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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 105, No. 2, 2010, pp. 127-131
Bioline Code: oc10022
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 105, No. 2, 2010, pp. 127-131

 en Biological activity of the mite Sancassania check for this species in other resources (Acari: Acaridae) from bat guano associated with the pathogenic fungus Histoplasma capsulatum check for this species in other resources
Estrada-Bárcenas, Daniel A.; Palacios-Vargas, José G.; Estrada-Venegas, Edith; Klimov, Pavel B.; Martínez-Mena, Alejandro & Taylor, Maria Lucia

Abstract

Mites and the mammal pathogenic fungus Histoplasma capsulatum check for this species in other resources are the major components of bat guano microbiota. Interactions between mites and H. capsulatum were evaluated under laboratory conditions. Acarid mites, mainly Sancassania check for this species in other resources , were the most abundant microarthropod in the sampled guano of the Mexican bat Tadarida brasiliensis mexicana check for this species in other resources and, based on its morphology, Sancassania sp. was similar to the cosmopolitan species Sancassania sphaerogaster check for this species in other resources . The mycophagous and vectoring activities of this mite were tested for H. capsulatum and two other fungal species, Sporothrix schenckii check for this species in other resources (pathogenic) and Aspergillus sclerotiorum check for this species in other resources (non-pathogenic). S. ca. sphaerogaster was able to reproduce in H. capsulatum and S. schenckii colonies, multiplying in great numbers under controlled fungal mycelial-phase culture conditions. H. capsulatum colonies were completely destroyed after 14 days of in vitro interaction with mites. In contrast, S. ca. sphaerogaster did not reproduce in A. sclerotiorum cultures. S. ca. sphaerogaster was found vectoring H. capsulatum, but not the two other fungal species studied.

Keywords
mites, Sancassania sp., Histoplasma capsulatum, bat guano

 
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