J.H.C. Woudenberg , M. Sandoval-Denis , J. Houbraken , K.A. Seifert , R.A. Samson
{"title":"Cephalotrichum and related synnematous fungi with notes on species from the built environment","authors":"J.H.C. Woudenberg , M. Sandoval-Denis , J. Houbraken , K.A. Seifert , R.A. Samson","doi":"10.1016/j.simyco.2017.09.001","DOIUrl":null,"url":null,"abstract":"<div><p>A recent taxonomic revision of <em>Microascaceae</em> with an emphasis on synnematous fungi enabled re-identification of previously isolated indoor strains of <em>Cephalotrichum</em>. All available <em>Cephalotrichum</em> strains from the culture collection of the Westerdijk Institute were studied, 20 originating from the built environment. Phylogenetic relationships were inferred from DNA sequence data from the internal transcribed spacer 1 and 2 and intervening 5.8S nrDNA (ITS), and parts of β-tubulin (<em>tub2</em>) and translation elongation factor 1-α (<em>tef1</em>) genes. Additionally, herbarium material of 14 <em>Cephalotrichum</em> species described from soil in China was studied, and the taxonomy of <em>C. album</em>, not considered in recent revisions, was reevaluated. Sixteen phylogenetic species in <em>Cephalotrichum</em> are distinguished, five described as new species: <em>C. domesticum</em>, <em>C. lignatile</em>, <em>C. telluricum</em>, <em>C. tenuissimum</em> and <em>C. transvaalense</em>. Five <em>Cephalotrichum</em> species occur in the built environment: <em>C. domesticum</em>, <em>C. gorgonifer</em> (formerly known as <em>Trichurus spiralis</em>), <em>C. microsporum</em>, <em>C. purpureofuscum</em>, and <em>C. verrucisporum</em>. Based on the number of isolates, <em>C. gorgonifer</em> (nine strains) is the most common indoor species. The study of the Chinese herbarium material resulted in the acceptance of three additional <em>Cephalotrichum</em> species: <em>C. casteneum</em>, <em>C. ellipsoideum</em>, and <em>C. spirale</em>. Four species are considered nomena dubia (<em>C. cylindrosporum</em>, <em>C. macrosporum</em>, <em>C. ovoideum</em>, and <em>C. robustum</em>), five are placed in synonymy with other <em>Cephalotrichum</em> species (<em>C. acutisporum</em>, <em>C. inflatum</em>, <em>C. longicollum</em>, <em>C. oblongum</em>, <em>C. terricola</em>) and one species, <em>C. verrucipes</em>, is probably a synonym of <em>Penicillium clavigerum</em>. <em>Cephalotrichum columnare</em>, former <em>Doratomyces columnaris</em>, is transferred to <em>Kernia</em>. <em>Cephalotrichum album</em>, formerly known as <em>Doratomyces putredinis</em>, is transferred to <em>Acaulium</em> and redescribed.</p></div>","PeriodicalId":22036,"journal":{"name":"Studies in Mycology","volume":null,"pages":null},"PeriodicalIF":14.1000,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.simyco.2017.09.001","citationCount":"14","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Studies in Mycology","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0166061617300301","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MYCOLOGY","Score":null,"Total":0}
引用次数: 14
Abstract
A recent taxonomic revision of Microascaceae with an emphasis on synnematous fungi enabled re-identification of previously isolated indoor strains of Cephalotrichum. All available Cephalotrichum strains from the culture collection of the Westerdijk Institute were studied, 20 originating from the built environment. Phylogenetic relationships were inferred from DNA sequence data from the internal transcribed spacer 1 and 2 and intervening 5.8S nrDNA (ITS), and parts of β-tubulin (tub2) and translation elongation factor 1-α (tef1) genes. Additionally, herbarium material of 14 Cephalotrichum species described from soil in China was studied, and the taxonomy of C. album, not considered in recent revisions, was reevaluated. Sixteen phylogenetic species in Cephalotrichum are distinguished, five described as new species: C. domesticum, C. lignatile, C. telluricum, C. tenuissimum and C. transvaalense. Five Cephalotrichum species occur in the built environment: C. domesticum, C. gorgonifer (formerly known as Trichurus spiralis), C. microsporum, C. purpureofuscum, and C. verrucisporum. Based on the number of isolates, C. gorgonifer (nine strains) is the most common indoor species. The study of the Chinese herbarium material resulted in the acceptance of three additional Cephalotrichum species: C. casteneum, C. ellipsoideum, and C. spirale. Four species are considered nomena dubia (C. cylindrosporum, C. macrosporum, C. ovoideum, and C. robustum), five are placed in synonymy with other Cephalotrichum species (C. acutisporum, C. inflatum, C. longicollum, C. oblongum, C. terricola) and one species, C. verrucipes, is probably a synonym of Penicillium clavigerum. Cephalotrichum columnare, former Doratomyces columnaris, is transferred to Kernia. Cephalotrichum album, formerly known as Doratomyces putredinis, is transferred to Acaulium and redescribed.
期刊介绍:
The international journal Studies in Mycology focuses on advancing the understanding of filamentous fungi, yeasts, and various aspects of mycology. It publishes comprehensive systematic monographs as well as topical issues covering a wide range of subjects including biotechnology, ecology, molecular biology, pathology, and systematics. This Open-Access journal offers unrestricted access to its content.
Each issue of Studies in Mycology consists of around 5 to 6 papers, either in the form of monographs or special focused topics. Unlike traditional length restrictions, the journal encourages submissions of manuscripts with a minimum of 50 A4 pages in print. This ensures a thorough exploration and presentation of the research findings, maximizing the depth of the published work.