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Microsporum aenigmaticum sp nov from M. gypseum complex, isolated as a cause of tinea corporis
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SYSNO ASEP 0436029 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Microsporum aenigmaticum sp nov from M. gypseum complex, isolated as a cause of tinea corporis Tvůrce(i) Hubka, Vít (MBU-M) ORCID
Dobiášová, S. (CZ)
Dobiáš, R. (CZ)
Kolařík, Miroslav (MBU-M) RID, ORCIDZdroj.dok. Medical Mycology. - : Oxford University Press - ISSN 1369-3786
Roč. 52, č. 4 (2014), s. 387-396Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Arthroderma ; geophilic dermatophytes ; keratinophilic fungi Vědní obor RIV EE - Mikrobiologie, virologie CEP EE2.3.20.0055 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EE2.3.30.0003 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora MBU-M - RVO:61388971 UT WOS 000339913600007 DOI 10.1093/mmy/myt033 Anotace An undescribed Microsporum species was isolated from skin scales recovered from a 40-mm large, annular, scaling lesion on the wrist of a 46-year-old woman. The risk factors for dermatophyte infection in the patient were frequent work in the garden, hunting, and contact with dogs and horses. Direct microscopic examination of the scales revealed the presence of dermatophyte hyphae; when the samples were cultured, a morphologically similar fungus grew on all slants in pure culture. Both of these findings strongly suggested that the isolate was the true causal agent of infection. The possible geophilic nature of the species was based on phylogenetic analysis (internal transcribed spacer region of rDNA and beta-tubulin gene) that placed it in between species of the M. gypseum complex. However, its divergencies from all other Microsporum species exceeded 4% base pairs. Based on beta-tubulin phylogeny, the isolated species is a sister to M. gypseum. The species produces abundant chlamydospores and clumps of hyphae similar to those of ascomatal primordia but no conidia and ascospores. The species was unable to grow at 37 degrees C and does not grow on T6 basal medium, which is unlike other Microsporum species; hair perforation and urease tests were positive. The addition of histidine to the T6 medium resulted in rapid growth of the fungus. The phylogenetic evidence, morphology, growth parameters, and physiology justified the proposal that the isolate is a new species, M. aenigmaticum, sp. nov. Pracoviště Mikrobiologický ústav Kontakt Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Rok sběru 2015
Počet záznamů: 1