ArticleThe Plant journal : for cell and molecular biology2025
Phenolic metabolism in Sarcandra glabra is mediated by distinct BAHD hydroxycinnamoyltransferases.
Article in The Plant journal : for cell and molecular biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Identification and characterization of BAHD hydroxycinnamoyltransferases in the fern Neoblechnum brasiliense.The Plant journal : for cell and molecular biology · 2026Article
- Trade-off between growth, nutrient absorption and medicinal quality ofFrontiers in plant science · 2026Article
- Phenolic compounds in species of the Blechnaceae.Plant biology (Stuttgart, Germany) · 2026Article
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2 authors.
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Abstract
Sarcandra glabra (Chloranthaceae) has an elaborate phenolic metabolism, encompassing various hydroxycinnamic acid esters. This may imply that multiple hydroxycinnamoyltransferases are involved in establishing this spectrum of natural compounds. Five coding sequences from S. glabra, belonging to the superfamily of BAHD acyltransferases, have been amplified from S. glabra cDNA, and the proteins were expressed in Escherichia coli. By assaying the proteins biochemically, the main substrates of these enzymes were identified as p-coumaroyl- and caffeoyl-CoA as donor substrates together with varying acceptor substrates. SgHST mainly forms p-coumaroyl- and caffeoylshikimic acid, but also the corresponding quinic acid esters as well as amides with 3- and 5-hydroxyanthranilic acids. SgHQT1 predominantly catalyzes the formation of p-coumaroyl- and caffeoyl-5-O-quinic acid, while SgHQT2 correspondingly forms p-coumaroyl- and caffeoyl-4-O-quinic acid. To our knowledge, this is the first characterized enzyme forming cryptochlorogenic acid and its precursor p-coumaroyl-4-O-quinic acid. SgRAS synthesizes rosmarinic acid and its precursors (caffeoyl-4'-hydroxyphenyllactic, p-coumaroyl-4'-hydroxyphenyllactic, p-coumaroyl-3',4'-dihydroxyphenyllactic acids) as well as amides with aromatic d-amino acids. No substrates could be identified for the fifth sequence, SgHCT-F, which phylogenetically groups with benzyl alcohol O-benzoyltransferases. All enzymes, except SgHCT-F, were fully kinetically characterized, and their expression in different tissues of S. glabra was assessed.
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