Reference : Effects of cyproterone acetate and vertically-transmitted microsporidia parasite on G...
Scientific journals : Article
Life sciences : Environmental sciences & ecology
http://hdl.handle.net/2268/214073
Effects of cyproterone acetate and vertically-transmitted microsporidia parasite on Gammarus pulex sperm production
English
Gismondi, Eric mailto [Université de Liège > Département de Biologie, Ecologie et Evolution > Ecologie animale et écotoxicologie >]
Fivet, Adeline [Université de Liège > > Protection et hygiène du travail (SUPHT) >]
Joaquim-Justo, Célia mailto [Université de Liège > Département de Biologie, Ecologie et Evolution > Ecologie animale et écotoxicologie >]
13-Sep-2017
Environmental Science and Pollution Research
Springer
24
29
23417–23421
Yes (verified by ORBi)
International
0944-1344
1614-7499
[en] Cyproterone acetate ; Spermatozoa ; Parasite ; Microsporidia ; Gammarus ; Endocrine disruption
[en] Endocrine disruption compounds (EDCs) and parasitism can both interfere with the reproduction process of organisms. The amphipod Gammarus pulex is the host of the vertically transmitted microsporidia Dictyocoela duebenum, and this work was devoted to the investigation of the effect of an exposure to the anti-androgen compound, cyproterone acetate (CPA), and/or of the presence of D. duebenum on the spermatozoa production and length. Significant reduction of the spermatozoa production was observed when G. pulex males were uninfected and exposed to CPA. There also appeared a lower number of spermatozoa when D. duebenum infects G. pulex, whatever the exposure condition. Moreover, we highlighted that CPA has no effect on spermatozoa production when males are infected by D. duebenum, and no treatment has impacted the spermatozoa length. Our results suggest CPA and D. duebenum could impact the endocrine system of G. pulex and especially processes close to the spermatozoa production (e.g., androgenic gland, androgen gland hormone released, gonad-inhibiting hormone synthesized by X-organ). However, as no mechanism of action was highlighted, further testing need to be performed to improve the understanding of their impacts. Finally, results confirm that vertically transmitted microsporidia could be a confounding factor in the endocrine disruption assessments in Gammaridae.
http://hdl.handle.net/2268/214073
10.1007/s11356-017-0162-4

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