Changes in the locomotory and reproductive behavior of Biomphalaria glabrata infected with Schistosoma mansoni

Experimental Parasitology
Anna Carla Alberto-SilvaClélia Christina Mello-Silva

Abstract

The infection and development of a parasite may cause physiological, morphological and behavioral changes in its host. Changes in the locomotory activity of a host induced by their parasites may also influence the life-cycles of both host and parasite in the environment. The aim of the present work was to evaluate the locomotory activities of Biomphalaria glabrata before and after an experimental infection with Schistosoma mansoni relating to the shedding of cercaria. In addition, the reproductive parameters of infected B. glabrata were analyzed during the prepatent and patent periods of the infection. The locomotory activity was recorded using an image analysis biomonitoring system based on a Videomex V. Five parameters were analyzed: 'Distance traveled', 'Ambulatory time', 'Stereotypic time', 'Resting time' and 'Average speed'. The number of shed cercariae was counted twice at 45 and 52 days post-infection. The reproductive parameters of infected B. glabrata analyzed were the numbers of egg masses, eggs and hatched snails. All statistical analyses were performed using the R program. Of the 69 snails infected with S. mansoni, 33 (47.8%) shed cercariae ('positive') and 36 (52.2%) ('exposed') failed to exhibit any cercarial shed...Continue Reading

References

Jan 1, 1983·Comparative Biochemistry and Physiology. B, Comparative Biochemistry·W Becker
Jan 28, 1999·Memórias do Instituto Oswaldo Cruz·O SarquisP Jurberg
Aug 20, 2010·Memórias do Instituto Oswaldo Cruz·Clélia Christina Mello-SilvaMaria de Lurdes de A Rodrigues
Dec 12, 2012·The Journal of Experimental Biology·Robert Poulin

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Citations

Jan 8, 2016·Trends in Parasitology·Alessio GiannelliDomenico Otranto
Apr 16, 2020·Anais Da Academia Brasileira De Ciências·Anna Carla Alberto-SilvaCláudia P Santos
Sep 3, 2018·Parasitology Research·Jenny Carolina Vivas MuñozKlaus Knopf

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