Issue |
Ann. Parasitol. Hum. Comp.
Volume 47, Number 1, 1972
|
|
---|---|---|
Page(s) | 17 - 27 | |
DOI | https://doi.org/10.1051/parasite/1972471017 | |
Published online | 11 October 2017 |
Mémoire
Evolution de Trypanosoma cruzi (Tehuantepec) chez Triatoma megista
Service de Parasitologie, Mycologie, U.E.R. Cochin-Port-Royal 27, rue du Faubougr-St-Jacques, F. 75 - Paris, 14 e, France.
L’étude de l’évolution de T. cruzi (souche Tehuantepec) au niveau des différents segments du tube digestif de Triatoma megista permet de constater :
1° La persistance au niveau de l’estomac et de l’intestin jusqu’au 24e jour de Trypanosomes dégradés morphologiquement, mais ayant conservé leur pouvoir infectant.
2° Au niveau de la phase rectale, l’apparition des Trypanosomes métacycliques à partir du 12e jour. Avant cette date, l’inoculation à la souris du contenu du rectum ne détermine pas d’infection, ce qui confirme que les formes Crithidia ne sont pas infectantes.
Abstract
Study of the life cycle of T. cruzi (Tehuentepec strain) in the different parts of the digestive tract of Triatoma megista shows.
1° The persistance up to the 24th day, in the stomach and intestins, of Trypanosomes morphologically altered but having kept their infective ability.
2° In the rectal part, the formation of metacyclic trypanosomes from the 12th day. Before that date inoculation to mice of the rectum content is uneffective which confirms the fact that Crithidia forms are not infective.
© Masson, Paris 1972, transferred to Société Française de Parasitologie
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