1. Selective isolation of agents of chromoblastomycosis from insect-associated environmental sources
- Author
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Vânia Aparecida Vicente, Cristiano Menezes, Leandro F. Moreno, Derlene Attili-Angelis, Gheniffer Fornari, Débora do Rocio Klisiowicz, Bruna da Silva Soley, Gabriela Schneider, Amanda Bombassaro, Conceição de Maria Pedrozo e Silva de Azevedo, Bruna Jacomel Favoreto de Souza Lima, Renata R. Gomes, Sybren de Hoog, Jade Mariane Barbosa Soares, Morgana Ferreira Voidaleski, Federal University of Paraná, University Center Campo Real, Universidade Federal do Paraná (UFPR), Federal University of Maranhão, Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), Westerdijk Fungal Biodiversity Institute, Universidade Estadual Paulista (Unesp), Universidade Estadual de Campinas (UNICAMP), and Canisius Wilhelmina Hospital
- Subjects
0106 biological sciences ,Insecta ,Scaptotrigona postica ,Insect ,Fonsecaea pedrosoi ,01 natural sciences ,Nasutitermes sp ,Pathology, Molecular ,Tenebrio ,Phylogeny ,Soil Microbiology ,media_common ,Chaetothyriales ,0303 health sciences ,Chromoblastomycosis ,Black yeasts ,Bees ,ANT ,Infectious Diseases ,Models, Animal ,Cladosporium ,Atta laevigata ,media_common.quotation_subject ,Genes, Fungal ,Fonsecaea brasiliensis ,Isoptera ,Biology ,Microbiology ,03 medical and health sciences ,Ascomycota ,Genetics ,medicine ,Animals ,Humans ,Rats, Wistar ,Ecology, Evolution, Behavior and Systematics ,Disease Reservoirs ,030304 developmental biology ,Ants ,Inoculation ,fungi ,medicine.disease ,Selective isolation ,biology.organism_classification ,Rats ,Fonsecaea ,Melipona flavolineata ,010606 plant biology & botany - Abstract
Made available in DSpace on 2020-12-12T01:57:45Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-03-01 National Council for Scientific Research Federal Agency for Scientific Organizations Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Chromoblastomycosis is a neglected disease characterized by cutaneous, subcutaneous or disseminated lesions. It is considered an occupational infectious disease that affects mostly rural workers exposed to contaminated soil and vegetal matter. Lesions mostly arise after a traumatic inoculation of herpotrichiellaceous fungi from the Chaetothyriales order. However, the environmental niche of the agents of the disease remains obscure. Its association with insects has been predicted in a few studies. Therefore, the present work aimed to analyze if social insects, specifically ants, bees, and termites, provide a suitable habitat for the fungi concerned. The mineral oil flotation method was used to isolate the microorganisms. Nine isolates were recovered and phylogenetic analysis identified two strains as potential agents of chromoblastomycosis, i.e., Fonsecaea pedrosoi CMRP 3076, obtained from a termite nest (n = 1) and Rhinocladiella similis CMRP 3079 from an ant exoskeleton (n = 1). In addition, we also identified Fonsecaea brasiliensis CMRP 3445 from termites (n = 1), Exophiala xenobiotica CMRP 3077 from ant exoskeleton (n = 1), Cyphellophoraceae CMRP 3103 from bees (n = 1), Cladosporium sp. CMRP 3119 from bees (n = 1), Hawksworthiomyces sp. CMRP 3102 from termites (n = 1), and Cryptendoxyla sp. from termites (n = 2). The environmental isolate of F. pedrosoi CMRP 3076 was tested in two animal models, Tenebrio molitor and Wistar rat, for its pathogenic potential with fungal retention in T. molitor tissue. In the Wistar rat, the cells resembling muriform cells were observed 30 d after inoculation. Graduate Program in Microbiology Parasitology and Pathology Federal University of Paraná University Center Campo Real Federal University of Paraná Graduate Program in Pharmacology UFPR Medical Department Federal University of Maranhão Embrapa Amazônia Oriental CPATU Westerdijk Fungal Biodiversity Institute Department of Biochemistry and Microbiology Institute of Biological Sciences UNESP-São Paulo State University Division of Microbial Resources CPQBA University of Campinas Center of Expertise in Mycology of Radboud University Medical Center Canisius Wilhelmina Hospital Department of Biochemistry and Microbiology Institute of Biological Sciences UNESP-São Paulo State University CNPq: 312811/2018–7 CAPES: Brazil CAPES: Finance Code 001, Brasilia
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- 2020
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