Evidence for and expression of a laccase gene in three basidiomycetes degrading humic acids

被引：18

作者：

Scheel, T ^{[1
]}

Hölker, U ^{[1
]}

Ludwig, S ^{[1
]}

Höfer, M ^{[1
]}

机构：

[1] Univ Bonn, Inst Bot, D-53115 Bonn, Germany

来源：

APPLIED MICROBIOLOGY AND BIOTECHNOLOGY | 1999年 / 52卷 / 01期

关键词：

D O I：

10.1007/s002530051488

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The majority of lignin-degrading basidiomycetes are able to depolymerize humic acids. In this presentation the relationship and possible similarities between enzymes involved in lignin degradation and humic acid depolymerization were examined on the genetic level. We have cloned fragments of the gene encoding the extracellular ligninolytic enzyme laccase from Clitocybula dusenii, Nematoloma frowardii and a fungal strain designated i63-2, and compared the three sequences with those of several other published laccase genes. The sequenced fragments displayed a high homology both on the DNA (97%-77%) and amino acid (100%-85%) level. Furthermore, the expression of this gene in the above-mentioned fungi was demonstrated by a nested polymerase chain reaction with cDNA as template.

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页码：66 / 69

页数：4

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