Artikel
Lizenziert
Nicht lizenziert
Erfordert eine Authentifizierung
Depolymerization of Straw Lignin by Manganese Peroxidase from Nematoloma frowardii is Accompanied by Release of Carbon Dioxide
-
Martin Hofrichter
Veröffentlicht/Copyright:
1. Juni 2005
Summary
Manganese peroxidase preparations (MnP) from the white-rot fungus Nematoloma frowardii were able to release 14CO2 directly from 14C-labeled milled wheat straw (MWS; total lignin fraction) and milled straw lignin (MSL; dioxane soluble part of MWS). Apart from the formation of 14CO2 (4–10 %) the treatment of insoluble MWS and MSL with MnP resulted in the formation of water-soluble 14C-lignin fragments (lignin solubilization, 14–25%). Analyses with gel permeation chromatography (GPC) demonstrated the formation of lignin fragments with predominant molecular masses around 1 kDa. The extent of MWS mineralization and solubilization was enhanced in the presence of reduced glutathione (GSH) acting as thiol mediator, whereas MSL mineralization was not stimulated by GSH. The principle of direct extracellular mineralization of lignin catalyzed by the MnP system may make a significant contribution to the formation of carbon dioxide in lignincellulose containing habitats.
:
Published Online: 2005-06-01
Published in Print: 1999-03-01
Copyright (c)1999 by Walter de Gruyter GmbH & Co. KG
Sie haben derzeit keinen Zugang zu diesem Inhalt.
Sie haben derzeit keinen Zugang zu diesem Inhalt.
Artikel in diesem Heft
- Electron Energy Loss Spectroscopy (EELS) for Quantification of Cell-Wall Penetration of a Melamine Resin
- Extraction Conditions Affect Protein Recovery and Enzyme Activity in Wood Wafers Exposed to Stain Fungi and Bioprotectants
- Identification of the Dry Rot Fungus, Serpula lacrymans, and the Wild Merulius, S. himantioides, by Amplified Ribosomal DNA Restriction Analysis (ARDRA)
- Development of Model Systems for Investigations of the Dry Rot Fungus Serpula lacrymans (Schumach. ex Fr.) Gray: Use for Analysis of the Environmental Sensitivity of the Organism
- Extracellular Polysaccharides from the Suspension-Culture of <I>Populus Alba</I> L.
- Chemical Constituents and Mechanisms of Discoloration of Taiwania (Taiwania cryptomerioides Hayata) Heartwood. The Structure Reconfirmation and Conversion Mechanism of Taiwanin A
- Ellagitannins in Woods of Spanish, French and American Oaks
- Water Repellent Efficiency of Organic Solvent Extractives from Aleppo Pine Leaves and Bark Applied to Wood
- Deposition of Lignin in Differentiating Xylem Cell Walls of Normal and Compression Wood of Buxus microphylla var. insularis Nakai
- Depolymerization of Straw Lignin by Manganese Peroxidase from Nematoloma frowardii is Accompanied by Release of Carbon Dioxide
- Structural Characterization of Cork Lignin by Thioacidolysis and Permanganate Oxidation
- The Reaction of Phenolic Model Compounds in the Laccase-Mediator System (LMS) Investigations by Matrix Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF-MS)
- Use of an Improved Chemiluminescence Assay for Non-Intrusive Measurement of Hydroxyl Radicals in a Biomimetic Pulp Bleaching Model System
- Surface Composition and Morphology of CTMP Fibers
- Reactivity of Radiata Pine Sapwood Towards Carboxylic Acid Anhydrides
- Influence of Growth Rate and Cambial Age on Density of Rauli (Nothofagus nervosa) in Relation to Vessel Lumen Areas and Numbers
- Convective Mass Transfer Coefficient at Wooden Surface in Jet Drying of Veneer
- Tangential Youngs Modulus of Coniferous Early Wood Investigated Using Cell Models
- Effect of Silvicultural Practice and Wood Type on Loblolly Pine Particleboard and Medium Density Fiberboard Properties
- Literature Report
Artikel in diesem Heft
- Electron Energy Loss Spectroscopy (EELS) for Quantification of Cell-Wall Penetration of a Melamine Resin
- Extraction Conditions Affect Protein Recovery and Enzyme Activity in Wood Wafers Exposed to Stain Fungi and Bioprotectants
- Identification of the Dry Rot Fungus, Serpula lacrymans, and the Wild Merulius, S. himantioides, by Amplified Ribosomal DNA Restriction Analysis (ARDRA)
- Development of Model Systems for Investigations of the Dry Rot Fungus Serpula lacrymans (Schumach. ex Fr.) Gray: Use for Analysis of the Environmental Sensitivity of the Organism
- Extracellular Polysaccharides from the Suspension-Culture of <I>Populus Alba</I> L.
- Chemical Constituents and Mechanisms of Discoloration of Taiwania (Taiwania cryptomerioides Hayata) Heartwood. The Structure Reconfirmation and Conversion Mechanism of Taiwanin A
- Ellagitannins in Woods of Spanish, French and American Oaks
- Water Repellent Efficiency of Organic Solvent Extractives from Aleppo Pine Leaves and Bark Applied to Wood
- Deposition of Lignin in Differentiating Xylem Cell Walls of Normal and Compression Wood of Buxus microphylla var. insularis Nakai
- Depolymerization of Straw Lignin by Manganese Peroxidase from Nematoloma frowardii is Accompanied by Release of Carbon Dioxide
- Structural Characterization of Cork Lignin by Thioacidolysis and Permanganate Oxidation
- The Reaction of Phenolic Model Compounds in the Laccase-Mediator System (LMS) Investigations by Matrix Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF-MS)
- Use of an Improved Chemiluminescence Assay for Non-Intrusive Measurement of Hydroxyl Radicals in a Biomimetic Pulp Bleaching Model System
- Surface Composition and Morphology of CTMP Fibers
- Reactivity of Radiata Pine Sapwood Towards Carboxylic Acid Anhydrides
- Influence of Growth Rate and Cambial Age on Density of Rauli (Nothofagus nervosa) in Relation to Vessel Lumen Areas and Numbers
- Convective Mass Transfer Coefficient at Wooden Surface in Jet Drying of Veneer
- Tangential Youngs Modulus of Coniferous Early Wood Investigated Using Cell Models
- Effect of Silvicultural Practice and Wood Type on Loblolly Pine Particleboard and Medium Density Fiberboard Properties
- Literature Report
