Effects of the desiccation on Biomphalaria tenagophila (Orbigny, 1835) (Mollusca) infected by Schistosoma mansoni Sambon, 1907
Specimens of Biomphalaria tenagophila exposed to miracidia of Schistosoma mansoni were submitted to different desiccation periods as follows: group I: 24 h after exposure, desiccated for 28 days; group II: after cercariae elimination, desiccated for 7 days; group III: 21 days after exposure, desicca...
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Instituto Oswaldo Cruz, Ministério da Saúde
2001-07-01
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doaj-76eb041f08c046e996cf3e2f1c0d3dde2020-11-24T21:56:55ZengInstituto Oswaldo Cruz, Ministério da SaúdeMemórias do Instituto Oswaldo Cruz.0074-02761678-80602001-07-0196573773910.1590/S0074-02762001000500029Effects of the desiccation on Biomphalaria tenagophila (Orbigny, 1835) (Mollusca) infected by Schistosoma mansoni Sambon, 1907FP OhlweilerT KawanoSpecimens of Biomphalaria tenagophila exposed to miracidia of Schistosoma mansoni were submitted to different desiccation periods as follows: group I: 24 h after exposure, desiccated for 28 days; group II: after cercariae elimination, desiccated for 7 days; group III: 21 days after exposure, desiccated for 7 days; group IV: 14 days after exposure, desiccated for 14 days; group V: 7 days after exposure, desiccated for 21 days. From the obtained data it was verified that desiccation was not capable of interrupting the development of larvae of S. mansoni in mollusks. A delay in the development of S. mansoni larvae in groups I, III, IV and V was observed. A pause was verified in the development of S. mansoni larvae in groups II, III, IV and V. Some larvae, in groups I, III, IV and V, did not suffer as a result of desiccation and continued their development. Larvae in the cercariae stage were shown to be more sensitive to desiccation. It was possible to obtain clearing of mollusks infected by sporocysts II and cercariae using a period of 7 days of desiccation.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762001000500029Biomphalaria tenagophilaSchistosoma mansonidesiccation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
FP Ohlweiler T Kawano |
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FP Ohlweiler T Kawano Effects of the desiccation on Biomphalaria tenagophila (Orbigny, 1835) (Mollusca) infected by Schistosoma mansoni Sambon, 1907 Memórias do Instituto Oswaldo Cruz. Biomphalaria tenagophila Schistosoma mansoni desiccation |
author_facet |
FP Ohlweiler T Kawano |
author_sort |
FP Ohlweiler |
title |
Effects of the desiccation on Biomphalaria tenagophila (Orbigny, 1835) (Mollusca) infected by Schistosoma mansoni Sambon, 1907 |
title_short |
Effects of the desiccation on Biomphalaria tenagophila (Orbigny, 1835) (Mollusca) infected by Schistosoma mansoni Sambon, 1907 |
title_full |
Effects of the desiccation on Biomphalaria tenagophila (Orbigny, 1835) (Mollusca) infected by Schistosoma mansoni Sambon, 1907 |
title_fullStr |
Effects of the desiccation on Biomphalaria tenagophila (Orbigny, 1835) (Mollusca) infected by Schistosoma mansoni Sambon, 1907 |
title_full_unstemmed |
Effects of the desiccation on Biomphalaria tenagophila (Orbigny, 1835) (Mollusca) infected by Schistosoma mansoni Sambon, 1907 |
title_sort |
effects of the desiccation on biomphalaria tenagophila (orbigny, 1835) (mollusca) infected by schistosoma mansoni sambon, 1907 |
publisher |
Instituto Oswaldo Cruz, Ministério da Saúde |
series |
Memórias do Instituto Oswaldo Cruz. |
issn |
0074-0276 1678-8060 |
publishDate |
2001-07-01 |
description |
Specimens of Biomphalaria tenagophila exposed to miracidia of Schistosoma mansoni were submitted to different desiccation periods as follows: group I: 24 h after exposure, desiccated for 28 days; group II: after cercariae elimination, desiccated for 7 days; group III: 21 days after exposure, desiccated for 7 days; group IV: 14 days after exposure, desiccated for 14 days; group V: 7 days after exposure, desiccated for 21 days. From the obtained data it was verified that desiccation was not capable of interrupting the development of larvae of S. mansoni in mollusks. A delay in the development of S. mansoni larvae in groups I, III, IV and V was observed. A pause was verified in the development of S. mansoni larvae in groups II, III, IV and V. Some larvae, in groups I, III, IV and V, did not suffer as a result of desiccation and continued their development. Larvae in the cercariae stage were shown to be more sensitive to desiccation. It was possible to obtain clearing of mollusks infected by sporocysts II and cercariae using a period of 7 days of desiccation. |
topic |
Biomphalaria tenagophila Schistosoma mansoni desiccation |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762001000500029 |
work_keys_str_mv |
AT fpohlweiler effectsofthedesiccationonbiomphalariatenagophilaorbigny1835molluscainfectedbyschistosomamansonisambon1907 AT tkawano effectsofthedesiccationonbiomphalariatenagophilaorbigny1835molluscainfectedbyschistosomamansonisambon1907 |
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1725856422184353792 |