The isolation of keratinophilic fungi from soil and wild animals in South Dakota

Knudtson, W.U.; Robertstad, Gordon W.

doi:10.1007/bf02051784

Cited by 17 publications

(4 citation statements)

References 40 publications

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“…The keratinophilic species Myceliphthora ana• morph of Ctenomyces serratus and M. gypseumfulvum complex (among the most common species Snulle1 on th~ OCCJOn'ell« o/ fu"Ki úr a whut~ld 1 -G. Caretl4 ~tal isolated in this research) are found in soil all over the world ( 11 , 21 , 22). lnstead, Trichophyton gloriae has a limited geographic distribution (2,17). lt is also worth noting the apparent absence of Keratinomyces ajelloi, a species which we recorded in maize and rice field soils (8, 9).…”

Section: Discussionmentioning

confidence: 92%

Studies on the occurrence of fungi in a whea-field. L. Mesophilic, Thermophiuc and keratinophilic fungi in soil

et al. 2019

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Desde Octubre 1982 a Julio 1983 un total de 1772 colonias fúngicas se aislaron desde suelos de trigales en Lombardía. Se estudiaron hongos mesófilos, termófilos y queratinófilos. Entre los mesófilos (59 especies) se detectan como dominantes: Fusarium oxysporum, Lipomyces starkeyi, penicillium janthinellum; como frecuentes, Cryptococcus albidus, Gibberella acuminata, Gliocladium roseum, Rhizopus stolonifer; y otros raros Bahusakala olivaceonigra, Pseudallescheria boydii, Truncotella angustata, Verticillium lecanii, Pyrenochaeta ilicis, Myrotheclum roridum, Drechslera dematioidea. Entre los termófilos (15 especies) como dominantes, Aspergillus fumigatus y Rhizomucor pusillus; frecuentes, Scytalidium thermophilum y thermomyces lanuginosus. Entre los queratinofílicos (11 especies), como dominantes Myceliophthora anamorfo de Ctenomyces serratus, Microsporum gypseum fulvum complex y Chrysosporium merdarium como frecuentes, Chrysosporium keratinophilum y Ctenomyces serratus. Durante Febrero y Abril, la incidencia de todos los grupos aumenta notoriamente.

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Section: Discussionmentioning

confidence: 92%

Studies on the occurrence of fungi in a whea-field. L. Mesophilic, Thermophiuc and keratinophilic fungi in soil

et al. 2019

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“…Phylogenetic analyses revealed the presence of four previously described and four new species of Arthroderma among our 29 isolates recovered from wild rodents. Of the previously described species, three – A. quadrifidum (often referred to in the historical literature as T. terrestre ) ( Alteras 1966 , Smith et al 1969 , Knudtson & Robertstad 1970 , Houin et al 1972 , Hubálek et al 1979 , Mantovani et al 1982 , Gallo et al 2005 , Papini et al 2008 ), A. curreyi and A. cuniculi ( Knudtson & Robertstad 1970 , Hubálek et al 1979 , Chabasse et al 1987 ) – had been previously reported from various rodent species in Europe and North America, whereas we report A. crocatum from rodents for the first time.…”

Section: Discussionmentioning

confidence: 99%

Wild rodents harbour high diversity of Arthroderma

Moulíková¹,

Kolařík²,

Lorch³

et al. 2023

persoonia

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Arthroderma is the most diverse genus of dermatophytes, and its natural reservoir is considered to be soil enriched by keratin sources. During a study on the diversity of dermatophytes in wild small rodents in the Czech Republic, we isolated several strains of Arthroderma. To explore the diversity and ecological significance of these isolates from rodents (n = 29), we characterised the strains genetically (i.e., sequenced ITS, tubb and tef1α), morphologically, physiologically, and by conducting mating experiments. We then compared the rodent-derived strains to existing ITS sequence data from GenBank and the GlobalFungi Database to further investigate biogeography and the association of Arthroderma species with different types of environments. In total, eight Arthroderma species were isolated from rodents, including four previously described species (A. crocatum, A. cuniculi, A. curreyi, A. quadrifidum) and four new species proposed herein, i.e., A. rodenticum, A. simile, A. zoogenum and A. psychrophilum. The geographical distribution of these newly described species was not restricted to the Czech Republic nor rodents. Additional isolates were obtained from bats and other mammals, reptiles, and soil from Europe, North America, and Asia. Data mining showed that the genus has a diverse ecology, with some lineages occurring relatively frequently in soil, whereas others appeared to be more closely associated with live animals, as we observed in A. rodenticum. Low numbers of sequence reads ascribed to Arthroderma in soil show that the genus is rare in this environment, which supports the hypothesis that Arthroderma spp. are not soil generalists but rather strongly associated with animals and keratin debris. This is the first study to utilise existing metabarcoding data to assess biogeographical, ecological, and diversity patterns in dermatophytes.

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“…Trichophyton gallinae is basically a parasite of gallinaceous birds (Knudtson, 1970, Londero, 1968, although infections have also been observed in ducks (Quaglio, 1959). Mammals are occasionally affected, and rare infections have been reported in human beings (Torres, 1956), dogs (Baude, 1943) and monkeys (Gordon, 1968).…”

Section: Introductionmentioning

confidence: 99%