Scientists solve 200-year-old puzzle of how tobacco plants make nicotine
Scientists have solved a 200-year-old mystery regarding how tobacco plants produce nicotine. This discovery could lead to safer production methods for medicines and vaccines using tobacco, without the presence of nicotine. The research reveals the genes and enzymes involved in nicotine synthesis, paving the way for innovative biotechnological applications.
- ▪The puzzle of nicotine production in tobacco plants has existed since the late 1820s.
- ▪Researchers identified the missing genes and enzymes necessary for nicotine synthesis.
- ▪The discovery could allow for the repurposing of nicotine production for pharmaceutical uses.
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Story provenance
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Record
| Original publisher | University of York |
| Canonical URL | https://www.york.ac.uk/news-and-events/news/2026/research/200-year-old-puzzle-tobacco-plants-nicotine/ |
| Publication time | Fri, 22 May 2026 12:16:56 +0000 |
| Retrieval time | 2026-05-22T12:32:02.120Z |
| Last seen | 2026-05-22T12:32:02.120Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | RHQSwZ7kNIU2 · 2 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Scientists solve 200-year-old puzzle of how tobacco plants make nicotine News Posted on Monday 18 May 2026 Scientists have uncovered how tobacco plants naturally make nicotine, solving a mystery that has puzzled researchers for nearly two centuries. The puzzle of how tobacco plants produce nicotine ha been around since the late 1820s The discovery, published in Nature Communications, could lead to safer production of medicines and vaccines using tobacco plants, without the unwanted nicotine. Nicotine, the chemical that makes tobacco products addictive, has been used by humans for over 10,000 years. But despite decades of study, scientists never fully understood how plants like Nicotiana tabacum - the main source of tobacco - actually build the nicotine molecule.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at University of York.
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