Mites and the mammal pathogenic fungus Histoplasma capsulatum
are the major components of bat guano microbiota. Interactions between mites and H. capsulatum
were evaluated under laboratory
conditions. Acarid mites, mainly Sancassania
, were the
most abundant microarthropod in the sampled guano of the Mexican bat Tadarida brasiliensis mexicana
and, based on its morphology, Sancassania sp.
was similar to the cosmopolitan species Sancassania sphaerogaster
The mycophagous and vectoring activities of this mite were tested for H. capsulatum
and two other fungal species, Sporothrix schenckii
(pathogenic) and Aspergillus sclerotiorum
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.
did not reproduce in A. sclerotiorum
was found vectoring H. capsulatum
, but not the two other fungal species studied.