ArticleThe New phytologist2023
Evolution of p-coumaroylated lignin in eudicots provides new tools for cell wall engineering.
Article in The New phytologist, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 31 citations in OpenAlex.
- Physiological roles of lignins - tuning cell wall hygroscopy and biomechanics.The New phytologist · 2025Review
- Article
- Synthetic-biology approach for plant lignocellulose engineering.Plant biotechnology (Tokyo, Japan) · 2024Article
- Enhancing monolignol ferulate conjugate levels in poplar lignin via OsFMT1.Biotechnology for biofuels and bioproducts · 2024Article
- Lignin Hydrogenolysis: Phenolic Monomers from Lignin and Associated Phenolates across Plant Clades.ACS sustainable chemistry & engineering · 2023Article
- MdERF114 enhances the resistance of apple roots to Fusarium solani by regulating the transcription of MdPRX63.Plant physiology · 2023Article
- p-Coumaroylation of lignin occurs outside of commelinid monocots in the eudicot genus Morus (mulberry).Plant physiology · 2023Article
- "Exclusive" update: p-coumaroylation of lignin not restricted to commelinid monocots.Plant physiology · 2023Article
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ester-linked p-coumarate (pCA) is a hallmark feature of the secondary cell walls in commelinid monocot plants. It has been shown that pCA groups arise during lignin polymerisation from the participation of monolignol conjugates assembled by p-coumaroyl-CoA:monolignol transferase (PMT) enzymes, members of the BAHD superfamily of acyltransferases. Herein, we report that a eudicot species, kenaf (Hibiscus cannabinus), naturally contains p-coumaroylated lignin in the core tissues of the stems but not in the bast fibres. Moreover, we identified a novel acyltransferase, HcPMT, that shares <30% amino acid identity with known monocot PMT sequences. Recombinant HcPMT showed a preference in enzyme assays for p-coumaroyl-CoA and benzoyl-CoA as acyl donor substrates and sinapyl alcohol as an acyl acceptor. Heterologous expression of HcPMT in hybrid poplar trees led to the incorporation of pCA in lignin, but no improvement in the saccharification potential of the wood. This work illustrates the value in mining diverse plant taxa for new monolignol acyltransferases. Furthermore, the occurrence of pCA outside monocot lineages may represent another example of convergent evolution in lignin structure. This discovery expands textbook views on cell wall biochemistry and provides a new molecular tool for engineering the lignin of biomass feedstock plants.
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