Distribution of dermatophytes and other related fungi in Jaipur city, with particular reference to soil pH

Jain, Nutan; Sharma, Meenakshi

doi:10.1111/j.1439-0507.2009.01751.x

Cited by 30 publications

(25 citation statements)

References 15 publications

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“…Some have a wide range of tolerance for acidic to alkaline soils 2 7 14 16 . However, studies of soil pH in relation to occurrence of dermatophytes are uncommon in Brazil.…”

Section: Introductionmentioning

confidence: 99%

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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“…Some have a wide range of tolerance for acidic to alkaline soils 2 7 14 16 . However, studies of soil pH in relation to occurrence of dermatophytes are uncommon in Brazil.…”

Section: Introductionmentioning

confidence: 99%

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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“…This dermatophyte is predominant in very wet soils, a condition which is not present in the soils of Djerba [1,5]. T. terrestre, which was frequent in some studies [4,8,9,16,23], was not isolated in ours and also absent in others [9,16,20,22]. This difference in keratinophilic fungi distribution may be due to the distinct climatic conditions prevalent in these areas [9,10].…”

Section: Discussionmentioning

confidence: 71%

“…It is recognized that their distribution and their dominant species vary according to the soil of different locations [6,8,12,14,16,23]. Only 20.6% of Djerba soils yielded keratinophilic fungi.…”

Section: Discussionmentioning

confidence: 99%

Epidemiological investigation of keratinophilic fungi from soils of Djerba (Tunisia)

Anane¹

2012

Journal de Mycologie Médicale

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“…No keratinophilic fungi growth was reported below in soil with pH 5.0 and above 8.0. According to a research conducted by Jain and Sharma, most of the keratinophilic fungi were isolated from pH 6.5 to 8.5 (25). Meinhof et al (26) and Kaben et al (27) suggested that highly acidic soils were mostly a poor source of keratinophilic fungi.…”

Section: Discussionmentioning

confidence: 99%

Isolation of Keratinophilic Fungi and Aerobic Actinomycetes From Park Soils in Gorgan, North of Iran

Malek

Moosazadeh

Hanafi

et al. 2013

Jundishapur J Microbiol

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Background: Keratinophilic fungi are a group of fungi that colonize in various keratinous substrates and degrade them to the components with low molecular weight. This study was conducted to determine the prevalence of keratinophilic fungi and aerobic Actinomycetes in soil of city parks in Gorgan. Objectives: In this study, we surveyed the city park soils of Gorgan (a northern province of Iran) to determine the identities and diversity of soil aerobic Actinomycetes, keratinophilic and non-keratinophilic fungi. Materials and Methods: A total of 244 soil samples were collected from 22 different parks of Gorgan, North of Iran. The samples were collected from the superficial layer with depth not exceeding than 0-10 cm in sterile polyethylene bags. We used hair bait technique for isolation keratinophilic fungi. The colonies identified by macroscopic and microscopic characterization after slide culturing. Actinomycetes were isolated by antibiotic dilution methods and detected by using physiological tests such as Lysozyme, Casein, Xanthine, Hypoxanthine, Gelatin, Urea Broth, and modified acid-fast stain. Results: Totally, 75 isolates of aerobic Actinomycetes were detected that Actinomadura madurae and Nocardia asteroides were the most prevalent strains, with 14.66 and 28% prevalence respectively. Microsporum gypseum was more frequent than other keratinophilic fungi (22.96%) and Aspergillus spp. was the most species of saprophyte fungi (15.92%). Conclusions: This study showed that the collected soil from studied areas was rich of keratinophilic fungi and Actinomycetes, therefore hygiene protocol should be taken to prevent the spread of pathogenic and saprophytes fungi in the environment of susceptible person.

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Distribution of dermatophytes and other related fungi in Jaipur city, with particular reference to soil pH

Cited by 30 publications

References 15 publications

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

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

Epidemiological investigation of keratinophilic fungi from soils of Djerba (Tunisia)

Isolation of Keratinophilic Fungi and Aerobic Actinomycetes From Park Soils in Gorgan, North of Iran

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