Giardia agilis: Ultrastructure of the Trophozoites in the Frog Intestine

Detalhes bibliográficos
Autor(a) principal: Sogayar, Maria Inês L
Data de Publicação: 1998
Outros Autores: Gregório, Elisa Aparecida [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0074-02761998000300016
http://hdl.handle.net/11449/18852
Resumo: Intestine samples of Bufo sp. tadpoles with parasitism confirmed for Giardia agilis were studied by transmission electron microscopy. The G. agilis trophozoites were long and thin. The plasma membrane was sometimes undulated and the cytoplasm, adjacent to the dorsal and ventral regions, showed numerous vacuoles. The two nuclei presented prominent nucleoli. The cytoplasm was electron-dense with free ribosomes, glycogen and rough endoplasmic reticulum-like structures. Polyhedral inclusions were observed in the cytoplasm and outside the protozoan; some of these inclusions exhibited membrane disruption. The flagella ultrastructure is typical, with the caudal pair accompanied by the funis. Next to the anterior pair, osmiophilic material was noticed. The ventro-lateral flange was short and thick, supported by the marginal plates that penetrated into its distal extremity; only its distal portion had adjacent osmiophilic filament. The G. agilis trophozoites showed the general subcellular feature of the genus. However, the ventro-lateral flange ultrastructure was an intermediate type between G. muris and G. duodenalis.
id UNSP_3c281b5b2546fe381e188e5ba3a30b2b
oai_identifier_str oai:repositorio.unesp.br:11449/18852
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Giardia agilis: Ultrastructure of the Trophozoites in the Frog IntestineultrastructureGiardia agilistrophozoiteIntestine samples of Bufo sp. tadpoles with parasitism confirmed for Giardia agilis were studied by transmission electron microscopy. The G. agilis trophozoites were long and thin. The plasma membrane was sometimes undulated and the cytoplasm, adjacent to the dorsal and ventral regions, showed numerous vacuoles. The two nuclei presented prominent nucleoli. The cytoplasm was electron-dense with free ribosomes, glycogen and rough endoplasmic reticulum-like structures. Polyhedral inclusions were observed in the cytoplasm and outside the protozoan; some of these inclusions exhibited membrane disruption. The flagella ultrastructure is typical, with the caudal pair accompanied by the funis. Next to the anterior pair, osmiophilic material was noticed. The ventro-lateral flange was short and thick, supported by the marginal plates that penetrated into its distal extremity; only its distal portion had adjacent osmiophilic filament. The G. agilis trophozoites showed the general subcellular feature of the genus. However, the ventro-lateral flange ultrastructure was an intermediate type between G. muris and G. duodenalis.A01UNESPUNESPInstituto Oswaldo Cruz, Ministério da SaúdeUniversidade Estadual Paulista (Unesp)Sogayar, Maria Inês LGregório, Elisa Aparecida [UNESP]2014-05-20T13:52:46Z2014-05-20T13:52:46Z1998-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article357-361application/pdfhttp://dx.doi.org/10.1590/S0074-02761998000300016Memórias do Instituto Oswaldo Cruz. Instituto Oswaldo Cruz, Ministério da Saúde, v. 93, n. 3, p. 357-361, 1998.0074-0276http://hdl.handle.net/11449/1885210.1590/S0074-02761998000300016S0074-02761998000300016S0074-02761998000300016.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMemórias do Instituto Oswaldo Cruz2.8331,172info:eu-repo/semantics/openAccess2024-01-12T06:25:55Zoai:repositorio.unesp.br:11449/18852Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:45:35.240809Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Giardia agilis: Ultrastructure of the Trophozoites in the Frog Intestine
title Giardia agilis: Ultrastructure of the Trophozoites in the Frog Intestine
spellingShingle Giardia agilis: Ultrastructure of the Trophozoites in the Frog Intestine
Sogayar, Maria Inês L
ultrastructure
Giardia agilis
trophozoite
title_short Giardia agilis: Ultrastructure of the Trophozoites in the Frog Intestine
title_full Giardia agilis: Ultrastructure of the Trophozoites in the Frog Intestine
title_fullStr Giardia agilis: Ultrastructure of the Trophozoites in the Frog Intestine
title_full_unstemmed Giardia agilis: Ultrastructure of the Trophozoites in the Frog Intestine
title_sort Giardia agilis: Ultrastructure of the Trophozoites in the Frog Intestine
author Sogayar, Maria Inês L
author_facet Sogayar, Maria Inês L
Gregório, Elisa Aparecida [UNESP]
author_role author
author2 Gregório, Elisa Aparecida [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Sogayar, Maria Inês L
Gregório, Elisa Aparecida [UNESP]
dc.subject.por.fl_str_mv ultrastructure
Giardia agilis
trophozoite
topic ultrastructure
Giardia agilis
trophozoite
description Intestine samples of Bufo sp. tadpoles with parasitism confirmed for Giardia agilis were studied by transmission electron microscopy. The G. agilis trophozoites were long and thin. The plasma membrane was sometimes undulated and the cytoplasm, adjacent to the dorsal and ventral regions, showed numerous vacuoles. The two nuclei presented prominent nucleoli. The cytoplasm was electron-dense with free ribosomes, glycogen and rough endoplasmic reticulum-like structures. Polyhedral inclusions were observed in the cytoplasm and outside the protozoan; some of these inclusions exhibited membrane disruption. The flagella ultrastructure is typical, with the caudal pair accompanied by the funis. Next to the anterior pair, osmiophilic material was noticed. The ventro-lateral flange was short and thick, supported by the marginal plates that penetrated into its distal extremity; only its distal portion had adjacent osmiophilic filament. The G. agilis trophozoites showed the general subcellular feature of the genus. However, the ventro-lateral flange ultrastructure was an intermediate type between G. muris and G. duodenalis.
publishDate 1998
dc.date.none.fl_str_mv 1998-05-01
2014-05-20T13:52:46Z
2014-05-20T13:52:46Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S0074-02761998000300016
Memórias do Instituto Oswaldo Cruz. Instituto Oswaldo Cruz, Ministério da Saúde, v. 93, n. 3, p. 357-361, 1998.
0074-0276
http://hdl.handle.net/11449/18852
10.1590/S0074-02761998000300016
S0074-02761998000300016
S0074-02761998000300016.pdf
url http://dx.doi.org/10.1590/S0074-02761998000300016
http://hdl.handle.net/11449/18852
identifier_str_mv Memórias do Instituto Oswaldo Cruz. Instituto Oswaldo Cruz, Ministério da Saúde, v. 93, n. 3, p. 357-361, 1998.
0074-0276
10.1590/S0074-02761998000300016
S0074-02761998000300016
S0074-02761998000300016.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Memórias do Instituto Oswaldo Cruz
2.833
1,172
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 357-361
application/pdf
dc.publisher.none.fl_str_mv Instituto Oswaldo Cruz, Ministério da Saúde
publisher.none.fl_str_mv Instituto Oswaldo Cruz, Ministério da Saúde
dc.source.none.fl_str_mv SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129460091748352

Registros relacionados