Phenolic removal of olive-mill dry residues by laccase activity of white-rot fungi and its impact on tomato plant growth

被引：54

作者：

Aranda, E. ^{[1
]}

Sampedro, I. ^{[1
]}

Ocampo, J. A. ^{[1
]}

Garcia-Romera, I. ^{[1
]}

机构：

[1] CSIC, Dep Microbiol Suelo & Sist Simbiot, Estac Expt Zaidin, E-18008 Granada, Spain

来源：

INTERNATIONAL BIODETERIORATION & BIODEGRADATION | 2006年 / 58卷 / 3-4期

关键词：

laccase; olive-mill dry residue; white-rot fungi; phytotoxicity;

D O I：

10.1016/j.ibiod.2006.06.006

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：

We studied the influence of the laccase activity of two white-rot fungi on the toxic effect of water-soluble substances from dry residues of olives (ADOR) on tomato plants. Pycnoporus cinnabarinus and Coriolopsis rigida decreased the phenol content of ADOR to 73% after 15 days. P. cinnabarinus and C rigida produced laccase activity after 5 and 15 days, respectively, and the highest activity in both fungi was detected at 20 days. The treatment of ADOR with these white-rot fungi decreased the phytotoxicity of this residue on tomato plants. A close relationship was found between the amount of laccase produced, the decrease in phenol content of ADOR by the saprobic fungi, decrease of phytotoxicity of ADOR, and the increase in dry weight of tomato plants. These results show that phenol removal by the laccase activity of white-rot fungi can be important in the elimination of phytotoxic substances present in olive-mill dry residues. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：176 / 179

页数：4

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