Microsporidiosis of Tachinaephagus zealandicus Ashmead (Hymenoptera: Encyrtidae)
Mem. Inst. Oswaldo Cruz
;
97(4): 527-530, June 2002. ilus, tab
Artigo
em Inglês
| LILACS
| ID: lil-314509
ABSTRACT
An undescribed microsporidium was found infecting Tachinaephagus zealandicus, a gregarious parasitoid that attacks third instar larvae of muscoid flies. Spores were present in all body regions and in all stages of development. Infected adults contained an average of 3.75 x 10(5) spores, and the pathogen was vertically transmitted to progeny. Infected female adults were fed either rifampicin or albendazole mixed with honey to determine the effectiveness of these drugs in preventing vertical transmission. After eight days of feeding on rifampicin the parasitoids produced progeny of which only 37 percent were infected. In contrast, albendazole-treated and untreated females produced progeny that were 97 percent and 100 percent infected, respectively. Healthy and infected colonies were established and studies were conducted to determine the mechanisms of transmission. It was observed that the efficiency of vertical (maternal) transmission was 96.3 percent. Uninfected parasitoid immatures also became infected when they shared superparasitized hosts with infected immatures. The method of transmission within superparasitized hosts is not known
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Rifampina
/
Vespas
/
Albendazol
/
Microsporidiose
/
Antiprotozoários
Limite:
Animais
Idioma:
Inglês
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
Medicina Tropical
/
Parasitologia
Ano de publicação:
2002
Tipo de documento:
Artigo
País de afiliação:
Brasil
/
Estados Unidos
Instituição/País de afiliação:
Center for Medical, Agricultural and Veterinary Entomology/US
/
Universidade Estadual de Campinas/BR
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