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白腐菌云芝腐朽杨木的超微结构研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1996年01期
Page:
48-52
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
ULTRASTRUCTURAL CHANGES OF POPLAR WOOD DEGRADATION BY WHITE-ROT FUNGUS CORIOLUS VERSICOLOR
Article ID:
1000-2006(1996)01-0048-05
Author(s):
Chen Minzhong Wang Chuanhuai Gan Xihua Yie Hanling Jiang Li
College of Chemical Engineering Nanjing Forestry University Nanjing 210037
Keywords:
White-rot fungus Coriolus versicolor Biodegradation Ultrastructure Poplar wood
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1996.01.012
Document Code:
A
Abstract:
In this paper, the growth and attack pattern of the white-rot fungus Coriolus versicolor NFU 008 and the micromorphological and ultrastructural changes in rotting wood popuhts deltoides were studied by transmission electron microscope (TEM). The results show that NFU 008 not only has great ability to degrade lignin, but also has a strong selectivity. In the early stage, it preferentially degrade lignin of cell walls and cause partial separation in cell corners and the compound middle lamella of fiber cells. Besides, the extracellular slime around hypha plays an important role in wood rotting. It is integrally associated with the extracellular metabolites of the degradative fungus. The results also show that the gelatinous layers of gelating fibres have strong resistance to C. versicoiar and they remain almost intact during the period of rotting.

References

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Last Update: 1900-01-01