Phenotypic plasticity in adult worms of Schistosoma mansoni (Trematoda:Schistosomatidae) evidenced by brightfield and confocal laser scanning microscopies

Memórias do Instituto Oswaldo Cruz
Renata Heisler NevesJosé R Machado-Silva

Abstract

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 f...Continue Reading

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Citations

Nov 28, 2009·Journal of Helminthology·J R Machado-SilvaR Rodrigues-Silva
Aug 4, 2011·Journal of Helminthology·Wei-na ZhangJi-jia Shen
Nov 21, 2012·PLoS Neglected Tropical Diseases·Alexis A CogswellDavid L Williams
Sep 12, 2006·Veterinary Parasitology·Fernanda B AlmeidaJosé R Machado-Silva
Jun 21, 2005·Experimental Parasitology·José Roberto Machado-SilvaAntonio Carlos da Silva
Feb 22, 2012·Experimental Parasitology·Michele Costa-SilvaArnaldo Maldonado-Júnior
Feb 18, 2014·International Journal for Parasitology. Parasites and Wildlife·Mohammad Nafi Solaiman Al-SabiHeidi Larsen Enemark
May 28, 2016·Experimental Parasitology·Alba Cristina Miranda de Barros AlencarJosé Roberto Machado-Silva
Feb 20, 2007·Memórias do Instituto Oswaldo Cruz·Carla de Lamare BiolchiniJosé Roberto Machado-Silva
Sep 25, 2008·Revista Do Instituto De Medicina Tropical De São Paulo·Elaine Machado MartinezJosé Roberto Machado-Silva
Feb 9, 2019·Frontiers in Immunology·Lívia das Graças Amaral AvelarMarina de Moraes Mourão

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