Notes on Gymnoascaceae. II. Some Gymnoascaceae and Keratinophilic Fungi from Utah

Orr, G. F.; Kuehn, Harold H.

doi:10.2307/3758013

Cited by 9 publications

(4 citation statements)

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“…Gymnoascus exasperates is unique in the genus as it is only known from the asexual morph . The sexual morph of G. exasperatus was not observed despite repeated attempts using OA, PDA, and SNA media, as well as human hair and nails as inducer ( Orr & Kuehn 1972 ).…”

Section: Resultsmentioning

confidence: 99%

Culturable mycobiota from Karst caves in China, with descriptions of 20 new species

Zhang¹,

Liu²,

Zhou³

et al. 2017

persoonia

115

132

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Karst caves are distinctly characterised by darkness, low to moderate temperatures, high humidity, and scarcity of organic matter. During the years of 2014–2015, we explored the mycobiota in two unnamed Karst caves in Guizhou province, China, and obtained 563 fungal strains via the dilution plate method. Preliminary ITS analyses of these strains suggested that they belonged to 246 species in 116 genera, while 23.5 % were not identified to species level. Among these species, 85.8 % (211 species) belonged to Ascomycota; 7.3 % (18 species) belonged to Basidiomycota; 6.9 % (17 species) belonged to Mucoromycotina. The majority of these species have been previously known from other environments, mostly from plants or animals as pathogens, endophytes or via a mycorrhizal association. We also found that 59 % of these species were discovered for the first time from Karst caves, including 20 new species that are described in this paper. The phylogenetic tree based on LSU sequences revealed 20 new species were distributed in six different orders. In addition, ITS or multi-locus sequences were employed to infer the phylogenetic relationships of new taxa with closely related allies. We conclude that Karst caves encompass a high fungal diversity, including a number of previously unknown species. Novel species described include: Amphichorda guana, Auxarthronopsis guizhouensis, Biscogniauxia petrensis, Cladorrhinum globisporum, Collariella quadrum, Gymnoascus exasperatus, Humicola limonisporum, Metapochonia variabilis, Microascus anfractus, Microascus globulosus, Microdochium chrysanthemoides, Paracremonium variiforme, Pectinotrichum chinense, Phaeosphaeria fusispora, Ramophialophora globispora, Ramophialophora petraea, Scopulariopsis crassa, Simplicillium calcicola, Volutella aeria, and Wardomycopsis longicatenata.

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Section: Resultsmentioning

confidence: 99%

Culturable mycobiota from Karst caves in China, with descriptions of 20 new species

Zhang¹,

Liu²,

Zhou³

et al. 2017

persoonia

115

132

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“…Diagnosis : Pseudomalbranchea gemmata is phylogenetically close to Uncinocarpus reesii and Amauroascus volatilis-patellis . However, it does not produce a sexual morph and it differs from U. reessi and A. volatilis-patellis by the production of longer arthroconidia (4.0–11.0 × 2.0–3.5 μm in P. gemmata vs. 3.5–6.0 × 2.5–3 μm in U. reessi , and 4.0–5.4 × 2.0–3.0 in A. volatilis-patellis ; Orr and Kuehn 1972 , Sigler and Carmichael 1976 , Currah 1985 ). As well as A. volatilis-patellis , P. gemmata lacks appendages, which are present and similar to the asexual morph in U. reessi (Currah 1985 ).…”

Section: Resultsmentioning

confidence: 99%

A revision of malbranchea-like fungi from clinical specimens in the United States of America reveals unexpected novelty

et al. 2021

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The fungi of the order Onygenales can cause important human infections; however, their taxonomy and worldwide occurrence is still little known. We have studied and identified a representative number of clinical fungi belonging to that order from a reference laboratory in the USA. A total of 22 strains isolated from respiratory tract (40%) and human skin and nails (27.2%) showed a malbranchea-like morphology. Six genera were phenotypically and molecularly identified, i.e. Auxarthron/Malbranchea (68.2%), Arachnomyces (9.1%), Spiromastigoides (9.1%), and Currahmyces (4.5%), and two newly proposed genera (4.5% each). Based on the results of the phylogenetic study, we synonymized Auxarthron with Malbranchea, and erected two new genera: Pseudoarthropsis and Pseudomalbranchea. New species proposed are: Arachnomyces bostrychodes, A. graciliformis, Currahmyces sparsispora, Malbranchea gymnoascoides, M. multiseptata, M. stricta, Pseudoarthropsis crassispora, Pseudomalbranchea gemmata, and Spiromastigoides geomycoides, along with a new combination for Malbranchea gypsea. The echinocandins showed the highest in vitro antifungal activity against the studied isolates, followed by terbinafine and posaconazole; in contrast, amphotericin B, fluconazole, itraconazole and 5-fluorocytosine were less active or lacked in vitro activity against these fungi.

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“…Arthroderma cuniculi C.O. Dawson and Ctenomyces serratus Eidam) has been isolated from herbivore dung, and rodent, insectivorous and fructivorous mammalian, and bird droppings (Apinis 1964;Orr and Kuehn 1972;Currah 1985), which contain keratin deriving from air or soil sources and/or from feeding remnants.…”

Section: Discussionmentioning

confidence: 99%

A comparative study of Neogymnomyces virgineus, a new keratinolytic species from dung, and its relationships with the Onygenales

Doveri¹,

Pecchia²,

Vergara³

et al. 2011

Fungal Diversity

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Isolations of onygenalean fungi were made recently from different dung samples from Italy. A striking snowwhite species with gymnothecial ascomata, developed in damp chamber on dormouse dung collected in a cave, was subjected to keratinolytic tests and morphological, cultural, and phylogenetic studies. The keratinolytic ability of this species, associated with a Chrysosporium anamorph and a sexual state of appendiculate reticuloperidia and oblate ascospores, allows it to be accomodated in Onygenaceae. White ascomata, blunt or subcapitate peridial appendages, pitted ascospores, and tuberculate conidia suggest it to be a new Neogymnomyces, and this was confirmed by parsimony analyses of LSU and ITS nrDNA sequences. Following recent phylogenetic analyses, the morphological and physiological features of order Onygenales and its families are re– examined and discussed. After the introduction of a new species, Neogymnomyces is reviewed and compared with all other genera in Onygenaceae. The Chrysosporium imperfect state of Neogymnomyces virgineus is described and compared to the anamorph of N. demonbreunii. It is also compared to the atypical Chrysosporium merdarium and to several other Chrysosporium species with echinulate to verrucose–tuberculate conidia, isolated from guano, dung, and nitrogen–rich soils in caves. The onygenalean fungi isolated from any kind of dung are discussed and their facultative coprophily ascribed to variable faecal contents of keratin or other degradable substances. A key to the families and genera of the Onygenales is provided

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Notes on Gymnoascaceae. II. Some Gymnoascaceae and Keratinophilic Fungi from Utah

Cited by 9 publications

References 0 publications

Culturable mycobiota from Karst caves in China, with descriptions of 20 new species

Culturable mycobiota from Karst caves in China, with descriptions of 20 new species

A revision of malbranchea-like fungi from clinical specimens in the United States of America reveals unexpected novelty

A comparative study of Neogymnomyces virgineus, a new keratinolytic species from dung, and its relationships with the Onygenales

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