Enzymatic Degradation of Lignin in Soil: A Review

Lignin is a major component of soil organic matter and also a rich source of carbon dioxide in soils. However, because of its complex structure and recalcitrant nature, lignin degradation is a major challenge. Efforts have been made from time to time to understand the lignin polymeric structure bett...

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Bibliographic Details
Published in:Sustainability 2017-07, Vol.9 (7), p.1163
Main Authors: Datta, Rahul, Kelkar, Aditi, Baraniya, Divyashri, Molaei, Ali, Moulick, Amitava, Meena, Ram, Formanek, Pavel
Format: Article
Language:English
Subjects:
Bacteria
Biodegradation
Carbon dioxide
Carbon sources
Decoloring
Environmental degradation
Enzymes
Forest soils
Fungi
Lignin
Lignin peroxidase
Ligninolytic enzymes
Manganese
Organic matter
Organic soils
Peroxidase
Plant biomass
Reviews
Soil degradation
Soil organic matter
Sustainability
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Summary:Lignin is a major component of soil organic matter and also a rich source of carbon dioxide in soils. However, because of its complex structure and recalcitrant nature, lignin degradation is a major challenge. Efforts have been made from time to time to understand the lignin polymeric structure better and develop simpler, economical, and bio-friendly methods of degradation. Certain enzymes from specialized bacteria and fungi have been identified by researchers that can metabolize lignin and enable utilization of lignin-derived carbon sources. In this review, we attempt to provide an overview of the complexity of lignin’s polymeric structure, its distribution in forest soils, and its chemical nature. Herein, we focus on lignin biodegradation by various microorganism, fungi and bacteria present in plant biomass and soils that are capable of producing ligninolytic enzymes such as lignin peroxidase (LiP), manganese peroxidase (MnP), versatile peroxidase (VP), and dye-decolorizing peroxidase (DyP). The relevant and recent reports have been included in this review.
ISSN:2071-1050
2071-1050
DOI:10.3390/su9071163