Experimental Infection of Aedes albopictus (Diptera: Culicidae) Larvae with the Xiphidiocercariae of a Hematolechid

Memórias do Instituto Oswaldo Cruz

Gílcia Aparecida De Carvalho²  Carlos Fernando S Andrade²  Marlene Tiduko Ueta¹ 

[1] ,Universidade Estadual de Campinas Instituto de Biologia Departamento de Zoologia

关键词: Aedes albopictus;    parasitism;    xiphidiocercariae;    metacercariae;    Haematoloechus sp.;   

DOI  :  10.1590/S0074-02762002000400023

来源: SciELO

【 摘 要 】

Aedes albopictus larvae were exposed, either individually or in groups, to different concentrations of xiphidiocercariae of Haematoloechus sp. for parasitological studies. It was observed the acute lethal effect and some aspects of the host-parasite relationship, such as delay or progress in the host life cycle, the number and location of the metacercariae in the host, adult host malformations and the amount of metacercariae required to cause death. A delay in the cycle and a high mortality rate was in general observed. Inside the larvae, the metacercariae were found predominantly in the thorax, abdominal segments and in the head, along with a reduced number in the anal lobe and cervix. It was shown that in addition to the quantity of metacercariae present, their location in the larvae was also relevant in the determination of mortality and anomalies. Malformed adults developed from larvae containing from one to three metacercariae.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License