In vitro degradation of the moss Hylocomium splendens by three pleosporalean fungi
Three darkly pigmented species of conidial fungi of the family Pleosporaceae isolated from plants colonizing the Saskatchewan Glacier forefield were examined for potential roles in the degradation of moss gametophytes. Curvularia inaequalis and Ulocladium atrum isolated from bryophytes Ditrichum fle...
Published in: | Canadian Journal of Microbiology |
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2011
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crcansciencepubl:10.1139/w11-024 2023-12-17T10:49:41+01:00 In vitro degradation of the moss Hylocomium splendens by three pleosporalean fungi Day, Melissa J. Currah, Randolph S. 2011 http://dx.doi.org/10.1139/w11-024 http://www.nrcresearchpress.com/doi/full-xml/10.1139/w11-024 http://www.nrcresearchpress.com/doi/pdf/10.1139/w11-024 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Microbiology volume 57, issue 5, page 382-391 ISSN 0008-4166 1480-3275 Genetics Molecular Biology Applied Microbiology and Biotechnology General Medicine Immunology Microbiology journal-article 2011 crcansciencepubl https://doi.org/10.1139/w11-024 2023-11-19T13:38:23Z Three darkly pigmented species of conidial fungi of the family Pleosporaceae isolated from plants colonizing the Saskatchewan Glacier forefield were examined for potential roles in the degradation of moss gametophytes. Curvularia inaequalis and Ulocladium atrum isolated from bryophytes Ditrichum flexicaule and Tortella tortuosa , respectively, and Chalastospora gossypii from Saxifraga oppositifolia were inoculated onto autoclaved gametophytes of the moss Hylocomium splendens. All three species of fungi caused mass losses of the moss gametophytes. In vitro enzymatic tests revealed that all three fungi degraded cellulose, while none degraded insoluble polyphenols. When this material was examined by scanning electron microscopy, it was evident that the fungi had eroded the outer wall layer of the moss leaf cells to some extent but not the inner layer containing more lignin-like compounds. Once the outer wall layer was removed, the cells easily disarticulated. It is proposed that accumulations of these phenolics-rich leaf fragments subsequently ameliorate the rooting environment for vascular plants and have the potential to support the growth of basidiomycetes and other fungi, potentially mycorrhizal with pioneer vascular plants. Article in Journal/Newspaper Saxifraga oppositifolia Canadian Science Publishing (via Crossref) Canadian Journal of Microbiology 57 5 382 391 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
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crcansciencepubl |
language |
English |
topic |
Genetics Molecular Biology Applied Microbiology and Biotechnology General Medicine Immunology Microbiology |
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Genetics Molecular Biology Applied Microbiology and Biotechnology General Medicine Immunology Microbiology Day, Melissa J. Currah, Randolph S. In vitro degradation of the moss Hylocomium splendens by three pleosporalean fungi |
topic_facet |
Genetics Molecular Biology Applied Microbiology and Biotechnology General Medicine Immunology Microbiology |
description |
Three darkly pigmented species of conidial fungi of the family Pleosporaceae isolated from plants colonizing the Saskatchewan Glacier forefield were examined for potential roles in the degradation of moss gametophytes. Curvularia inaequalis and Ulocladium atrum isolated from bryophytes Ditrichum flexicaule and Tortella tortuosa , respectively, and Chalastospora gossypii from Saxifraga oppositifolia were inoculated onto autoclaved gametophytes of the moss Hylocomium splendens. All three species of fungi caused mass losses of the moss gametophytes. In vitro enzymatic tests revealed that all three fungi degraded cellulose, while none degraded insoluble polyphenols. When this material was examined by scanning electron microscopy, it was evident that the fungi had eroded the outer wall layer of the moss leaf cells to some extent but not the inner layer containing more lignin-like compounds. Once the outer wall layer was removed, the cells easily disarticulated. It is proposed that accumulations of these phenolics-rich leaf fragments subsequently ameliorate the rooting environment for vascular plants and have the potential to support the growth of basidiomycetes and other fungi, potentially mycorrhizal with pioneer vascular plants. |
format |
Article in Journal/Newspaper |
author |
Day, Melissa J. Currah, Randolph S. |
author_facet |
Day, Melissa J. Currah, Randolph S. |
author_sort |
Day, Melissa J. |
title |
In vitro degradation of the moss Hylocomium splendens by three pleosporalean fungi |
title_short |
In vitro degradation of the moss Hylocomium splendens by three pleosporalean fungi |
title_full |
In vitro degradation of the moss Hylocomium splendens by three pleosporalean fungi |
title_fullStr |
In vitro degradation of the moss Hylocomium splendens by three pleosporalean fungi |
title_full_unstemmed |
In vitro degradation of the moss Hylocomium splendens by three pleosporalean fungi |
title_sort |
in vitro degradation of the moss hylocomium splendens by three pleosporalean fungi |
publisher |
Canadian Science Publishing |
publishDate |
2011 |
url |
http://dx.doi.org/10.1139/w11-024 http://www.nrcresearchpress.com/doi/full-xml/10.1139/w11-024 http://www.nrcresearchpress.com/doi/pdf/10.1139/w11-024 |
genre |
Saxifraga oppositifolia |
genre_facet |
Saxifraga oppositifolia |
op_source |
Canadian Journal of Microbiology volume 57, issue 5, page 382-391 ISSN 0008-4166 1480-3275 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/w11-024 |
container_title |
Canadian Journal of Microbiology |
container_volume |
57 |
container_issue |
5 |
container_start_page |
382 |
op_container_end_page |
391 |
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1785574241724268544 |