Long-term pathogenic response to Plasmodium relictum infection in Culex pipiens mosquito.

Détails

Ressource 1Télécharger: journal.pone.0192315.pdf (1001.14 [Ko])
Etat: Serval
Version: Final published version
ID Serval
serval:BIB_7205679F9800
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Long-term pathogenic response to Plasmodium relictum infection in Culex pipiens mosquito.
Périodique
PLoS One
Auteur(s)
Pigeault R., Villa M.
ISSN
1932-6203 (Electronic)
ISSN-L
1932-6203
Statut éditorial
Publié
Date de publication
2018
Peer-reviewed
Oui
Volume
13
Numéro
2
Pages
e0192315
Langue
anglais
Résumé
The transmission of Plasmodium within a vertebrate host population is strongly associated with the life history traits of its vector. Therefore the effect of malaria infection on mosquito fecundity and longevity has traditionally received a lot of attention. Several species of malaria parasites reduce mosquito fecundity, nevertheless almost all of the studies have focused only on the first gonotrophic cycle. Yet, during their lifetime, female mosquitoes go through several gonotrophic cycles, which raises the question of whether they are able to compensate the fecundity costs induced by the parasite. The impact of Plasmodium infection on female longevity is not so clear and has produced conflicting results. Here we measured the impact of Plasmodium relictum on its vector's longevity and fecundity during three consecutive gonotrophic cycles. In accordance with previous studies, we observed a negative impact of Plasmodium infection on mosquito (Culex pipiens) fecundity in the first gonotrophic cycle. Interestingly, despite having taken two subsequent uninfected blood meals, the negative impact of malaria parasite persisted. Nevertheless no impact of infection on mosquito longevity was observed. Our results are not in line with the hypothesis that the reduction of fecundity observed in infected mosquitoes is an adaptive strategy of Plasmodium to increase the longevity of its vector. We discuss the different underlying mechanisms that may explain our results.

Pubmed
Web of science
Open Access
Oui
Création de la notice
22/02/2018 16:44
Dernière modification de la notice
08/05/2019 20:20
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