Influence de l'anhydrobiose sur l'infestation de Biomphalaria glabrata par un miracidium de Schistosoma mansoni

Memórias do Instituto Oswaldo Cruz

Félix Lancastre²  Marc Vianey-liaud¹  Gérard Coutris¹  Josiane Bolognini-treney²  Geneviève Mougeot²  Jean-pierre Ouaghlissi² 

[1] ,Faculté de Médecine Saint-Antoine Laboratoire de Parasitologie Paris,France

关键词: Biomphalaria glabrata;    Schistosoma mansoni;    monoinfection;    desiccation;    larval developtment;    preriodic variations;    cercarial production;    Biomphalaria glabrata;    Schistosoma mansoni;    monoinfestação;    dessecação;    desenvolvimento de larvas;    variações periódicas;    produção de cercárias;    Biomphalaria glabrata;    Schistosoma mansoni;    monoinfestation;    dessiccation;    développement larvaire;    variations périodiques;    productions cercariennes;   

DOI  :  10.1590/S0074-02761987000400013

来源: SciELO

【 摘 要 】

410 Biomphalaria glabrata (Caribbean strain of Guadeloupe) have been infected with one miracidium of Schistosoma mansoni, 110 snails, used as controls have been kept into water; the survival rate was 96.4% after 4 weeks and 25.4% produced cercariae. 300 snails were kept on wet soil, and submitted for 6 weeks to progressive desiccation. The survival rate was 23.4% but only 9 of them produced cercariae. Periodic variations of the production of male and female larvae have been shown by the weekly test of the cercariae productions. In previously desiccated snails, the production of male and female cercariae is similar while in controls the production of female larvae is more important. In experimental snails, the larval development seems to be stopped during anhydrobiosis. The production of cercariae is just delayed for the length of the dry keeping.

【 授权许可】

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