We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Bacterial catabolism of lignin-derived aromatics: New findings in a recent decade: Update on bacterial lignin catabolism.
- Authors
Kamimura, Naofumi; Takahashi, Kenji; Mori, Kosuke; Araki, Takuma; Fujita, Masaya; Higuchi, Yudai; Masai, Eiji
- Abstract
Lignin is the most abundant phenolic polymer; thus, its decomposition by microorganisms is fundamental to carbon cycling on earth. Lignin breakdown is initiated by depolymerization catalysed by extracellular oxidoreductases secreted by white-rot basidiomycetous fungi. On the other hand, bacteria play a predominant role in the mineralization of lignin-derived heterogeneous low-molecular-weight aromatic compounds. The outline of bacterial catabolic pathways for lignin-derived bi- and monoaryls are typically composed of the following sequential steps: (i) funnelling of a wide variety of lignin-derived aromatics into vanillate and syringate, (ii) O demethylation of vanillate and syringate to form catecholic derivatives and (iii) aromatic ring-cleavage of the catecholic derivatives to produce tricarboxylic acid cycle intermediates. Knowledge regarding bacterial catabolic systems for lignin-derived aromatic compounds is not only important for understanding the terrestrial carbon cycle but also valuable for promoting the shift to a low-carbon economy via biological lignin valorisation. This review summarizes recent progress in bacterial catabolic systems for lignin-derived aromatic compounds, including newly identified catabolic pathways and genes for decomposition of lignin-derived biaryls, transcriptional regulation and substrate uptake systems. Recent omics approaches on catabolism of lignin-derived aromatic compounds are also described.
- Subjects
LIGNIN biodegradation; MICROBIAL ecology; CARBON cycle; CARBON fixation; OXIDOREDUCTASES
- Publication
Environmental Microbiology Reports, 2017, Vol 9, Issue 6, p679
- ISSN
1758-2229
- Publication type
Article
- DOI
10.1111/1758-2229.12597