Uptake system of lignin-derived aromatic acids in promising Sphingomonadaceae strains for lignin valorization through biological funneling

Abstract The production of value-added chemicals from lignin-derived aromatic compounds through bacterial catabolism has attracted attention. Sphingobium lignivorans SYK-6 can catabolize various lignin-derived aromatic compounds that can be used for this purpose. PcaK (Sl-PcaK), a member of the majo...

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Main Authors: Masaya Fujita, Ryo Hirano, Kota Nagayoshi, Naofumi Kamimura, Eiji Masai
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-08757-x
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author Masaya Fujita
Ryo Hirano
Kota Nagayoshi
Naofumi Kamimura
Eiji Masai
author_facet Masaya Fujita
Ryo Hirano
Kota Nagayoshi
Naofumi Kamimura
Eiji Masai
author_sort Masaya Fujita
collection DOAJ
description Abstract The production of value-added chemicals from lignin-derived aromatic compounds through bacterial catabolism has attracted attention. Sphingobium lignivorans SYK-6 can catabolize various lignin-derived aromatic compounds that can be used for this purpose. PcaK (Sl-PcaK), a member of the major facilitator superfamily (MFS) transporters in SYK-6, is known to be involved in the uptake of protocatechuic acid (PCA) and vanillic acid (VA) in the inner membrane. Here, we demonstrated that Sl-PcaK also mediates the uptake of 4-hydroxybenzoic acid (HBA), syringic acid (SA), and ferulic acid (FA). Saro_0804 (Na-pcaK), with 58% amino acid sequence identity to Sl-PcaK, is present in Novosphingobium aromaticivorans DSM 12444. Na-pcaK plays a role in the uptake of PCA, HBA, VA, and SA. The increased expression of Sl-pcaK or Na-pcaK in SYK-6 cells improved the conversion rates of VA, SA, and FA 1.12-1.33-fold compared with the control strain, suggesting that these genes could serve as tools to improve the production efficiency of target metabolites.
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spelling doaj-art-4eb739bd5b2f46ad92578a12e24740f42025-08-20T04:01:34ZengNature PortfolioScientific Reports2045-23222025-07-0115111110.1038/s41598-025-08757-xUptake system of lignin-derived aromatic acids in promising Sphingomonadaceae strains for lignin valorization through biological funnelingMasaya Fujita0Ryo Hirano1Kota Nagayoshi2Naofumi Kamimura3Eiji Masai4Department of Materials Science and Bioengineering, Nagaoka University of TechnologyDepartment of Materials Science and Bioengineering, Nagaoka University of TechnologyDepartment of Materials Science and Bioengineering, Nagaoka University of TechnologyDepartment of Materials Science and Bioengineering, Nagaoka University of TechnologyDepartment of Materials Science and Bioengineering, Nagaoka University of TechnologyAbstract The production of value-added chemicals from lignin-derived aromatic compounds through bacterial catabolism has attracted attention. Sphingobium lignivorans SYK-6 can catabolize various lignin-derived aromatic compounds that can be used for this purpose. PcaK (Sl-PcaK), a member of the major facilitator superfamily (MFS) transporters in SYK-6, is known to be involved in the uptake of protocatechuic acid (PCA) and vanillic acid (VA) in the inner membrane. Here, we demonstrated that Sl-PcaK also mediates the uptake of 4-hydroxybenzoic acid (HBA), syringic acid (SA), and ferulic acid (FA). Saro_0804 (Na-pcaK), with 58% amino acid sequence identity to Sl-PcaK, is present in Novosphingobium aromaticivorans DSM 12444. Na-pcaK plays a role in the uptake of PCA, HBA, VA, and SA. The increased expression of Sl-pcaK or Na-pcaK in SYK-6 cells improved the conversion rates of VA, SA, and FA 1.12-1.33-fold compared with the control strain, suggesting that these genes could serve as tools to improve the production efficiency of target metabolites.https://doi.org/10.1038/s41598-025-08757-xLignin valorizationBacterial catabolismAromatic acidsMFS transportersABC transporters
spellingShingle Masaya Fujita
Ryo Hirano
Kota Nagayoshi
Naofumi Kamimura
Eiji Masai
Uptake system of lignin-derived aromatic acids in promising Sphingomonadaceae strains for lignin valorization through biological funneling
Scientific Reports
Lignin valorization
Bacterial catabolism
Aromatic acids
MFS transporters
ABC transporters
title Uptake system of lignin-derived aromatic acids in promising Sphingomonadaceae strains for lignin valorization through biological funneling
title_full Uptake system of lignin-derived aromatic acids in promising Sphingomonadaceae strains for lignin valorization through biological funneling
title_fullStr Uptake system of lignin-derived aromatic acids in promising Sphingomonadaceae strains for lignin valorization through biological funneling
title_full_unstemmed Uptake system of lignin-derived aromatic acids in promising Sphingomonadaceae strains for lignin valorization through biological funneling
title_short Uptake system of lignin-derived aromatic acids in promising Sphingomonadaceae strains for lignin valorization through biological funneling
title_sort uptake system of lignin derived aromatic acids in promising sphingomonadaceae strains for lignin valorization through biological funneling
topic Lignin valorization
Bacterial catabolism
Aromatic acids
MFS transporters
ABC transporters
url https://doi.org/10.1038/s41598-025-08757-x
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AT ryohirano uptakesystemofligninderivedaromaticacidsinpromisingsphingomonadaceaestrainsforligninvalorizationthroughbiologicalfunneling
AT kotanagayoshi uptakesystemofligninderivedaromaticacidsinpromisingsphingomonadaceaestrainsforligninvalorizationthroughbiologicalfunneling
AT naofumikamimura uptakesystemofligninderivedaromaticacidsinpromisingsphingomonadaceaestrainsforligninvalorizationthroughbiologicalfunneling
AT eijimasai uptakesystemofligninderivedaromaticacidsinpromisingsphingomonadaceaestrainsforligninvalorizationthroughbiologicalfunneling