Evaluation of pathogenic fungi occurrence in traumatogenic structures of freshwater fish

Fungal infections in human skin, such as sporotrichosis, can occur after fish induced trauma. This work aimed to identify fungi in freshwater fish that are pathogenic to humans. Extraction of dental arches from Serrassalmus maculatus (piranha) and Hoplias malabaricus (wolf fish), stings from Pimelod...

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Published in:Revista da Sociedade Brasileira de Medicina Tropical 2011-03, Vol.44 (2), p.182-185
Main Authors: Leme, Fabio Caetano Oliveira, Negreiros, Marcos Mendes de Barros, Koga, Fernando Akira, Bosco, Sandra de Moraes Gimenes, Bagagli, Eduardo, Haddad Junior, Vidal
Format: Article
Language:English
Subjects:
Animals
Brazil
Candida - classification
Candida - genetics
Candida - pathogenicity
Candida spp
DNA, Fungal - analysis
DNA, Ribosomal - analysis
Fisheries
Fishes - classification
Fishes - microbiology
Freshwater fish
Fungos patogênicos
Humans
Micoses humanas
Oligonucleotide Array Sequence Analysis
Peixes fluviais
Pescadores
Phoma
Rivers
TROPICAL MEDICINE
Yarrowia - genetics
Yarrowia - pathogenicity
Yeasts
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Summary:Fungal infections in human skin, such as sporotrichosis, can occur after fish induced trauma. This work aimed to identify fungi in freshwater fish that are pathogenic to humans. Extraction of dental arches from Serrassalmus maculatus (piranha) and Hoplias malabaricus (wolf fish), stings from Pimelodus maculatus (mandis catfish), dorsal fin rays from Plagioscion spp. (corvina) and Tilapia spp., for culture in Mycosel agar. Some cultures were submitted to DNA extraction for molecular identification by sequencing ITS-5.8S rDNA. Cultures identified most yeast as Candida spp., while sequencing also permitted the identification of Phoma spp. and Yarrowia lipolytica. While the search for S. schenckii was negative, the presence of fungus of the genera Phoma and Candida revealed the pathogenic potential of this infection route. The genus Phoma is involved in certain forms of phaeohyphomycosis, a subcutaneous mycosis caused by dematiaceous fungi, with reports of infections in human organs and systems. Traumatizing structures of some freshwater fish present pathogenic fungi and this may be an important infection route that must be considered in some regions of Brazil, since there are a large number of a fisherman in constant contact with traumatogenic fish.
ISSN:0037-8682
1678-9849
1678-9849
DOI:10.1590/S0037-86822011005000007