Microsporidiosis of Tachinaephagus zealandicus Ashmead (Hymenoptera: Encyrtidae)
Mem. Inst. Oswaldo Cruz
;
97(4): 527-530, June 2002. ilus, tab
Article
in English
| 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
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Rifampin
/
Wasps
/
Albendazole
/
Microsporidiosis
/
Antiprotozoal Agents
Limits:
Animals
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2002
Type:
Article
Affiliation country:
Brazil
/
United States
Institution/Affiliation country:
Center for Medical, Agricultural and Veterinary Entomology/US
/
Universidade Estadual de Campinas/BR
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