Mycological Diagnosis of Animal Dermatophytoses

Dvorak, Jaroslav; Otčenášek, M

doi:10.1007/978-94-010-3426-5

Cited by 32 publications

(9 citation statements)

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“…The species are thermotolerant and alkalotolerant, and show keratinolytic abilities (Kozakiewicz, Smith 1994;Santos et al 1996;Filipello-Marchisio et al 2000). Pathogenic strains of these fungi cause lung aspergillosis (A. fumigatus) and onychomycosis (S. brevicaulis) (Dvořak, otčenašek 1969). Aspergillus fumigatus is very frequently isolated from nests of birds, their ontocoenoses, plumage and pellets (Hubalek 1974;Kruszewicz et al 1995;Shin et al 1996;Korniłłowicz-Kowalska, Kitowski 2009).…”

Section: Discussionmentioning

confidence: 99%

“…Pathogenic strains of these fungi, in particular species such as Microsporum gypseum, M. cookei, Chrysosporium keratynophilum, cause dermatomycoses in humans and animals. Ubiquistic moulds with keratinolytic abilities are causal agents of opportunistic mycoses such as systemic mycoses (A. fumigatus) or superficial mycoses, e.g., nail mycoses (S. brevicaulis) (Dvořak, otčenašek 1969).…”

Section: Introductionmentioning

confidence: 99%

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Geophilic dermatophytes and other keratinophilic fungi in the nests of wetland birds

Korniłłowicz-Kowalska

Kitowski

Iglik

2013

Acta Mycol

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The frequency and species diversity of keratinophilic fungi in 38 nests of nine species of wetland birds were examined. Nine species of geophilic dermatophytes and 13 Chrysosporium species were recorded. Ch. keratinophilum, which together with its teleomorph (Aphanoascus fulvescens) represented 53% of the keratinolytic mycobiota of the nests, was the most frequently observed species. Chrysosporium tropicum, Trichophyton terrestre and Microsporum gypseum populations were less widespread. The distribution of individual populations was not uniform and depended on physical and chemical properties of the nests (humidity, pH).

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Geophilic dermatophytes and other keratinophilic fungi in the nests of wetland birds

Korniłłowicz-Kowalska

Kitowski

Iglik

2013

Acta Mycol

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“…Somewhat similar morphology can be found in non-related species outside the complex, e.g., relatives of T. schoenleinii and T. mentagrophytes, some strains of T. equinum and M. aenigmaticum [16,21,22]. All of these species can be differentiated from T. verrucosum by different nutritional requirements and the inability to grow or slower growth at 37°C in comparison with 25°C (Table 1 and Gräser et al [9]).…”

Section: Clinical Manifestation and Therapymentioning

confidence: 93%

Equine Dermatophytosis due to Trichophyton bullosum, a Poorly Known Zoophilic Dermatophyte Masquerading as T. verrucosum

Lysková¹,

Hubka

Petricakova

et al. 2015

Mycopathologia

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Trichophyton bullosum is a zoophilic dermatophyte from the Arthroderma benhamiae complex with a poorly known distribution. In this study, we report a case of dermatophytosis caused by T. bullosum in a 6-year-old male horse who had a skin lesion located in a saddle area. The infection spread rapidly to the upper chest and to both sides of the trunk. The dermatophyte was isolated in culture and identified by sequence analysis of the internal transcribed spacer regions (ITS rDNA). To date, this is the first verified case of animal infection due to T. bullosum in Europe following the 2012 report of human infection in France. We hypothesize that this species can be relatively common in horses and donkeys, but it is confused with other zoophilic species responsible for infections with similar clinical manifestations, and when isolated in culture, it is misidentified as the phenotypically similar T. verrucosum. Previous cases of dermatophytosis caused by T. verrucosum-like dermatophytes in horses and donkeys were reviewed together with human infections transmitted from these animals. This summary estimates possible distribution width of T. bullosum. The taxonomy of T. verrucosum-like dermatophytes is extremely difficult due to lack of original material and poor morphology of species. Molecular genetic methods are necessary to verify the identification of these fungi. ITS1 or ITS2 region of rDNA alone is sufficient for correct identification.

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“…Fungi were isolated using the plate dilution method. Martin medium (Martin, 1950) was used for saprotrophic fungi, Waksman medium with antibiotics (Korniłłowicz-Kowalska et al, 2010) was chosen for cellulolytic fungi, Sabouraud medium (with antibacterial antibiotics) (Dvořak and Otčenašek, 1969) was applied to fungi potentially pathogenic to humans and animals, and Nash and Snyder medium (Nash and Snyder, 1962) was used to isolate Fusarium believed to be potentially phytopathogenic. Cultures were incubated at temperatures of 26 ºC, 26 ºC, 30 ºC and 26 ºC, respectively (Martin, Waksman, Sabouraud and Nash and Snyder media) for a period of 3-7 days.…”

Section: Isolation Of Fungi From Nestsmentioning

confidence: 99%

Fungal Frequency and Diversity in the Nests of Wetland Birds from Poland: Relationships between Birds, Nest Properties and Inhabiting Fungi

Korniłłowicz-Kowalska

Kitowski

Bohacz

et al. 2018

Avian Biology Research

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Avian nests are a unique and sometimes extreme environment in which fungi occur. In this study, a correlation was recorded between the breeding biology and ecology of wetland birds and the biology and ecology of fungi in nests of wetland birds. The abundance of ecophysiologically diversified fungi, i.e. saprotrophs, cellulolytic fungi, and potentially zoo- and phytopathogenic fungi, was shown to be significantly higher in large nests, while species diversity (Shannon index) of fungi in nests with similar properties was not significant. The taxonomic structure (genus and species composition) and the spatial structure (frequency) of the nest mycobiota are mainly affected by nests’ specific physical and chemical properties which depend on the breeding and feeding preferences of the birds. In dry, highly sun-exposed nests of the Grey Heron (Ardea cinerea), a species that establishes breeding colonies high in the trees, mainly feeds on fish and has young who defecate into the nest, populations of xerophilic, alkali- and thermotolerant fungi, including keratinolytic fungi (Chrysosporium tropicum), developed. In the nests of the Mute Swan (Cygnus olor), a precocial species which constructs very large, relatively low-hygiene nests at the water's edge and which feeds on plant food, populations of hydrophilic and thermotolerant fungi, including highly cellulolytic fungi such as Chaetomium globosum, were detected. Nests of other small species of wetland birds, whose nests are also located on water but contain smaller amounts of animal-derived material, did not differ significantly mycologically and were colonised mainly by species such as Trichoderma viride and Penicillium purpurogenum, ubiquitous fungi with very high water and thermotolerant requirements.

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Mycological Diagnosis of Animal Dermatophytoses

Cited by 32 publications

References 0 publications

Geophilic dermatophytes and other keratinophilic fungi in the nests of wetland birds

Geophilic dermatophytes and other keratinophilic fungi in the nests of wetland birds

Equine Dermatophytosis due to Trichophyton bullosum, a Poorly Known Zoophilic Dermatophyte Masquerading as T. verrucosum

Fungal Frequency and Diversity in the Nests of Wetland Birds from Poland: Relationships between Birds, Nest Properties and Inhabiting Fungi

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