Your browser doesn't support javascript.
loading
Effect of Leishmania spp infection on the survival, life expectancy, fecundity and fertility of Lutzomyia longipalpiss.l. and Lutzomyia pseudolongipalpis
Agrela, Irma Fatima; Feliciangeli, Maria Dora.
  • Agrela, Irma Fatima; Universidad de Carabobo. Facultad de Ciencias de la Salud. Instituto de Investigaciones Biomédicas. Maracay. VE
  • Feliciangeli, Maria Dora; Universidad de Carabobo. Facultad de Ciencias de la Salud. Instituto de Investigaciones Biomédicas. Maracay. VE
Mem. Inst. Oswaldo Cruz ; 110(5): 611-617, Aug. 2015. tab, ilus
Article in English | LILACS | ID: lil-755888
ABSTRACT

We evaluated the effects of Leishmaniaspp infection on several population parameters of Lutzomyia longipalpis sensu lato andLutzomyia pseudolongipalpis, vectors of visceral leishmaniasis in Venezuela, under experimental conditions during the first post-feeding period. Females of both species were allowed to feed and engorge on a suspension of fresh washed human red blood cells in foetal calf serum. These blood cells were either non-infected or infected with one of the fourLeishmaniaspp strains and were offered through a chicken skin membrane. The longevity, life expectancy and the fecundity of uninfected flies were similar in both species, but the fertility was significantly lower in uninfected Lu. longipalpis females. In all cases, the infection of Lu. longipalpis and Lu. pseudolongipalpis by the Leishmaniastrains resulted in significant detrimental effects, which exerted a fitness cost expressed by reduced survival and life expectancy, as well as decreased fertility and fecundity compared with the control groups. Nevertheless, differences in these parameters were observed between these vector species depending on whether they were infected with the autochthonous Venezuelan Leishmania infantum strain (NESA) or the Brazilian reference strain (PP75). The experimental data obtained agree with field data on the natural infection of these vector species and the significance of this scenario is discussed.

.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Psychodidae / Host-Parasite Interactions / Insect Vectors / Leishmania Limits: Animals Country/Region as subject: South America / Venezuela Language: English Journal: Mem. Inst. Oswaldo Cruz Journal subject: Tropical Medicine / Parasitology Year: 2015 Type: Article / Project document Affiliation country: Venezuela Institution/Affiliation country: Universidad de Carabobo/VE

Similar

MEDLINE

...
LILACS

LIS


Full text: Available Index: LILACS (Americas) Main subject: Psychodidae / Host-Parasite Interactions / Insect Vectors / Leishmania Limits: Animals Country/Region as subject: South America / Venezuela Language: English Journal: Mem. Inst. Oswaldo Cruz Journal subject: Tropical Medicine / Parasitology Year: 2015 Type: Article / Project document Affiliation country: Venezuela Institution/Affiliation country: Universidad de Carabobo/VE