Diversity and taxonomy of Chaetomium and chaetomium-like fungi from indoor environments

X. W. Wang; J. Houbraken; J. Z. Groenewald; M. Meijer; B. Andersen; K. F. Nielsen; P. W. Crous; R. A. Samson

doi:10.1016/j.simyco.2016.11.005

Diversity and taxonomy of Chaetomium and chaetomium-like fungi from indoor environments

X. W. Wang^*, J. Houbraken, J. Z. Groenewald, M. Meijer, B. Andersen, K. F. Nielsen, P. W. Crous, R. A. Samson

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

139 Citations (Scopus)

Abstract

During a study of indoor fungi, 145 isolates belonging to Chaetomiaceae were cultured from air, swab and dust samples from 19 countries. Based on the phylogenetic analyses of DNA-directed RNA polymerase II second largest subunit (rpb2), β-tubulin (tub2), ITS and 28S large subunit (LSU) nrDNA sequences, together with morphological comparisons with related genera and species, 30 indoor taxa are recognised, of which 22 represent known species, seven are described as new, and one remains to be identified to species level. In our collection, 69 % of the indoor isolates with six species cluster with members of the Chaetomium globosum species complex, representing Chaetomium sensu stricto. The other indoor species fall into nine lineages that are separated from each other with several known chaetomiaceous genera occurring among them. No generic names are available for five of those lineages, and the following new genera are introduced here: Amesia with three indoor species, Arcopilus with one indoor species, Collariella with four indoor species, Dichotomopilus with seven indoor species and Ovatospora with two indoor species. The generic concept of Botryotrichum is expanded to include Emilmuelleria and the chaetomium-like species B. muromum (= Ch. murorum) in which two indoor species are included. The generic concept of Subramaniula is expanded to include several chaetomium-like taxa as well as one indoor species. Humicola is recognised as a distinct genus including two indoor taxa. According to this study, Ch. globosum is the most abundant Chaetomiaceae indoor species (74/145), followed by Ch. cochliodes (17/145), Ch. elatum (6/145) and B. piluliferum (5/145). The morphological diversity of indoor Chaetomiaceae as well as the morphological characteristics of the new genera are described and illustrated. This taxonomic study redefines the generic concept of Chaetomium and provides new insight into the phylogenetic relationships among different genera within Chaetomiaceae.

Original language	English
Journal	Studies in Mycology
Volume	84
Pages (from-to)	145-224
Number of pages	80
ISSN	0166-0616
DOIs	https://doi.org/10.1016/j.simyco.2016.11.005
Publication status	Published - 1 Jun 2016

Bibliographical note

Funding Information:
The authors are very grateful to Dr Konstanze Bensch for her kind recommendation of names for the novel taxa. We acknowledge the culture collection of the CBS-KNAW for providing cultures. We would also like to think Dr Keith Seifert for providing data used in identification of Humicola species. This work was mainly supported by the Alfred Sloan Foundation Programme on the Microbiology of the Built Environment (Grant No. G-2014-14529), partly supported by the National Natural Science Foundation of China (Project No. 30570007), the Ministry of Science and Technology of P.R. China (No. 2006FY120100) and the VILLUM foundation.

Publisher Copyright:
© 2017 CBS-KNAW Fungal Biodiversity Centre

Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.

Keywords

Chaetomium
Indoor fungi
Metabolite profiles
Indoor environment
Building materials

Access to Document

10.1016/j.simyco.2016.11.005

AUB Link

Search for the material in Aalborg University Library's search engine

Cite this

@article{5ca0fe24c9c143698a5b1fa5e771c0eb,

title = "Diversity and taxonomy of Chaetomium and chaetomium-like fungi from indoor environments",

abstract = "During a study of indoor fungi, 145 isolates belonging to Chaetomiaceae were cultured from air, swab and dust samples from 19 countries. Based on the phylogenetic analyses of DNA-directed RNA polymerase II second largest subunit (rpb2), β-tubulin (tub2), ITS and 28S large subunit (LSU) nrDNA sequences, together with morphological comparisons with related genera and species, 30 indoor taxa are recognised, of which 22 represent known species, seven are described as new, and one remains to be identified to species level. In our collection, 69 % of the indoor isolates with six species cluster with members of the Chaetomium globosum species complex, representing Chaetomium sensu stricto. The other indoor species fall into nine lineages that are separated from each other with several known chaetomiaceous genera occurring among them. No generic names are available for five of those lineages, and the following new genera are introduced here: Amesia with three indoor species, Arcopilus with one indoor species, Collariella with four indoor species, Dichotomopilus with seven indoor species and Ovatospora with two indoor species. The generic concept of Botryotrichum is expanded to include Emilmuelleria and the chaetomium-like species B. muromum (= Ch. murorum) in which two indoor species are included. The generic concept of Subramaniula is expanded to include several chaetomium-like taxa as well as one indoor species. Humicola is recognised as a distinct genus including two indoor taxa. According to this study, Ch. globosum is the most abundant Chaetomiaceae indoor species (74/145), followed by Ch. cochliodes (17/145), Ch. elatum (6/145) and B. piluliferum (5/145). The morphological diversity of indoor Chaetomiaceae as well as the morphological characteristics of the new genera are described and illustrated. This taxonomic study redefines the generic concept of Chaetomium and provides new insight into the phylogenetic relationships among different genera within Chaetomiaceae.",

keywords = "Chaetomium, Indoor fungi, Metabolite profiles, Indoor environment, Building materials",

author = "Wang, {X. W.} and J. Houbraken and Groenewald, {J. Z.} and M. Meijer and B. Andersen and Nielsen, {K. F.} and Crous, {P. W.} and Samson, {R. A.}",

note = "Funding Information: The authors are very grateful to Dr Konstanze Bensch for her kind recommendation of names for the novel taxa. We acknowledge the culture collection of the CBS-KNAW for providing cultures. We would also like to think Dr Keith Seifert for providing data used in identification of Humicola species. This work was mainly supported by the Alfred Sloan Foundation Programme on the Microbiology of the Built Environment (Grant No. G-2014-14529), partly supported by the National Natural Science Foundation of China (Project No. 30570007), the Ministry of Science and Technology of P.R. China (No. 2006FY120100) and the VILLUM foundation. Publisher Copyright: {\textcopyright} 2017 CBS-KNAW Fungal Biodiversity Centre Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

year = "2016",

month = jun,

day = "1",

doi = "10.1016/j.simyco.2016.11.005",

language = "English",

volume = "84",

pages = "145--224",

journal = "Studies in Mycology",

issn = "0166-0616",

publisher = "Elsevier",

}

TY - JOUR

T1 - Diversity and taxonomy of Chaetomium and chaetomium-like fungi from indoor environments

AU - Wang, X. W.

AU - Houbraken, J.

AU - Groenewald, J. Z.

AU - Meijer, M.

AU - Andersen, B.

AU - Nielsen, K. F.

AU - Crous, P. W.

AU - Samson, R. A.

N1 - Funding Information: The authors are very grateful to Dr Konstanze Bensch for her kind recommendation of names for the novel taxa. We acknowledge the culture collection of the CBS-KNAW for providing cultures. We would also like to think Dr Keith Seifert for providing data used in identification of Humicola species. This work was mainly supported by the Alfred Sloan Foundation Programme on the Microbiology of the Built Environment (Grant No. G-2014-14529), partly supported by the National Natural Science Foundation of China (Project No. 30570007), the Ministry of Science and Technology of P.R. China (No. 2006FY120100) and the VILLUM foundation. Publisher Copyright: © 2017 CBS-KNAW Fungal Biodiversity Centre Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 2016/6/1

Y1 - 2016/6/1

N2 - During a study of indoor fungi, 145 isolates belonging to Chaetomiaceae were cultured from air, swab and dust samples from 19 countries. Based on the phylogenetic analyses of DNA-directed RNA polymerase II second largest subunit (rpb2), β-tubulin (tub2), ITS and 28S large subunit (LSU) nrDNA sequences, together with morphological comparisons with related genera and species, 30 indoor taxa are recognised, of which 22 represent known species, seven are described as new, and one remains to be identified to species level. In our collection, 69 % of the indoor isolates with six species cluster with members of the Chaetomium globosum species complex, representing Chaetomium sensu stricto. The other indoor species fall into nine lineages that are separated from each other with several known chaetomiaceous genera occurring among them. No generic names are available for five of those lineages, and the following new genera are introduced here: Amesia with three indoor species, Arcopilus with one indoor species, Collariella with four indoor species, Dichotomopilus with seven indoor species and Ovatospora with two indoor species. The generic concept of Botryotrichum is expanded to include Emilmuelleria and the chaetomium-like species B. muromum (= Ch. murorum) in which two indoor species are included. The generic concept of Subramaniula is expanded to include several chaetomium-like taxa as well as one indoor species. Humicola is recognised as a distinct genus including two indoor taxa. According to this study, Ch. globosum is the most abundant Chaetomiaceae indoor species (74/145), followed by Ch. cochliodes (17/145), Ch. elatum (6/145) and B. piluliferum (5/145). The morphological diversity of indoor Chaetomiaceae as well as the morphological characteristics of the new genera are described and illustrated. This taxonomic study redefines the generic concept of Chaetomium and provides new insight into the phylogenetic relationships among different genera within Chaetomiaceae.

AB - During a study of indoor fungi, 145 isolates belonging to Chaetomiaceae were cultured from air, swab and dust samples from 19 countries. Based on the phylogenetic analyses of DNA-directed RNA polymerase II second largest subunit (rpb2), β-tubulin (tub2), ITS and 28S large subunit (LSU) nrDNA sequences, together with morphological comparisons with related genera and species, 30 indoor taxa are recognised, of which 22 represent known species, seven are described as new, and one remains to be identified to species level. In our collection, 69 % of the indoor isolates with six species cluster with members of the Chaetomium globosum species complex, representing Chaetomium sensu stricto. The other indoor species fall into nine lineages that are separated from each other with several known chaetomiaceous genera occurring among them. No generic names are available for five of those lineages, and the following new genera are introduced here: Amesia with three indoor species, Arcopilus with one indoor species, Collariella with four indoor species, Dichotomopilus with seven indoor species and Ovatospora with two indoor species. The generic concept of Botryotrichum is expanded to include Emilmuelleria and the chaetomium-like species B. muromum (= Ch. murorum) in which two indoor species are included. The generic concept of Subramaniula is expanded to include several chaetomium-like taxa as well as one indoor species. Humicola is recognised as a distinct genus including two indoor taxa. According to this study, Ch. globosum is the most abundant Chaetomiaceae indoor species (74/145), followed by Ch. cochliodes (17/145), Ch. elatum (6/145) and B. piluliferum (5/145). The morphological diversity of indoor Chaetomiaceae as well as the morphological characteristics of the new genera are described and illustrated. This taxonomic study redefines the generic concept of Chaetomium and provides new insight into the phylogenetic relationships among different genera within Chaetomiaceae.

KW - Chaetomium

KW - Indoor fungi

KW - Metabolite profiles

KW - Indoor environment

KW - Building materials

UR - http://www.scopus.com/inward/record.url?scp=85008940767&partnerID=8YFLogxK

U2 - 10.1016/j.simyco.2016.11.005

DO - 10.1016/j.simyco.2016.11.005

M3 - Journal article

AN - SCOPUS:85008940767

SN - 0166-0616

VL - 84

SP - 145

EP - 224

JO - Studies in Mycology

JF - Studies in Mycology

ER -

Diversity and taxonomy of Chaetomium and chaetomium-like fungi from indoor environments

Abstract

Bibliographical note

Keywords

Access to Document

AUB Link

Other files and links

Fingerprint

Cite this