Development of Leishmania mexicana in Lutzomyia longipalpis in the absence of sugar feeding
Mem. Inst. Oswaldo Cruz
;
114: e180482, 2019. graf
Article
Dans Anglais
| LILACS
| ID: biblio-1040621
ABSTRACT
The leishmaniases are caused by Leishmania parasites and transmitted through the bites of phlebotomine sand flies. During parasite development inside the vector's midgut, promastigotes move towards the stomodeal valve, a mechanism that is crucial for transmission. It has been reported that the sugar meal acquired by sand flies during feeding between bloodmeals is essential for the development and migration of parasites. We demonstrated that the distribution of Leishmania mexicana parasites was affected by the sugar meals obtained by the sand flies. Promastigote migration towards the cardia region seems to be only partially based on the stimuli provided by sugar molecules. In the absence of sugars, significant amounts of parasites developed in the hindgut. In addition, sugar meals were important for the survival of sand flies, especially during blood digestion, presumably supporting their energy requirements.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Psychodidae
/
Leishmania mexicana
/
Tube digestif
/
Sucres
/
Comportement alimentaire
/
Vecteurs insectes
Limites du sujet:
Animaux
Pays comme sujet:
Mexico
langue:
Anglais
Texte intégral:
Mem. Inst. Oswaldo Cruz
Thème du journal:
Médecine tropicale
/
Parasitologie
Année:
2019
Type:
Article
Pays d'affiliation:
Brésil
/
Royaume-Uni
Institution/Pays d'affiliation:
Fundação Oswaldo Cruz-Fiocruz/BR
/
Lancaster University/GB
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