Modeling the biodegradation of multicomponent organic matter in an aquatic environment: 3. Analysis of lignin degradation mechanisms

  title={Modeling the biodegradation of multicomponent organic matter in an aquatic environment: 3. Analysis of lignin degradation mechanisms},
  author={T. N. Gubernatorova and Boris M. Dolgonosov},
  journal={Water Resources},
Mechanisms of enzymatic degradation of a persistent organic substance are discussed in the case of lignin. The major groups of lignin-decomposing microorganisms and their enzymatic systems are described. The biochemical mechanisms of the action of main lignin-decomposing enzymes are analyzed. Typical sizes of enzyme molecules are estimated. The results of analysis are used to formulate the major regularities of lignin destruction, which are required for the construction of a kinetic model of… 
Basic Mechanism of Lignocellulose Mycodegradation
The present chapter mainly focus on various aspect of efficient biodegradation and bioconversion of lignocelluloses with a sustainable approach to proceed lignOcellulose material into value added forms.
Redefining the Subsurface Biosphere: Characterization of Fungi Isolated From Energy-Limited Marine Deep Subsurface Sediment
The characterization of metabolically active fungal isolates within the deep marine subsurface will alter current ecosystem models and living biomass estimates that are limited to bacterial and
Effect of Trichoderma fungi on lignin from tree species barks
Microbial decomposition of lignin can be recommended for the preparation of such Trichodermin biological products, and for the destruction and bleaching of wood fibers for purposes of their further industrial use (e.g., in the production of paper and bioethanol).
Causes of Oxygen Depletion in an Aquatic Environment
When oxygen levels within the water are depleted, generally safe aerobic microorganisms die and anaerobic microorganisms start to thrive. A few anaerobic microorganisms are destructive to
Reappraising a Controversy: Formation and Role of the Azodication (ABTS2+) in the Laccase-ABTS Catalyzed Breakdown of Lignin
In fermentations of lignocelluloses, redox potentials (If not indicated otherwise, redox potentials in Volt are taken versus Normal Hydrogen Reference Electrodes (NHE).) E0 of laccases/plant
Leaf litter nutrient uptake in an intermittent blackwater river: influence of tree species and associated biotic and abiotic drivers
A substantial portion of detrital nutrients was not accounted for by living or dead plant and microbial biomass, especially in the case of N, which suggests increased importance of both N and P sorption to inorganic matter over time, with possible additional storage of N complexed with lignin.
Workshop to develop deep-life continental scientific drilling projects
Abstract. The International Continental Scientific Drilling Program (ICDP) has long espoused studies of deep subsurface life, and has targeted fundamental questions regarding subsurface life,


Activities of ligninolytic enzymes in some white-rot basidiomycete strains after recovering from cryopreservation in liquid nitrogen
No negative effect of cryopreservation or the used cryoprotective on production of the ligninolytic enzymes was found in the fungi tested.
Biotransformation of Aspen Lignin by the FungusTrametes villosus
Quantitative1H and13C NMR spectroscopies demonstrate that biotransformation of aspen wood by the fungusTrametes villosusresults in oxidation and destruction of lignin with cleavage of C-C alkyl-alkyl
Anaerobic Degradation of Phenolic Compounds
Comparison of the various strategies taken for the degradation of aromatics in the absence of oxygen demonstrates that the biochemistry of breakdown of these compounds is determined largely by the overall reaction energetics and, more precisely, by the redox potentials of the electron acceptor systems used.
Microbial and Enzymatic Degradation of Wood and Wood Components
The oil crisis during the 1970s turned interest towards the utilization of renewable resources and towards lignocellulosics in particular, and the commercial utilization of this technology has not progressed as rapidly as one would have desired.
Comparison of ligninolytic activities of selected white-rot fungi
SummarySix fast growing ligninolytic white-rot fungi were compared with Phanerochaete chrysosporium. The results showed that the fungi have similar ligninolytic systems, although minor differences
Purification and characterization of peroxidases from the dye-decolorizing fungus Bjerkandera adusta.
A peroxidase oxidizing Mn2+ (MnP) is described for the first time in Bjerkandera adusta, a fungus efficiently degrading xenobiotic compounds, related to its ability to catalyze Mn(2+)-mediated as well as Mn( 2+)-independent reactions on aromatic compounds, which may be of use for applications in biotechnology and environmental technology.