Polyethylene degradation by lignin-degrading fungi and malaganese peroxidase

被引：117

作者：

Iiyoshi, Y ^{[1
]}

Tsutsumi, Y ^{[1
]}

Nishida, T ^{[1
]}

机构：

[1] Shizuoka Univ, Fac Agr, Dept Forest Resources Sci, Shizuoka 4228529, Japan

来源：

JOURNAL OF WOOD SCIENCE | 1998年 / 44卷 / 03期

关键词：

polyethylene; biodegradation; lignin-degrading fungi; manganese peroxidase; ligninolytic activity;

D O I：

10.1007/BF00521967

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Degradation of high-molecular-weight polyethylene membrane by lignin-degrading fungi, IZU-154, Phanerochaete chrysosporium, and Trametes versicolor, was investigated under various nutritional conditions. IZU-154 showed the most significant polyethylene degradation among the three lignin-degrading fungi under nitrogen- or carbon-limited culture conditions. Furthermore, for T. versicolor and P. chrysosporium, the addition of Mn(II) into nitrogen- or carbon-limited culture medium enhanced polyethylene degradation. These results suggest that polyethylene degradation is related to ligninolytic activity of lignin-degrading fungi. Treatment of polyethylene membrane with partially purified manganese peroxidase (MnP) caused significant degradation in the presence of Tween 80, Mn(II), and Mn(III) chelator. This result demonstrates that MnP is the key enzyme in polyethylene degradation by lignin-degrading fungi.

引用

页码：222 / 229

页数：8

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