Metabolism
Does the MEP pathway feed ginsenoside production?
Open access · cc by · source: Europe PMC
Transcriptomics implicates the chloroplastic MEP pathway—highlighting IspD—in ginsenoside biosynthesis beyond the classic MVA route.
How this study connects
Role on claims
Each row is a claim on a concept or method page where this paper supports, challenges, or qualifies the statement. Roles are hand-checked — not a model guess.
MEP pathway contributes to ginsenoside biosynthesis; IspD predicted as a key MEP enzyme; tissue patterns match ginsenoside distribution.
Evidence for the claim as stated.
RNA-seq can be joined to genetics and to metabolites, still without proving causation. In 77 Yoruba LCLs, inter-individual methylation tracked genotypes and correlated with RNA-seq expression; in Panax ginseng, MEP-pathway expression patterns were taken to contribute to ginsenoside biosynthesis with IspD predicted as a key enzyme.
Evidence for the claim as stated.
Study at a glance
- Design
- Animal / in-vitro — RNA-seq of Panax ginseng roots by age and of multiple 5-year tissues, related to ginsenoside patterns
- N
- Root samples of 1–5-year plants plus leaves, stems, rhizomes, and root cores of 5-year plants; two biological replicates per RNA-seq condition
- Population
- Cultivated Panax ginseng tissues
- Outcome
- Chloroplastic MEP pathway genes, including IspD, co-vary with ginsenoside accumulation beyond the classic MVA route
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Inspect source passages
Does the MEP pathway feed ginsenoside production?
These passages occur verbatim in the stored paper text. They support the points listed below; they do not verify every statement in the explanation.
What pathways make IPP/DMAPP in plants?
MVA pathway and chloroplastic MEP pathway for IPP and DMAPP synthesis
What was historically accepted for ginsenosides?
So far, it is accepted that the MVA pathway participates in the ginsenoside biosynthesis i
Key findings
MEP pathway contributes to ginsenoside biosynthesis; IspD predicted as a key MEP enzyme; tissue patterns match ginsenoside distribution.
Methodology
Profiled Panax ginseng transcriptomes across tissues and related MEP/MVA pathway expression to ginsenoside patterns.
Limitations
Does not alone prove industrial-scale pathway engineering yields.
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