Geophilic dermatophytes recovered from Rio Grande do Sul soil

Fischman, Olga; Ramos, Cecy D.

doi:10.1007/bf02053446

Cited by 4 publications

(5 citation statements)

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“…However, in Recife, Pernambuco State, 5.6% isolation was observed for this species at alkaline pH 16 . High rates of M. gypseum were observed in soils from Rio Grande do Sul, Brazil (79%) 8 , Argentina (89%) 13 , India (64%) 4 , Kuwait (50%) in parks and gardens 1 , and Italy (39%) 25 .…”

Section: Discussionmentioning

confidence: 97%

“…T. ajelloi was isolated from soils of the South and Southeast regions of Brazil 8 10 29 . ALVAREZ et al 2 reported an isolation rate of 66% for this fungus in soil of Argentina.…”

Section: Discussionmentioning

confidence: 99%

“…There have been reports of the isolation of T. ajelloi , T. rubrum , T. mentagrophytes , T. verrucosum , T. terrestre , T. tonsurans, T. simii, T. schoenleinii, M. gypseum , M. canis, M. audouinii, M. nanum , M. cookei and/or E. floccosum , from the soils of various Brazilian states and locals around the world 8 20 24 25 30 32 34 .…”

Section: Introductionmentioning

confidence: 99%

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Distribution of Dermatophytes From Soils of Urban and Rural Areas of Cities of Paraiba State, Brazil

Pontes

Oliveira

Guerra

et al. 2013

Rev. Inst. Med. trop. S. Paulo

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SUMMARYThe dermatophytes, keratinophilic fungi, represent important microorganisms of the soil microbiota, where there are cosmopolitan species and others with restricted geographic distribution. The aim of this study was to broaden the knowledge about the presence of dermatophytes in soils of urban (empty lots, schools, slums, squares, beaches and homes) and rural areas and about the evolution of their prevalence in soils of varying pH in cities of the four mesoregions of Paraiba State, Brazil. Soil samples were collected from 31 cities of Paraiba State. Of 212 samples, 62% showed fungal growth, particularly those from the Mata Paraibana mesoregion (43.5%), which has a tropical climate, hot and humid. Soil pH varied from 4.65 to 9.06, with 71% of the growth of dermatophytes occurring at alkaline pH (7.02 -9.06) (ρ = 0.000). Of 131 strains isolated, 57.3% were geophilic species, particularly Trichophyton terrestre (31.3%) and Mycrosporum gypseum (21.4%). M. nanum and T. ajelloi were isolated for the first time in Paraiba State. The zoophilic species identified were T. mentagrophytes var. mentagrophytes (31.3 %) and T. verrucosum (7.6 %), and T. tonsurans was isolated as an anthropophilic species. The soils of urban areas including empty lots, schools, slums and squares of cities in the mesoregions of Paraiba State were found to be the most suitable reservoirs for almost all dermatophytes; their growth may have been influenced by environmental factors, soils with residues of human and/or animal keratin and alkaline pH.

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Section: Discussionmentioning

confidence: 97%

“…T. ajelloi was isolated from soils of the South and Southeast regions of Brazil 8 10 29 . ALVAREZ et al 2 reported an isolation rate of 66% for this fungus in soil of Argentina.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Distribution of Dermatophytes From Soils of Urban and Rural Areas of Cities of Paraiba State, Brazil

Pontes

Oliveira

Guerra

et al. 2013

Rev. Inst. Med. trop. S. Paulo

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“…Filogeneticamente, os fungos saprofíticos do solo, através de adaptações progressivas, originaram os outros grupos, dado o desenvolvimento da capacidade de degradar a queratina, bem como a freqüente associação de animais e do homem a ambientes onde os fungos estão presentes (FURTADO et al, 1987;BÁRSENA-ASENSIO e CABO et al, 1996).…”

Section: Aspectos Ecológicos Dos Dermatófitosunclassified

“…Em solos com pH neutro ou alcalino há um desenvolvimento acentuado de espécies de dermatófitos. Correlacionando-se este fato com a ação enzimática de proteinases de dermatófitos, que apresentam atividade em pH variando de 4,0 a 10,0, Alvarez et al (1986) (FURTADO et al, 1987, PONTES et al, 2002, BRILHANTE et al, 2005. Gambale et al (1987) (30,8%) e Microsporum canis (12,6%).…”

Section: Dermatófitos No Brasilunclassified