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Connected As: <Anonymous> Contact: srcosmos@aegean.gr |
Article summary:
| Keywords | Biomphalaria glabrata, amoebocytes, Schistosoma mansoni, sporocysts |
| Abstract | The behaviour of the albino and melanic variants of Biomphalaria glabrata of Belo Horizonte (MG. Brazil) was studied comparatively, in terms of their respective susceptibilities to infection by Schistosoma mansoni of the same origin, through observation of the elimination of cercariae for a three-month period and the calculation of mortality and infection rates, in control and in infected snails. The number of amoebocytes, granulocytes and hyalinocytes in the circulating hemolymph during different periods of infection was analyzed. The evolution of the infection in the tissues was observed by means of histological cross-sections. The melanic variant showed greater susceptibility to infection and a higher mortality rate. The albino variant showed a higher number of circulating amoebocytes, both granulocytes and hyalinocytes. A higher number of degenerated sporocysts were seen in the histological cross-sections of the albino variant. The results suggest that the melanic variant of B. glabrata was more susceptible to infection by S. mansoni than was the albino variant. |
| Full text | Full Text in PDF (155 KB) |
| Source link | http://www.scielo.br/pdf/bjb/v69n1/29.pdf |
| Included Refrences | 28 References (List...) |
| Cited by other Articles | 0 Citations (List...) |
| Name | Affiliation | Home page | Total pubs | |
| Allegretti SM | Departamento de Parasitologia, Instituto de Biologia, Universidade Estadual de Campinas - UNICAMP, Cidade Universitaria, Barao Geraldo, CP 6109, CEP 13083-970, Campinas, SP, Brazil | 1 | ||
| Carvalho JF | Statistika Consultoria, Rua Barao de Jaguara, 1481, Ed. Cruz Alta, 14° andar, Sala 47, Centro, CEP 13015-910 Campinas, SP, Brazil | 2 | ||
| Magalhaes LA | Departamento de Parasitologia, Instituto de Biologia, Universidade Estadual de Campinas, UNICAMP, C.P. 6109, CEP 13083-970, Campinas, SP, Brazil | emzm@unicamp.br | 5 | |
| Zanotti-Magalhaes EM | Departamento de Parasitologia, Instituto de Biologia, Universidade Estadual de Campinas, UNICAMP, C.P. 6109, CEP 13083-970, Campinas, SP, Brazil | emzm@unicamp.br | 5 |
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