Isolation of Fonsecaea pedrosoi from the shell of the babassu coconut (Orbignya phalerata Martius) in the Amazon region of Maranhão Brazil.

Abstract

Submitted by Ana Maria Fiscina Sampaio ([email protected]) on 2015-03-23T13:58:47Z No. of bitstreams: 1 Marques SG Isolation of Fonsecaea.....pdf: 258977 bytes, checksum: 2305527c0649e27e4a5c9c881c404231 (MD5)Approved for entry into archive by Ana Maria Fiscina Sampaio ([email protected]) on 2015-03-23T14:19:08Z (GMT) No. of bitstreams: 1 Marques SG Isolation of Fonsecaea.....pdf: 258977 bytes, checksum: 2305527c0649e27e4a5c9c881c404231 (MD5)Made available in DSpace on 2015-03-23T14:19:08Z (GMT). No. of bitstreams: 1 Marques SG Isolation of Fonsecaea.....pdf: 258977 bytes, checksum: 2305527c0649e27e4a5c9c881c404231 (MD5) Previous issue date: 2006Federal University of Maranhão. Nucleus of Tropical Pathology and Social Medicine. Department of Pathology. São Luis, MA, BrasilFederal University of Maranhão. Nucleus of Tropical Pathology and Social Medicine. Department of Pathology. São Luis, MA, BrasilFederal University of Maranhão. Nucleus of Tropical Pathology and Social Medicine. Department of Pathology. São Luis, MA, BrasilFederal University of Minas Gerais. Institute of Biological Sciences. Departmant of Microbiology. Belo Horizonte, MG, BrasilFederal University of Paraná. Department of Basic Pathology. Curitiba, PR, BrasilFederal University of Paraná. University Hospital. Department of Community Health. Infectology Service. Curitiba, PR, BrasilFundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador, BA, BrasilFonsecaea pedrosoi, a dematiaceous fungus and the main causative agent of chromoblastomycosis, has been isolated in worldwide from different natural sources in regions where the disease is endemic. In the Amazon region of Maranhão, Brazil, where the disease is prevalent, the breaking of the babassu coconut (Orbignya phalerata Martius) represents an important agricultural activity. In order to determine the presence of this fungus on this plant and on other natural substrates, material was collected in the Fortaleza Village Municipality of Pinheiro, Maranhão, in April and September 2002. A total of 68 samples, including 18 (26.5%) obtained from the shell of the babassu coconut, were analyzed. Samples were cultured using a standard method. Isolates were identified based on macromorphological aspects of the colonies on Sabouraud dextrose agar and based on the micromorphology of the conidia after growth on potato dextrose agar. Exophiala sp. was the most prevalent fungus isolated from the different natural substrates analyzed, while Cladophialophora sp. was only isolated from decomposing wood. Fonsecaea pedrosoi was isolated from one sample of babassu coconut shell suggesting that this coconut represents an important source of infection of chromoblastomycosis during extraction of the plant product in this region

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