The involvement of extracelluar substances for reducing molecular oxygen to hydroxyl radical and ferric iron to ferrous iron in wood degradation by wood decay fungi

被引:59
作者
Enoki, A
Itakura, S
Tanaka, H
机构
[1] Department of Agricultural Chemistry, Faculty of Agriculture, Kinki University, Nara 631, 3327-204, Nakamachi
关键词
brown-rot fungi; white-rot fungi; soft-rot fungi; hydroxyl radical; wood decay;
D O I
10.1016/S0168-1656(97)01682-9
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
Extracelluar substances that had single-electron oxidation activity were isolated from cultures of brown-rot and white-rot. The molecular weights of the substances estimated by gel-filtration were very small, in a range of 1000-5000. The substances catalyzed a redox reaction between electron donors and O-2 to produce H2O2 via O-2(-) and reduced H2O2 to HO .. Furthermore, the substances reduced Fe(III) to Fe(II) and strongly adsorbed Fe(II). The production of HO . in cultures of brown-rot fungi was directly proportional to the rates in the degradation of wood, crystalline cellulose and lignin-related model compounds in the cultures. Most of the HO . was produced by a redox reaction between O-2 and certain electron donors catalyzed by the low molecular weight substance in Tyromyces palustris cultures. The extent of one-electron oxidation activity of the low molecular weight substance from white-rot basidiomycetes was also correlated with that of the wood-degrading activity, but the phenol oxidase activity was not. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:265 / 272
页数:8
相关论文
共 49 条
[1]  
Abe Y., 1989, Transactions of the Mycological Society of Japan, V30, P169
[2]   PRODUCTION OF MANGANIC CHELATES BY LACCASE FROM THE LIGNIN-DEGRADING FUNGUS TRAMETES (CORIOLUS) VERSICOLOR [J].
ARCHIBALD, F ;
ROY, B .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1992, 58 (05) :1496-1499
[4]   HYDROXYL RADICAL ACTIVITY ASSOCIATED WITH THE GROWTH OF WHITE-ROT FUNGI [J].
BACKA, S ;
GIERER, J ;
REITBERGER, T ;
NILSSON, T .
HOLZFORSCHUNG, 1993, 47 (03) :181-187
[5]   HYDROXYL RADICAL ACTIVITY IN BROWN-ROT FUNGI STUDIED BY A NEW CHEMILUMINESCENCE METHOD [J].
BACKA, S ;
GIERER, J ;
REITBERGER, T ;
NILSSON, T .
HOLZFORSCHUNG, 1992, 46 (01) :61-67
[6]   DETECTION OF LIGNIN PEROXIDASE AND XYLANASE BY IMMUNOCYTOCHEMICAL LABELING IN WOOD DECAYED BY BASIDIOMYCETES [J].
BLANCHETTE, RA ;
ABAD, AR ;
FARRELL, RL ;
LEATHERS, TD .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1989, 55 (06) :1457-1465
[7]  
COWLING ELLIS B., 1961, U S DEPT AGRIC TECH BULL, V1258, P1
[8]   USE OF IMMUNOGOLD CYTOCHEMISTRY TO DETECT MN(II)-DEPENDENT AND LIGNIN PEROXIDASES IN WOOD DEGRADED BY THE WHITE ROT FUNGI PHANEROCHAETE-CHRYSOSPORIUM AND LENTINULA-EDODES [J].
DANIEL, G ;
PETTERSSON, B ;
NILSSON, T ;
VOLC, J .
CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE, 1990, 68 (04) :920-933
[9]   RELATIONSHIP BETWEEN DEGRADATION OF WOOD AND PRODUCTION OF H2O2-PRODUCING OR ONE-ELECTRON OXIDASES BY BROWN-ROT FUNGI [J].
ENOKI, A ;
TANAKA, H ;
FUSE, G .
WOOD SCIENCE AND TECHNOLOGY, 1989, 23 (01) :1-12
[10]  
ENOKI A, 1992, MATER ORGANISMEN, V27, P247