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Original Article

Role of bats in the ecology of Paracoccidioides brasiliensis: The survival of Paracoccidioides brasiliensis in the intestinal tract of frugivorous bat, Artibeus lituratus

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Pages 273-282 | Published online: 09 Jul 2009
 

Abstract

The fruit-eating bat, Artibeus lituratus, was fed known quantities of viable yeast cells and mycelial particles of Paracoccidioides brasiliensis in an attempt to assess the role of this animal in the distribution of this agent in nature. Results of mycosel cultures of the stomach, upper intestine, lower intestine and rectum clearly showed that the fungal cells were unable to survive more than 8 hours in the digestive tract of the bat. The mycelial particles were more susceptible than the yeast and were killed before passing to the rectum. The fungus died rapidly in the voided fecal material. These findings indicate the improbability of isolating P. brasiliensis from the digestive tract of wild captured bats and show that A. lituratus probably plays no role in the distribution of this fungus in nature.

Astracto

El murciélago frugívoro, Artibeus lituratus fué inoculado oralmente con cantidades conocidas de levaduras y micelios viables de Paracoccidioides brasilie isis, para determinar el papel de éste animal en la distribución del hongo en la naturaleza. El resultado de los cultivos del estómago, intestino delgado, intestino grueso y el recto en micosel, demostró claramente que el hongo no puede sobre vivir en el tracto digestivo de este murciélago por más de 8 horas. El micelio fué susceptible que la levadura y no llegó viable al recto. El hongo muere rápidamente en la materia fecal. Estos hallazgos indican que el aislamiento de P. brasiliensis del tracto digestivo de murciélagos salvajes, es muy improbable y que por lo tanto el A. lituratus probablemente no tiene ninguna importancia en la distribución de éste hongo en la naturaleza.

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