TRANSLOCATION OF TRANSITION METALS DURING THE DEGRADATION OF PINUS RADIATA BY GLOEOPHYLLUM TRABEUM ON THE FOREST SOIL

Brown rot fungi (BRF) are highly destructive wood degraders characterized by extensive degradation and mineralization of cellulose and hemicellulose, in most of the cases without causing a substantial removal of lignin. BRF have not a complete cellulase complex neither ligninolytic enzymes, therefor...

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Autores principales:	POZO,CLAUDIO, MELÍN,VICTORIA, ELISSETCHE,JUAN PEDRO, CONTRERAS,DAVID, FREER,JUANITA, RODRÍGUEZ,JAIME
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2016
Materias:	brown rot wood biodegradation metal translocation Gloeophyllum trabeum forest soil transition metals
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072016000300030
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spelling	oai:scielo:S0717-970720160003000302017-06-14TRANSLOCATION OF TRANSITION METALS DURING THE DEGRADATION OF PINUS RADIATA BY GLOEOPHYLLUM TRABEUM ON THE FOREST SOILPOZO,CLAUDIOMELÍN,VICTORIAELISSETCHE,JUAN PEDROCONTRERAS,DAVIDFREER,JUANITARODRÍGUEZ,JAIME brown rot wood biodegradation metal translocation Gloeophyllum trabeum forest soil transition metals Brown rot fungi (BRF) are highly destructive wood degraders characterized by extensive degradation and mineralization of cellulose and hemicellulose, in most of the cases without causing a substantial removal of lignin. BRF have not a complete cellulase complex neither ligninolytic enzymes, therefore, has been hypothesized that to degrade wood components, a non-enzymatic mechanism based on ·ΟΗ radicals production through Fenton reaction is also involved. The availability of iron limits the Fenton reaction in wood biodegradation by BRF, because this metal (and other transition metals) is found in small amounts in wood. For this reason, it has been postulated that the fungus transport metals from the soil. To study the effect of soil and transition metal translocation (Fe, Cu, and Mn) on wood biodegradation by the BRF Gloeophyllum trabeum, Pinus radiata wood chips (20 years old) were incubated with forest soil in stationary tray bioreactor for a period until 16 weeks. Translocation of transition metals, mass and wood components (extractives, carbohydrates, and lignin) loss, the decrease of holocellulose viscosity and oxalic acid production were determined at different intervals of time. Wood on soil showed a high translocation of transition metals mainly Fe. Translocation of soil metals into the wood was relevant for improving fungal growth and wood decay, which is correlated significantly with higher loss mass and wood components compared with degradation without soil.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.61 n.3 20162016-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072016000300030en10.4067/S0717-97072016000300030
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	brown rot wood biodegradation metal translocation Gloeophyllum trabeum forest soil transition metals
spellingShingle	brown rot wood biodegradation metal translocation Gloeophyllum trabeum forest soil transition metals POZO,CLAUDIO MELÍN,VICTORIA ELISSETCHE,JUAN PEDRO CONTRERAS,DAVID FREER,JUANITA RODRÍGUEZ,JAIME TRANSLOCATION OF TRANSITION METALS DURING THE DEGRADATION OF PINUS RADIATA BY GLOEOPHYLLUM TRABEUM ON THE FOREST SOIL
description	Brown rot fungi (BRF) are highly destructive wood degraders characterized by extensive degradation and mineralization of cellulose and hemicellulose, in most of the cases without causing a substantial removal of lignin. BRF have not a complete cellulase complex neither ligninolytic enzymes, therefore, has been hypothesized that to degrade wood components, a non-enzymatic mechanism based on ·ΟΗ radicals production through Fenton reaction is also involved. The availability of iron limits the Fenton reaction in wood biodegradation by BRF, because this metal (and other transition metals) is found in small amounts in wood. For this reason, it has been postulated that the fungus transport metals from the soil. To study the effect of soil and transition metal translocation (Fe, Cu, and Mn) on wood biodegradation by the BRF Gloeophyllum trabeum, Pinus radiata wood chips (20 years old) were incubated with forest soil in stationary tray bioreactor for a period until 16 weeks. Translocation of transition metals, mass and wood components (extractives, carbohydrates, and lignin) loss, the decrease of holocellulose viscosity and oxalic acid production were determined at different intervals of time. Wood on soil showed a high translocation of transition metals mainly Fe. Translocation of soil metals into the wood was relevant for improving fungal growth and wood decay, which is correlated significantly with higher loss mass and wood components compared with degradation without soil.
author	POZO,CLAUDIO MELÍN,VICTORIA ELISSETCHE,JUAN PEDRO CONTRERAS,DAVID FREER,JUANITA RODRÍGUEZ,JAIME
author_facet	POZO,CLAUDIO MELÍN,VICTORIA ELISSETCHE,JUAN PEDRO CONTRERAS,DAVID FREER,JUANITA RODRÍGUEZ,JAIME
author_sort	POZO,CLAUDIO
title	TRANSLOCATION OF TRANSITION METALS DURING THE DEGRADATION OF PINUS RADIATA BY GLOEOPHYLLUM TRABEUM ON THE FOREST SOIL
title_short	TRANSLOCATION OF TRANSITION METALS DURING THE DEGRADATION OF PINUS RADIATA BY GLOEOPHYLLUM TRABEUM ON THE FOREST SOIL
title_full	TRANSLOCATION OF TRANSITION METALS DURING THE DEGRADATION OF PINUS RADIATA BY GLOEOPHYLLUM TRABEUM ON THE FOREST SOIL
title_fullStr	TRANSLOCATION OF TRANSITION METALS DURING THE DEGRADATION OF PINUS RADIATA BY GLOEOPHYLLUM TRABEUM ON THE FOREST SOIL
title_full_unstemmed	TRANSLOCATION OF TRANSITION METALS DURING THE DEGRADATION OF PINUS RADIATA BY GLOEOPHYLLUM TRABEUM ON THE FOREST SOIL
title_sort	translocation of transition metals during the degradation of pinus radiata by gloeophyllum trabeum on the forest soil
publisher	Sociedad Chilena de Química
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072016000300030
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TRANSLOCATION OF TRANSITION METALS DURING THE DEGRADATION OF PINUS RADIATA BY GLOEOPHYLLUM TRABEUM ON THE FOREST SOIL

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