对寄生于智利谷仓鸮(Tyto alba)体内的美洲盘尾丝虫(线虫纲,Syngamidae)的综合描述和组织病理学病变。

IF 1.8 3区 农林科学 Q2 VETERINARY SCIENCES
Veterinary Research Communications Pub Date : 2024-12-01 Epub Date: 2024-09-20 DOI:10.1007/s11259-024-10544-4
Pablo Oyarzún-Ruiz, Mauricio A Navarro, Sergio Donoso-Erch, Sebastián Muñoz-Leal
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引用次数: 0

摘要

寄生于鸟类的鞘翅目蠕虫(线虫纲:Syngamidae)被认为是世界性的,但了解其生物学和系统学的工作仅限于全北极地区。然而,在新热带地区只有一个最新的记录,没有关于其分子特征或其对宿主健康的重要性的数据。因此,本研究旨在通过综合方法确定寄生在本地猫头鹰身上的 Syngamid 蠕虫,并描述其病理后果。研究人员在2015年至2021年期间共解剖了14只仓鸮(Tyto alba),发现其中一只鸟寄生了大量寄生虫(即185条蠕虫)。通过光学显微镜和扫描电子显微镜,这些线虫在形态学上被鉴定为美洲盘尾丝虫,并通过核位点 ITS 和 LSU 的分子分析得到支持。病理变化被描述为严重的气囊炎和肺炎,这可能是导致该鸟死亡的原因。这项研究首次描述了这种线虫在新热带地区夜行性猎鸟体内寄生并导致死亡的情况。为了更好地了解这种寄生虫及其宿主的动态,还需要对其他地区和新热带国家的昼行性和夜行性猎禽进行更多的研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Integrative description and histopathological lesions of Cyathostoma americana (Nematoda, Syngamidae) parasitizing a barn owl (Tyto alba) in Chile.

Syngamid worms (Nematoda: Syngamidae) parasitizing birds of prey are considered cosmopolitan, but the efforts to understand their biology and systematics are restricted to the Holarctic region. However, in the Neotropical region there is only one recent record with no data about its molecular characterization or its significance to the health of its hosts. Thus, this study aimed to identify through an integrative approach the Syngamid worms parasitizing a native owl, and to describe its pathological consequences. A total of 14 barn owls (Tyto alba) were dissected between 2015 and 2021, from which one bird was found to be parasitized by a high parasitic burden (i.e. 185 worms). Considering light microscopy and SEM, these nematodes were morphologically identified as Cyathostoma americana, and then supported through molecular analyses of nuclear loci ITS and LSU. The pathological changes were described as severe airsacculitis and pneumonia, which probably were the cause of death of the bird. This study represents the first effort to characterize the parasitism by this nematode in a nocturnal bird of prey from the Neotropics, with a lethal outcome. Additional studies are required from other geographical areas and Neotropical countries to better understand the dynamics of this parasite and their hosts, considering both diurnal and nocturnal birds of prey.

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来源期刊
Veterinary Research Communications
Veterinary Research Communications 农林科学-兽医学
CiteScore
2.50
自引率
0.00%
发文量
173
审稿时长
3 months
期刊介绍: Veterinary Research Communications publishes fully refereed research articles and topical reviews on all aspects of the veterinary sciences. Interdisciplinary articles are particularly encouraged, as are well argued reviews, even if they are somewhat controversial. The journal is an appropriate medium in which to publish new methods, newly described diseases and new pathological findings, as these are applied to animals. The material should be of international rather than local interest. As it deliberately seeks a wide coverage, Veterinary Research Communications provides its readers with a means of keeping abreast of current developments in the entire field of veterinary science.
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