dc.creator | Neves, Renata Heisler | |
dc.creator | Silva, Michele Costa | |
dc.creator | Martinez, Elaine Machado | |
dc.creator | Branquinho, Thiago B. | |
dc.creator | Oliveira, Regina Maria Figueiredo de | |
dc.creator | Lenzi, Henrique Leonel | |
dc.creator | Gomes, Delir Corrêa | |
dc.creator | Silva, José Roberto Machado e | |
dc.date | 2012-05-21T16:56:21Z | |
dc.date | 2012-05-21T16:56:21Z | |
dc.date | 2004 | |
dc.date.accessioned | 2023-09-26T20:46:37Z | |
dc.date.available | 2023-09-26T20:46:37Z | |
dc.identifier | Neves, Renata Heisler et al. Phenotypic plasticity in adult worms of Schistosoma mansoni (Trematoda:Schistosomatidae) evidenced by brightfield and confocal laser scanning microscopies. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 99, n. 2, p. 131-136, mar. 2004. | |
dc.identifier | 0074-0276 | |
dc.identifier | https://www.arca.fiocruz.br/handle/icict/4089 | |
dc.identifier | 10.1590/S0074-02762004000200003 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8863678 | |
dc.description | ACKNOWLEDGEMENTS To Departamento de Malacologia, Instituto Oswaldo Cruz for providing populations of S. mansoni. To Roberto Magalhães Pinto for critical comments on the manuscript. | |
dc.description | A comparative morphometric study was performed to identify host-induced morphological alterations in Schistosoma mansoni adult worms. A wild parasite population was obtained from a naturally infected rodent (Nectomys squamipes)and then recovered from laboratory infected C3H/He mice. Furthermore, allopatric worm populations maintained for long-term under laboratory conditions in Swiss Webster mice were passed on to N. squamipes. Suckers and genital system (testicular lobes, uterine egg, and egg spine) were analyzed by a digital system for image analysis. Confocal laser scanning microscopy (CLSM) showed details of the genital system (testicular lobes, vitelline glands, and ovary) and the tegument just below the ventral sucker. Significant morphological changes (p < 0.05) were detected in male worms in all experimental conditions, with no significant variability as assessed by CLSM. Significant changes (p < 0.05) were evident in females from the wild population related to their ovaries and vitelline glands, whereas allopatric females presented differences only in this last character. We conclude that S. mansoni worms present the phenotypic plasticity induced by modifications in the parasite's microenvironment, mainly during the first passage under laboratory conditions. | |
dc.format | application/pdf | |
dc.language | eng | |
dc.publisher | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz | |
dc.rights | open access | |
dc.subject | Schistosoma mansoni | |
dc.subject | phenotypic plasticity | |
dc.subject | Adult worms | |
dc.subject | Nectomys squamipes | |
dc.subject | C3H/He mice | |
dc.subject | confocal laser scanning microscopy | |
dc.subject | Schistosoma mansoni, anatomia & histologia | |
dc.subject | Microscopia Confocal | |
dc.subject | Fenótipo | |
dc.title | Phenotypic plasticity in adult worms of Schistosoma mansoni (Trematoda:Schistosomatidae) evidenced by brightfield and confocal laser scanning microscopies | |
dc.type | Article | |