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Knoxdaviesia proteae is not the only Knoxdaviesia-symbiont of Protea repens
Two polyphyletic genera of ophiostomatoid fungi are symbionts of Proteaceae in southern Africa. One of these, Knoxdaviesia, includes two closely related species, K. proteae and K. capensis, that have overlapping geographical distributions, but are not known to share Protea host species. Knoxdaviesia...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Mycological Association
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4681262/ https://www.ncbi.nlm.nih.gov/pubmed/26734549 http://dx.doi.org/10.5598/imafungus.2015.06.02.10 |
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author | Aylward, Janneke Dreyer, Léanne L. Steenkamp, Emma T. Wingfield, Michael J. Roets, Francois |
author_facet | Aylward, Janneke Dreyer, Léanne L. Steenkamp, Emma T. Wingfield, Michael J. Roets, Francois |
author_sort | Aylward, Janneke |
collection | PubMed |
description | Two polyphyletic genera of ophiostomatoid fungi are symbionts of Proteaceae in southern Africa. One of these, Knoxdaviesia, includes two closely related species, K. proteae and K. capensis, that have overlapping geographical distributions, but are not known to share Protea host species. Knoxdaviesia capensis appears to be a generalist that occupies numerous hosts, but has never been found in P. repens, the only known host of K. proteae. In this study, extensive collections were made from P. repens and isolates were identified using DNA sequence comparisons. This led to the surprising discovery of K. capensis from P. repens for the first time. The fungus was encountered at a low frequency, suggesting that P. repens is not its preferred host, which may explain why it has not previously been found on this plant. The basis for the specialisation of K. proteae and K. capensis on different Protea species remains unknown. |
format | Online Article Text |
id | pubmed-4681262 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | International Mycological Association |
record_format | MEDLINE/PubMed |
spelling | pubmed-46812622016-01-05 Knoxdaviesia proteae is not the only Knoxdaviesia-symbiont of Protea repens Aylward, Janneke Dreyer, Léanne L. Steenkamp, Emma T. Wingfield, Michael J. Roets, Francois IMA Fungus Article Two polyphyletic genera of ophiostomatoid fungi are symbionts of Proteaceae in southern Africa. One of these, Knoxdaviesia, includes two closely related species, K. proteae and K. capensis, that have overlapping geographical distributions, but are not known to share Protea host species. Knoxdaviesia capensis appears to be a generalist that occupies numerous hosts, but has never been found in P. repens, the only known host of K. proteae. In this study, extensive collections were made from P. repens and isolates were identified using DNA sequence comparisons. This led to the surprising discovery of K. capensis from P. repens for the first time. The fungus was encountered at a low frequency, suggesting that P. repens is not its preferred host, which may explain why it has not previously been found on this plant. The basis for the specialisation of K. proteae and K. capensis on different Protea species remains unknown. International Mycological Association 2015-11-10 2015-12 /pmc/articles/PMC4681262/ /pubmed/26734549 http://dx.doi.org/10.5598/imafungus.2015.06.02.10 Text en © 2015 International Mycological Association http://creativecommons.org/licenses/by-nc-nd/3.0/legalcode You are free to share - to copy, distribute and transmit the work, under the following conditions: Attribution: You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). Non-commercial: You may not use this work for commercial purposes. No derivative works: You may not alter, transform, or build upon this work. For any reuse or distribution, you must make clear to others the license terms of this work, which can be found at http://creativecommons.org/licenses/by-nc-nd/3.0/legalcode. Any of the above conditions can be waived if you get permission from the copyright holder. Nothing in this license impairs or restricts the author’s moral rights. |
spellingShingle | Article Aylward, Janneke Dreyer, Léanne L. Steenkamp, Emma T. Wingfield, Michael J. Roets, Francois Knoxdaviesia proteae is not the only Knoxdaviesia-symbiont of Protea repens |
title | Knoxdaviesia proteae is not the only Knoxdaviesia-symbiont of Protea repens |
title_full | Knoxdaviesia proteae is not the only Knoxdaviesia-symbiont of Protea repens |
title_fullStr | Knoxdaviesia proteae is not the only Knoxdaviesia-symbiont of Protea repens |
title_full_unstemmed | Knoxdaviesia proteae is not the only Knoxdaviesia-symbiont of Protea repens |
title_short | Knoxdaviesia proteae is not the only Knoxdaviesia-symbiont of Protea repens |
title_sort | knoxdaviesia proteae is not the only knoxdaviesia-symbiont of protea repens |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4681262/ https://www.ncbi.nlm.nih.gov/pubmed/26734549 http://dx.doi.org/10.5598/imafungus.2015.06.02.10 |
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