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首页> 外文期刊>Veterinary Parasitology >Additional characterization of the adult worm Mammomonogamus laryngeus (Railliet, 1899) and the tissue lesions caused by the infection in buffaloes
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Additional characterization of the adult worm Mammomonogamus laryngeus (Railliet, 1899) and the tissue lesions caused by the infection in buffaloes

机译：成人蠕虫Mammomonogamus喉喉（Railliet，1899）和水牛感染引起的组织病变的额外表征

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摘要

Mammomonogamus spp. are parasites with curious characteristics, such as the "Y" shape that results from male and female maintaining the permanent copulation position and the controversial presence or absence of spicules. These nematodes are hematophagous and cause damage to the upper respiratory tracts of cattle, sheep, goats, deer, wild yaks, and orangutans. Human infection is rare and most cases until now have been in the Caribbean Islands or in Brazil, and mainly in farmworkers but recently there have been reports affecting tourists. In the present work, the parasites were recovered from the laryngopharynx and larynx region of Bubalus bubalis on the island of Marajo, Para, Brazil. Different microscopy methodologies were applied (bright field, fluorescence, and scanning electron microscopy) to explore the ultrastructural details of the anterior end, genital structures and the host tissue damage caused by the nematodes. The well-developed mouth is an important structure in the identification of these nematodes and used by the parasite to adhere to the host's tissue. Different methodologies in microscopy and molecular biology contributed to a detailed morphological description and showed the phenotypic position of Mammomonogamus laryngeus. Light and scanning electron microscopy (SEM) showed details of the papillae, amphids, festoons, ribs, and teeth. Fluorescence microscopy enabled a detailed characterization of different structures, such as the bursal rays and SEM enabled the visualization of the specialized features of the cuticle surface in the male and female. Histopathological analyses, cryofracture and environmental SEM experiments of the infected tissues were carried out in order to investigate the lesions resultant from the parasitism. In addition, the parasite couples were submitted to cryofracture and these results revealed details of the reproductive structures of both sexes, including the male spicule.
机译：Mammomonogamus SPP。是有奇怪的特征的寄生虫，例如雄性和女性的“y”形状，保持永久性和女性，以及争议的存在或不存在斑块。这些线虫是渗透的，对牛，羊，山羊，鹿，野牦牛和猩猩的上呼吸道造成损伤。人类感染是罕见的，大多数情况到现在已经在加勒比岛或巴西，主要在农业工人，但最近有报告影响游客。在目前的工作中，寄生虫从巴西巴拉巴拉岛的喉肠道和喉地区回收了喉球和喉地区。应用不同的显微镜方法（亮场，荧光和扫描电子显微镜），以探讨由线虫引起的前端，生殖器结构和宿主组织损伤的超微结构细节。良好的口感是鉴定这些线虫并由寄生虫用于粘附在宿主组织中的重要结构。显微镜和分子生物学中的不同方法导致了详细的形态学描述，并显示了乳腺癌的表型位置喉喉。光和扫描电子显微镜（SEM）显示乳头，肿瘤，Festoons，肋骨和牙齿的细节。荧光显微镜使不同结构的详细表征，例如Bursal Rays和SEM使得在雄性和雌性中的角质层表面的专用特征的可视化。进行组织病理学分析，进行感染组织的低温和环境SEM实验，以便研究寄生寄生的病变。此外，寄生虫伴侣被提交至干涉，这些结果揭示了两性的生殖结构的细节，包括雄性斑块。

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