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Transmission au laboratoire et description de l'Hémogrégarine Lainsonia legeri n. sp (Lankesterellidae) parasite de Lézards brésiliens

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1974
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Transmission au laboratoire et description de l'Hémogrégarine Lainsonia legeri n. sp (Lankesterellidae) parasite de Lézards brésiliens.pdf (1.181xmlui.dri2xhtml.METS-1.0.size-megabytes)
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http://patua.iec.gov.br/handle/iec/763
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Landau, Iréne
Lainson, Ralph
Boulard, Yves
Shaw, Jeffrey Jon
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Lainsonia legeri n. sp., Lankesterellidae, a parasite of Tupinambis nigropunctatus Spix, 1825, from Belem (Para, Brazil), was transmitted in the laboratory both by intraperitoneal and intra-oesophageal inoculation of blood from infected Lizards to clean young Tupinambis. The parasitaemia became patent between the 36th and 48th day ; schizogony and sporogony occur in the reticulo-endothelial system of the host. Rapid dissemination of infective forms to alI the tissues of the vertebrate host is ensured by a special mechanism: oocysts mar become detached from the walls of the vessels at their sites of development (lungs, kidney and brain) and migrate throughout the circulation to the other tissues. This is probably an adaptative mechanism to facilitate the transmission by predation from Vertebrate to Vertebrate. The authors propose to include the three genera Lainsonia, Lankesterella and Schellackia in a single family, the Lankesterellidae, which has the priority to the Schellackiidae.
 
Lainsonia legeri n. sp., Lankesterellidae, parasite de Tupinambis nigropunctatus Spix, 1825, de Belem (Para, Brésil) a été transmis au laboratoire par inoculation entérale et parentérale de sang de Lézards infectés à de jeunes Tupinambis sains ; Ia parasitémie est apparue entre le 36 et le 48 jour; Ia schizogonie et Ia sporogonie évoluent dans le systeme réticuloendothélial de l'hôte. Un mécanisme très particulier permet une dissémination lapide des formes infectantes dans tout l'organisme de l'hôte vertébré: les oocystes se détachent de Ia paroi des vaisseaux de leur lieu de formation (poumon, rein, cerveau) pour circuler dans le sang et métastaser à distance. Il s'agit là, probablement, d'une adaptation à Ia transmission par prédation de Vertébré à Vertébré. Les auteurs proposent de réunir les trois gemes Lainsonia, Lankesterella et Schellackia dans une seule famille, les Lankesterellidae, qui ont priorité SUl les Schellackiidae.
 
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LANDAU, Iréne et al. Transmission au laboratoire et description de l'Hémogrégarine Lainsonia legeri n. sp (Lankesterellidae) parasite de Lézards brésiliens. Annales de Parasitologie Humaine et Comparée, tome 49, n. 3, p. 253-263, 1974.
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Lagartos / parasitologia
Brasil (BR)
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Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br
 

 

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Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br