Functional characterization of double bond reductase involved in bisbibenzyl biosynthesis in Marchantia polymorpha
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ID: 321260
2026
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Abstract
Abstract Bisbibenzyls are a family of characteristic secondary metabolites found in liverworts. In this study, we identified a double bond reductase (DBR) involved in the biosynthesis of bisbibenzyls in Marchantia polymorpha. Phylogenetic analysis suggests that Mp1g20080, which is highly homologous to the known DBR from Marchantia paleacea, is a candidate for the MpDBR in M. polymorpha. UV-C irradiation, which induces the accumulation of bisbibenzyls, significantly increased MpDBR expression. The recombinant MpDBR exhibited double bond reduction activity against p-coumaraldehyde. Wilting and brown thalli were observed in the Mpdbr knock-out lines, and metabolite analysis confirmed the accumulation of p-coumaric acid and a decrease in lunularic acid and bisbibenzyl levels in the Mpdbr knock-out lines. Our results demonstrated that Mp1g20080 is a major DBR in the bisbibenzyl biosynthetic pathway of M. polymorpha.
| Reference Key |
openalex_W7168624915
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| Authors | Akira Suzuki, Naoki Kitaoka, Uki Kikawada, Kie Sato, T Watanabe, Satoshi Naramoto, Toshiyuki Waki, Kosaku Takahashi, Hideyuki Matsuura |
| Journal | bioscience biotechnology and biochemistry |
| Year | 2026 |
| DOI |
10.1093/bbb/zbag108
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| URL | |
| Keywords | Keywords not found |
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