Influence of initial wood moisture on decay process by two brown-rot fungi
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad del Bío Bío
2021
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| _version_ | 1876478507470553088 |
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| author | Valentina Benítez |
| author_facet | Valentina Benítez |
| contents | Influence of initial wood moisture on decay process by two brown-rot fungi Valentina Benítez Jorge Franco Álvaro Camargo Pablo Raimonda Carlos Mantero Claudia Marcela Ibáñez Agrociencias Brown rot cell walls weight loss moisture content Eucalyptus grandis The biological decomposition of lignocellulosic materials caused by basidiomycetes plays an essential role in the carbon cycle. Brown rot fungi represent important agents in the biodegradation of wood products and standing coniferous trees in natural ecosystems. The initial moisture content of the wood is an important factor in the degradation process. In this work, the effects of initial moisture content of Eucalyptus grandis sapwood on decay by two brown rot fungi Gloeophyllum trabeum and Laetiporus sulphureus were studied over a 10-month period. The fungal activity was evaluated, through wood weight loss, moisture content, anatomical changes (scan electronic and fluorescence microscopy) and Fourier-transform infrared spectroscopy. Weight loss increased through the 10-month test for both fungi, Laetiporus sulphureus producing higher mass losses. Colonization of the wood by both fungi started below the fiber saturation range. It was observed that the initial moisture content of the wood influenced the rate of deterioration: the wet samples showed higher weight loss compared to the dry samples. Changes in the chemical composition and structure of cell walls were detected. The initial moisture content of the substrate affected the development of the fungi, slowing their growth. 2021 artículo científico 0717-3644 https://www.redalyc.org/articulo.oa?id=48565417034 https://www.redalyc.org/journal/485/48565417034/ https://www.redalyc.org/journal/485/48565417034/html/ https://www.redalyc.org/journal/485/48565417034/48565417034.epub https://www.redalyc.org/journal/485/48565417034/movil en http://www.redalyc.org/revista.oa?id=485 Maderas. Ciencia y Tecnología application/pdf Universidad del Bío Bío Maderas. Ciencia y Tecnología (Chile) Vol.23 |
| format | Artículo científico |
| id | redalyc_48565417034 |
| institution | Redalyc |
| language | en |
| publishDate | 2021 |
| publisher | Universidad del Bío Bío |
| spellingShingle | Influence of initial wood moisture on decay process by two brown-rot fungi Valentina Benítez Agrociencias Brown rot cell walls weight loss moisture content Eucalyptus grandis Influence of initial wood moisture on decay process by two brown-rot fungi Valentina Benítez Jorge Franco Álvaro Camargo Pablo Raimonda Carlos Mantero Claudia Marcela Ibáñez Agrociencias Brown rot cell walls weight loss moisture content Eucalyptus grandis The biological decomposition of lignocellulosic materials caused by basidiomycetes plays an essential role in the carbon cycle. Brown rot fungi represent important agents in the biodegradation of wood products and standing coniferous trees in natural ecosystems. The initial moisture content of the wood is an important factor in the degradation process. In this work, the effects of initial moisture content of Eucalyptus grandis sapwood on decay by two brown rot fungi Gloeophyllum trabeum and Laetiporus sulphureus were studied over a 10-month period. The fungal activity was evaluated, through wood weight loss, moisture content, anatomical changes (scan electronic and fluorescence microscopy) and Fourier-transform infrared spectroscopy. Weight loss increased through the 10-month test for both fungi, Laetiporus sulphureus producing higher mass losses. Colonization of the wood by both fungi started below the fiber saturation range. It was observed that the initial moisture content of the wood influenced the rate of deterioration: the wet samples showed higher weight loss compared to the dry samples. Changes in the chemical composition and structure of cell walls were detected. The initial moisture content of the substrate affected the development of the fungi, slowing their growth. 2021 artículo científico 0717-3644 https://www.redalyc.org/articulo.oa?id=48565417034 https://www.redalyc.org/journal/485/48565417034/ https://www.redalyc.org/journal/485/48565417034/html/ https://www.redalyc.org/journal/485/48565417034/48565417034.epub https://www.redalyc.org/journal/485/48565417034/movil en http://www.redalyc.org/revista.oa?id=485 Maderas. Ciencia y Tecnología application/pdf Universidad del Bío Bío Maderas. Ciencia y Tecnología (Chile) Vol.23 |
| title | Influence of initial wood moisture on decay process by two brown-rot fungi |
| topic | Agrociencias Brown rot cell walls weight loss moisture content Eucalyptus grandis |
| url | https://www.redalyc.org/articulo.oa?id=48565417034 https://www.redalyc.org/journal/485/48565417034/ https://www.redalyc.org/journal/485/48565417034/html/ https://www.redalyc.org/journal/485/48565417034/48565417034.epub https://www.redalyc.org/journal/485/48565417034/movil |