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Biological Degradation of Chinese Fir with Trametes Versicolor (L.) Lloyd
Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) has been an important afforestation species in northeast China. It has obvious defects of buckling and cracking easily, which are caused by its chemical components. Trametes versicolor (L.) Lloyd, a white-rot fungus, can decompose the cellulose, he...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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MDPI
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5551877/ https://www.ncbi.nlm.nih.gov/pubmed/28773191 http://dx.doi.org/10.3390/ma10070834 |
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author | Chen, Meiling Wang, Chuangui Fei, Benhua Ma, Xinxin Zhang, Bo Zhang, Shuangyan Huang, Anmin |
author_facet | Chen, Meiling Wang, Chuangui Fei, Benhua Ma, Xinxin Zhang, Bo Zhang, Shuangyan Huang, Anmin |
author_sort | Chen, Meiling |
collection | PubMed |
description | Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) has been an important afforestation species in northeast China. It has obvious defects of buckling and cracking easily, which are caused by its chemical components. Trametes versicolor (L.) Lloyd, a white-rot fungus, can decompose the cellulose, hemicellulose, and lignin in the wood. White-rot fungus was used to biologically degrade Chinese fir wood. The effects of different degradation time on the Chinese fir wood’s mechanical properties, micromorphology, chemical components, and crystallinity were studied. The results showed that the heartwood of Chinese fir was more durable than the sapwood and the durability class of Chinese fir was III. Trametes versicolor (L.) Lloyd had a greater influence on the mechanical properties (especially with respect to the modulus of elasticity (MOE)) for the sapwood. Trametes versicolor (L.) Lloyd degraded Chinese fir and colonized the lumen of various wood cell types in Chinese fir, penetrated cell walls via pits, caused erosion troughs and bore holes, and removed all cell layers. The ability of white-rot fungus to change the chemical composition mass fraction for Chinese fir was: hemicellulose > lignin > cellulose. The durability of the chemical compositions was: lignin > cellulose > hemicellulose. The crystallinity of the cellulose decreased and the mean size of the ordered (crystalline) domains increased after being treated by white-rot fungus. |
format | Online Article Text |
id | pubmed-5551877 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-55518772017-08-11 Biological Degradation of Chinese Fir with Trametes Versicolor (L.) Lloyd Chen, Meiling Wang, Chuangui Fei, Benhua Ma, Xinxin Zhang, Bo Zhang, Shuangyan Huang, Anmin Materials (Basel) Article Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) has been an important afforestation species in northeast China. It has obvious defects of buckling and cracking easily, which are caused by its chemical components. Trametes versicolor (L.) Lloyd, a white-rot fungus, can decompose the cellulose, hemicellulose, and lignin in the wood. White-rot fungus was used to biologically degrade Chinese fir wood. The effects of different degradation time on the Chinese fir wood’s mechanical properties, micromorphology, chemical components, and crystallinity were studied. The results showed that the heartwood of Chinese fir was more durable than the sapwood and the durability class of Chinese fir was III. Trametes versicolor (L.) Lloyd had a greater influence on the mechanical properties (especially with respect to the modulus of elasticity (MOE)) for the sapwood. Trametes versicolor (L.) Lloyd degraded Chinese fir and colonized the lumen of various wood cell types in Chinese fir, penetrated cell walls via pits, caused erosion troughs and bore holes, and removed all cell layers. The ability of white-rot fungus to change the chemical composition mass fraction for Chinese fir was: hemicellulose > lignin > cellulose. The durability of the chemical compositions was: lignin > cellulose > hemicellulose. The crystallinity of the cellulose decreased and the mean size of the ordered (crystalline) domains increased after being treated by white-rot fungus. MDPI 2017-07-20 /pmc/articles/PMC5551877/ /pubmed/28773191 http://dx.doi.org/10.3390/ma10070834 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Chen, Meiling Wang, Chuangui Fei, Benhua Ma, Xinxin Zhang, Bo Zhang, Shuangyan Huang, Anmin Biological Degradation of Chinese Fir with Trametes Versicolor (L.) Lloyd |
title | Biological Degradation of Chinese Fir with Trametes Versicolor (L.) Lloyd |
title_full | Biological Degradation of Chinese Fir with Trametes Versicolor (L.) Lloyd |
title_fullStr | Biological Degradation of Chinese Fir with Trametes Versicolor (L.) Lloyd |
title_full_unstemmed | Biological Degradation of Chinese Fir with Trametes Versicolor (L.) Lloyd |
title_short | Biological Degradation of Chinese Fir with Trametes Versicolor (L.) Lloyd |
title_sort | biological degradation of chinese fir with trametes versicolor (l.) lloyd |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5551877/ https://www.ncbi.nlm.nih.gov/pubmed/28773191 http://dx.doi.org/10.3390/ma10070834 |
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