Enhancement of lignin degradation and laccase activity in Pleurotus ostreatus by cotton stalk extract

被引：45

作者：

Ardon, O ^{[1
]}

Kerem, Z ^{[1
]}

Hadar, Y ^{[1
]}

机构：

[1] Hebrew Univ Jerusalem, Dept Plant Pathol & Microbiol, Fac Agr Food & Environm Qual Sci, IL-76100 Rehovot, Israel

来源：

CANADIAN JOURNAL OF MICROBIOLOGY | 1998年 / 44卷 / 07期

关键词：

cotton; Pleurotus ostreatus; white rot; laccase; lignin biodegradation;

D O I：

10.1139/cjm-44-7-676

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The white rot fungus Pleurotus ostreatus was grown in a chemically defined solid stale fermentation system amended with cotton stalk extract (CSE). Treated cultures exhibited increased laccase activity as well as enhanced lignin mineralization. Mineralization of [C-14]lignin initialized 4 days earlier in CSE-supplemented cultures than in control cultures. Total mineralization in the first 16 days was 15% in the CSE-treated cultures, compared with only 7% in the controls. Cotton stalk extract also contained compounds that serve as substrates for laccase purified from P. ostreatus as shown by oxygen consumption, as well as changes in the UV-visible spectrum.

引用

页码：676 / 680

页数：5

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