Fenoxycarb exposure disrupted the reproductive success of the amphipod Gammarus fossarum with limited effects on the lipid profile

Abstract : Insect growth regulator insecticides mimic the action of hormones on the growth and development of insect pests. However, they can affect the development of non-target arthropods. In the present study, we tested the effects of the growth regulator insecticide fenoxycarb on several endpoints in the freshwater crustacean Gammarus fossarum (Amphipoda). Females carrying embryos in their open brood pouch were exposed to 50 μg L-1 fenoxycarb throughout the entire oogenesis (i.e. 21 days). After exposure, newborn individuals from exposed embryos were removed from the maternal open brood pouch for lipidomic analysis, while males were added to assess the reproductive success. After fertilization, the lipid profile, energy reserve content (lipids, proteins and glycogen), and activity of phenoloxidase − an enzyme involved in the immune response − were measured in females. No significant effect of fenoxycarb exposure was observed on the lipid profile of both newborn individuals and females, while reproductive success was severely impaired in exposed females. Particularly, precopulatory behavior was significantly reduced and fertilized eggs were unviable. This study highlighted the deleterious effects of the insect growth regulator fenoxycarb on gammarid reproduction, which could have severe repercussions on population dynamics.
Type de document :
Article dans une revue
PLoS ONE, Public Library of Science, 2018, 13 (4), pp.Article number e0196461. 〈10.1371/journal.pone.0196461〉
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-01803483
Contributeur : Agnès Bussy <>
Soumis le : mercredi 30 mai 2018 - 14:03:23
Dernière modification le : jeudi 31 mai 2018 - 01:14:09

Lien texte intégral

Identifiants

Collections

Citation

Hélène Arambourou, Inmaculada Fuertes, Emmanuelle Vulliet, Gaëlle Danièle, Patrice Noury, et al.. Fenoxycarb exposure disrupted the reproductive success of the amphipod Gammarus fossarum with limited effects on the lipid profile. PLoS ONE, Public Library of Science, 2018, 13 (4), pp.Article number e0196461. 〈10.1371/journal.pone.0196461〉. 〈hal-01803483〉

Partager

Métriques

Consultations de la notice

37