torres Eduardo José Lopes, Vilela Roberto do Val, Cruz Olívia Monique Soares, Rodrigues Leonardo, Pereira Cíntia Aparecida de Jesus, Maldonado Junior Arnaldo, Lima Walter Dos Santos
Laboratório de Helmintologia Veterinária, Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais - UFMG, Belo Horizonte, MG, Brasil.
Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Fundação Oswaldo Cruz - FIOCRUZ, Rio de Janeiro, RJ, Brasil.
Rev Bras Parasitol Vet. 2020 Feb 10;29(1):e018119. doi: 10.1590/S1984-29612019103. eCollection 2020.
Currently, there are 21 species of Angiostrongylus that parasitize the pulmonary or mesenteric arteries of wild and domestic rodents, felids, canids and human. Species of Angiostrongylus have cosmopolitan distribution covering tropical, subtropical and temperate regions. The procyonid Nasua nasua (coati) is a reservoir host for a wide variety of parasites that may be harmful to its populations or may contain etiological agents with zoonotic potential. In urban areas, coatis are usually found in close association with humans and domestic animals. We morphologically and molecularly characterized a new species of Angiostrongylus found in N. nasua in a protected area within Belo Horizonte, Brazil. The new species of Angiostrongylus differs from other species of the same genus in terms of the length and bifurcation level of the lateral and ventral rays, the length of spicules and female tail morphology. Molecular phylogenetic results based on the mitochondrial cytochrome c oxidase subunit 1 gene suggest that the newly identified species belongs to a genetic lineage that is separate from other species of Angiostrongylus. This new species was collected from the mesenteric arteries of N. nasua. It was named Angiostrongylus minasensis n. sp..
目前，有21种广州管圆线虫寄生于野生和家养啮齿动物、猫科动物、犬科动物及人类的肺或肠系膜动脉中。广州管圆线虫种类分布广泛，覆盖热带、亚热带和温带地区。浣熊科的长鼻浣熊（南美浣熊）是多种寄生虫的储存宿主，这些寄生虫可能对其种群有害，或可能携带具有人畜共患病潜力的病原体。在城市地区，南美浣熊通常与人类和家畜密切接触。我们对在巴西贝洛奥里藏特一个保护区的长鼻浣熊体内发现的一种新的广州管圆线虫进行了形态学和分子特征分析。这种新的广州管圆线虫在侧肋和腹肋的长度及分叉水平、交合刺长度和雌虫尾部形态方面与同属的其他物种不同。基于线粒体细胞色素c氧化酶亚基1基因的分子系统发育结果表明，新鉴定的物种属于一个与其他广州管圆线虫物种不同的遗传谱系。这个新物种是从长鼻浣熊的肠系膜动脉中采集到的。它被命名为米纳斯广州管圆线虫（Angiostrongylus minasensis n. sp.）。
