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Immunocompetence analysis of the aquatic snail Lymnaea stagnalis exposed to urban wastewaters

Abstract : Wastewater treatment plant effluents from urban area are a well-known source of chronic multiple micropollution to the downstream living organisms. In this study, ecologically relevant laboratory-bred freshwater gastropods, Lymnaea stagnalis, were exposed for 29 days to raw effluents of a wastewater treatment plant in Lyon area (France). A time-course analysis of individual markers of immunocompetence (hemocyte density and viability, hemocyte NADPH activity, phenol oxidase activity, and capacity of phagocytosis) has shown slight trends of inflammatory-like responses induced by the 100% effluents. So far, no short-term hazard for L. stagnalis can be revealed. However, over the long term, such environmental stress-stimulating immune responses could provoke deleterious life history trade-offs because the immune system is known to be highly energy-consuming.
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https://hal.archives-ouvertes.fr/hal-01842069
Contributor : Helene Thomas <>
Submitted on : Tuesday, July 17, 2018 - 7:33:19 PM
Last modification on : Wednesday, May 20, 2020 - 9:18:16 PM

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Paul Boisseaux, Patrice Noury, Nicolas Delorme, Lucile Perrier, Hélène Thomas-Guyon, et al.. Immunocompetence analysis of the aquatic snail Lymnaea stagnalis exposed to urban wastewaters. Environmental Science and Pollution Research, Springer Verlag, 2018, 25 (17), pp.16720 - 16728. ⟨10.1007/s11356-018-1790-z⟩. ⟨hal-01842069⟩

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