The Effect of <i>Eutypella parasitica</i> on the Wood Decay of Three Maple Species
<i>Eutypella parasitica</i> R.W. Davidson & R.C. Lorenz is the causative agent of Eutypella canker of maple, a destructive disease of maples in Europe and North America. The fungus <i>E. parasitica</i> is known to cause wood stain and decay. However, it is not known how e...
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| Format: | Article |
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MDPI AG
2020-06-01
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| Series: | Forests |
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| Online Access: | https://www.mdpi.com/1999-4907/11/6/671 |
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| author | Ana Brglez Barbara Piškur Miha Humar Jožica Gričar Nikica Ogris |
| author_facet | Ana Brglez Barbara Piškur Miha Humar Jožica Gričar Nikica Ogris |
| author_sort | Ana Brglez |
| collection | DOAJ |
| description | <i>Eutypella parasitica</i> R.W. Davidson & R.C. Lorenz is the causative agent of Eutypella canker of maple, a destructive disease of maples in Europe and North America. The fungus <i>E. parasitica</i> is known to cause wood stain and decay. However, it is not known how effectively it decomposes the wood of the most widespread maple species in Europe. Wood samples of <i>Acer pseudoplatanus</i> L., <i>A. platanoides</i> L., and <i>A. campestre</i> L. were exposed to four isolates of <i>E. parasitica</i> and nine other fungal species for comparison, according to the modified EN 113 standard. After 15 weeks of incubation, mass loss and microscopical analysis of samples showed evidence of colonization and different wood decay potentials among fungal species. A highly significant positive correlation was found between mass loss and moisture content for all fungal species. Similarly, the measured cell wall thickness correlated well with the calculated mass loss of the samples. On average, the fungal species caused the lowest mass loss in <i>A. pseudoplatanus</i> (10.0%) and the highest in <i>A. campestre</i> (12.6%) samples. Among the samples exposed to <i>E. parasitica</i> isolates, the highest mass loss was recorded in <i>A. pseudoplatanus</i> (6.6%). Statistical analysis showed significant differences in mass loss and moisture content between different <i>E. parasitica</i> isolates. Based on the results of staining, we discuss the type of decay caused by <i>E. parasitica</i>. Although <i>E. parasitica</i> isolates caused smaller mass loss of samples compared to other more effective decay species, we should not disregard its capability of degrading maple wood. Because <i>E. parasitica</i> usually infects the lower portion of the trunk, which is the largest and most valuable part of the tree, any damage can cause significant economic and resource loss. |
| first_indexed | 2024-03-10T19:13:54Z |
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| id | doaj.art-491c5f5f7fc4487cb4d7ea8b7c77923d |
| institution | Directory Open Access Journal |
| issn | 1999-4907 |
| language | English |
| last_indexed | 2024-03-10T19:13:54Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-491c5f5f7fc4487cb4d7ea8b7c77923d2023-11-20T03:34:25ZengMDPI AGForests1999-49072020-06-0111667110.3390/f11060671The Effect of <i>Eutypella parasitica</i> on the Wood Decay of Three Maple SpeciesAna Brglez0Barbara Piškur1Miha Humar2Jožica Gričar3Nikica Ogris4Department of Forest Protection, Slovenian Forestry Institute, 1000 Ljubljana, SloveniaDepartment of Forest Protection, Slovenian Forestry Institute, 1000 Ljubljana, SloveniaDepartment of Wood Science and Technology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, SloveniaDepartment of Forest Yield and Silviculture, Slovenian Forestry Institute, 1000 Ljubljana, SloveniaDepartment of Forest Protection, Slovenian Forestry Institute, 1000 Ljubljana, Slovenia<i>Eutypella parasitica</i> R.W. Davidson & R.C. Lorenz is the causative agent of Eutypella canker of maple, a destructive disease of maples in Europe and North America. The fungus <i>E. parasitica</i> is known to cause wood stain and decay. However, it is not known how effectively it decomposes the wood of the most widespread maple species in Europe. Wood samples of <i>Acer pseudoplatanus</i> L., <i>A. platanoides</i> L., and <i>A. campestre</i> L. were exposed to four isolates of <i>E. parasitica</i> and nine other fungal species for comparison, according to the modified EN 113 standard. After 15 weeks of incubation, mass loss and microscopical analysis of samples showed evidence of colonization and different wood decay potentials among fungal species. A highly significant positive correlation was found between mass loss and moisture content for all fungal species. Similarly, the measured cell wall thickness correlated well with the calculated mass loss of the samples. On average, the fungal species caused the lowest mass loss in <i>A. pseudoplatanus</i> (10.0%) and the highest in <i>A. campestre</i> (12.6%) samples. Among the samples exposed to <i>E. parasitica</i> isolates, the highest mass loss was recorded in <i>A. pseudoplatanus</i> (6.6%). Statistical analysis showed significant differences in mass loss and moisture content between different <i>E. parasitica</i> isolates. Based on the results of staining, we discuss the type of decay caused by <i>E. parasitica</i>. Although <i>E. parasitica</i> isolates caused smaller mass loss of samples compared to other more effective decay species, we should not disregard its capability of degrading maple wood. Because <i>E. parasitica</i> usually infects the lower portion of the trunk, which is the largest and most valuable part of the tree, any damage can cause significant economic and resource loss.https://www.mdpi.com/1999-4907/11/6/671wood decaymass lossmoisture contentmini-block testdecay test<i>Acer</i> spp. |
| spellingShingle | Ana Brglez Barbara Piškur Miha Humar Jožica Gričar Nikica Ogris The Effect of <i>Eutypella parasitica</i> on the Wood Decay of Three Maple Species Forests wood decay mass loss moisture content mini-block test decay test <i>Acer</i> spp. |
| title | The Effect of <i>Eutypella parasitica</i> on the Wood Decay of Three Maple Species |
| title_full | The Effect of <i>Eutypella parasitica</i> on the Wood Decay of Three Maple Species |
| title_fullStr | The Effect of <i>Eutypella parasitica</i> on the Wood Decay of Three Maple Species |
| title_full_unstemmed | The Effect of <i>Eutypella parasitica</i> on the Wood Decay of Three Maple Species |
| title_short | The Effect of <i>Eutypella parasitica</i> on the Wood Decay of Three Maple Species |
| title_sort | effect of i eutypella parasitica i on the wood decay of three maple species |
| topic | wood decay mass loss moisture content mini-block test decay test <i>Acer</i> spp. |
| url | https://www.mdpi.com/1999-4907/11/6/671 |
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