ArticleCurrent microbiology2016
Effects of Homologous Expression of 1,4-Benzoquinone Reductase and Homogentisate 1,2-Dioxygenase Genes on Wood Decay in Hyper-Lignin-Degrading Fungus Phanerochaete sordida YK-624.
Article in Current microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 16 citations in OpenAlex.
- Metabolic mechanism of lignin-derived aromatics in white-rot fungi.Applied microbiology and biotechnology · 2024Review
- Article
- A Putative Lignin Copper Oxidase fromJournal of fungi (Basel, Switzerland) · 2021Article
- Enzymatic removal of inhibitory compounds from lignocellulosic hydrolysates for biomass to bioproducts applications.World journal of microbiology & biotechnology · 2020Review
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4 authors at 1 institution in 1 country.
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Abstract
We investigated the function of 1,4-benzoquinone reductase (BQR)- and homogentisate 1,2-dioxygenase (HGD)-like genes in wood degradation by Phanerochaete sordida YK-624, which exhibits high ligninolytic activity and selectivity. We determined homologous expression in the genomic and cDNA sequences of BQR- and HGD-like genes in P. sordida YK-624 (PsBQR and PsHGD). Both genes shared high homology (≥90 % amino acid sequence similarity) with the corresponding genes in Phanerochaete chrysosporium. These genes were co-transformed with a reporter gene into an uracil auxotrophic mutant of P. sordida YK-624. The PsBQR and PsHGD co-transformants exhibited lower holocellulolytic activity and higher ligninolytic selectivity than the control transformants. In liquid culture with vanillin, both co-transformants significantly accelerated vanillin degradation. Thus, we suggest that the rapid metabolism of low-molecular weight lignin fragments, due to the homologous expression of BQR- and HGD-like genes, affects quinone redox cycling to produce hydroxyl radicals, thereby decreasing holocellulose degradation and increasing ligninolytic selectivity.
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