<i>Sarcocystis rommeli</i>, n. sp. (Apicomplexa: Sarcocystidae) from cattle (<i>Bos taurus</i>) and its differentiation from <i>Sarcocystis hominis</i>

Cattle (<i>Bos taurus</i>) are intermediate hosts for three named species of <i>Sarcocystis</i>, <i>S. cruzi</i>, <i>S. hirsuta</i>, and <i>S. hominis</i>. Recently, a fourth species was identified and named <i>S. sinensis</i>....

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Detalles Bibliográficos
Autores principales: Dubey, Jitender P., Moré, Gastón Andrés, Wilpe, Erna van, Calero-Bernal, Rafael, Verma, Shiv K., Schares, Gereon
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2016
Materias:
Veterinaria
Cattle
ultrastructure
Definitive host
intermediate host
molecular
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/127406
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-127406
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Veterinaria
Cattle
ultrastructure
Definitive host
intermediate host
molecular
spellingShingle Veterinaria
Cattle
ultrastructure
Definitive host
intermediate host
molecular
Dubey, Jitender P.
Moré, Gastón Andrés
Wilpe, Erna van
Calero-Bernal, Rafael
Verma, Shiv K.
Schares, Gereon
<i>Sarcocystis rommeli</i>, n. sp. (Apicomplexa: Sarcocystidae) from cattle (<i>Bos taurus</i>) and its differentiation from <i>Sarcocystis hominis</i>
topic_facet Veterinaria
Cattle
ultrastructure
Definitive host
intermediate host
molecular
description Cattle (<i>Bos taurus</i>) are intermediate hosts for three named species of <i>Sarcocystis</i>, <i>S. cruzi</i>, <i>S. hirsuta</i>, and <i>S. hominis</i>. Recently, a fourth species was identified and named <i>S. sinensis</i>. However, <i>S. sinensis</i> originally named a species of <i>Sarcocystis</i> in water buffalo (<i>Bubalus bubalis</i>) in China. Based on unverifiable evidence, it was suggested that the same parasite infects cattle. In addition, <i>S. sinensis</i> was recently declared as <i>nomen nudum</i> because its naming violated the rules of International Code of Zoological Nomenclature. Thus, the fourth species using cattle as an intermediate host does not have a valid name. Here, we propose a new name, <i>Sarcocystis rommeli</i> for the <i>S. sinensis</i>-like parasite from cattle in Argentina, and differentiate it ultrastructurally from <i>S. hominis</i> sarcocysts from experimentally infected cattle. <i>Sarcocystis rommeli</i> sarcocysts were microscopic with a 5-μm-thick wall with slender villar protrusions (Vp); the Vp were up to 5 μm long, up to 0.5 μm wide, and of uneven thickness, often bent at an angle. The ground substance layer (Gs) was up to 0.8 μm thick and smooth. Vesicular structures were seen at the base of the Vp. The bradyzoites were 10–12 μm long. <i>Sarcocystis hominis</i> sarcocysts had Vp that were often upright, up to 7.5 μm long, and up to 1.8 μm wide; the Gs was up to 2 μm thick and without vesicles. Its sarcocyst wall was up to 5.6 μm thick, the vp were bent at an angle, up to 5.8 μm long, the Gs was up to 2 μm thick, but without vesicles seen in <i>S. rommeli</i>. Beef containing sarcocysts of <i>S. rommeli</i> was not orally infectious for two human volunteers and a red fox (<i>Vulpes vulpes</i>). The <i>Sarcocystis</i> described here is molecularly different from <i>S. cruzi</i>, <i>S. hirsuta</i>, and <i>S. hominis</i> based on <i>18S rRNA</i> and <i>cox1</i> gene sequences.
format Articulo
Preprint
author Dubey, Jitender P.
Moré, Gastón Andrés
Wilpe, Erna van
Calero-Bernal, Rafael
Verma, Shiv K.
Schares, Gereon
author_facet Dubey, Jitender P.
Moré, Gastón Andrés
Wilpe, Erna van
Calero-Bernal, Rafael
Verma, Shiv K.
Schares, Gereon
author_sort Dubey, Jitender P.
title <i>Sarcocystis rommeli</i>, n. sp. (Apicomplexa: Sarcocystidae) from cattle (<i>Bos taurus</i>) and its differentiation from <i>Sarcocystis hominis</i>
title_short <i>Sarcocystis rommeli</i>, n. sp. (Apicomplexa: Sarcocystidae) from cattle (<i>Bos taurus</i>) and its differentiation from <i>Sarcocystis hominis</i>
title_full <i>Sarcocystis rommeli</i>, n. sp. (Apicomplexa: Sarcocystidae) from cattle (<i>Bos taurus</i>) and its differentiation from <i>Sarcocystis hominis</i>
title_fullStr <i>Sarcocystis rommeli</i>, n. sp. (Apicomplexa: Sarcocystidae) from cattle (<i>Bos taurus</i>) and its differentiation from <i>Sarcocystis hominis</i>
title_full_unstemmed <i>Sarcocystis rommeli</i>, n. sp. (Apicomplexa: Sarcocystidae) from cattle (<i>Bos taurus</i>) and its differentiation from <i>Sarcocystis hominis</i>
title_sort <i>sarcocystis rommeli</i>, n. sp. (apicomplexa: sarcocystidae) from cattle (<i>bos taurus</i>) and its differentiation from <i>sarcocystis hominis</i>
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/127406
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