Evidence map›Paper›PMID 37488711›Full record

ArticleThe New phytologist2023

An improved Nicotiana benthamiana bioproduction chassis provides novel insights into nicotine biosynthesis.

Katharina Vollheyde, Quentin M Dudley, Ting Yang, Mehmet T Oz, Davide Mancinotti, Mariano Olivera Fedi, Darren Heavens, Gareth Linsmith, Monika Chhetry, Mark A Smedley and 4 more

Open access · hybridAbstract read
In one paragraph

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 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
8.3field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
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  9. Optimized expression of human interleukin-15 inBiotechnology reports (Amsterdam, Netherlands) · 2025
    Article
  10. EfficientInternational journal of molecular sciences · 2025
    Article
  11. Review
  12. Article
  13. Article
  14. Expression of kiwifruit-derived actinidin inFrontiers in plant science · 2024
    Article
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 3 institutions in 2 countries.

Katharina Vollheyde *Department of Plant and Environmental Sciences, University of Copenhagen, 1871 Frederiksberg, Copenhagen, Denmark.ORCID 0000-0002-9592-4470
Quentin M Dudley *Earlham Institute, Norwich Research Park, Norwich, Norfolk, NR4 7UZ, UK.ORCID 0000-0002-2987-5172
Ting YangDepartment of Plant and Environmental Sciences, University of Copenhagen, 1871 Frederiksberg, Copenhagen, Denmark.ORCID 0000-0001-8872-8749
Mehmet T OzEarlham Institute, Norwich Research Park, Norwich, Norfolk, NR4 7UZ, UK.ORCID 0000-0002-0042-2671
Davide MancinottiDepartment of Plant and Environmental Sciences, University of Copenhagen, 1871 Frederiksberg, Copenhagen, Denmark.ORCID 0000-0002-4075-9893
Mariano Olivera FediEarlham Institute, Norwich Research Park, Norwich, Norfolk, NR4 7UZ, UK.ORCID 0000-0001-9174-2621
Darren HeavensEarlham Institute, Norwich Research Park, Norwich, Norfolk, NR4 7UZ, UK.ORCID 0000-0001-5418-7868
Gareth LinsmithEarlham Institute, Norwich Research Park, Norwich, Norfolk, NR4 7UZ, UK.ORCID 0000-0003-0934-2034
Monika ChhetryJohn Innes Centre, Norwich Research Park, Norwich, Norfolk, NR4 7UH, UK.
Mark A SmedleyJohn Innes Centre, Norwich Research Park, Norwich, Norfolk, NR4 7UH, UK.ORCID 0000-0002-6162-4795
Wendy A HarwoodJohn Innes Centre, Norwich Research Park, Norwich, Norfolk, NR4 7UH, UK.ORCID 0000-0002-4323-9009
David SwarbreckEarlham Institute, Norwich Research Park, Norwich, Norfolk, NR4 7UZ, UK.ORCID 0000-0002-5453-1013
Fernando Geu-FloresDepartment of Plant and Environmental Sciences, University of Copenhagen, 1871 Frederiksberg, Copenhagen, Denmark.ORCID 0000-0002-5735-9810
Nicola J PatronEarlham Institute, Norwich Research Park, Norwich, Norfolk, NR4 7UZ, UK.ORCID 0000-0002-8389-1851
Norwich Research Park · GBUniversity of Copenhagen · DKJohn Innes Centre · GB

Funding

Biotechnology and Biological Sciences Research Council
6 · The paper itself

Abstract

The model plant Nicotiana benthamiana is an increasingly attractive organism for the production of high-value, biologically active molecules. However, N. benthamiana accumulates high levels of pyridine alkaloids, in particular nicotine, which complicates the downstream purification processes. Here, we report a new assembly of the N. benthamiana genome as well as the generation of low-nicotine lines by CRISPR/Cas9-based inactivation of berberine bridge enzyme-like proteins (BBLs). Triple as well as quintuple mutants accumulated three to four times less nicotine than the respective control lines. The availability of lines without functional BBLs allowed us to probe their catalytic role in nicotine biosynthesis, which has remained obscure. Notably, chiral analysis revealed that the enantiomeric purity of nicotine was fully lost in the quintuple mutants. In addition, precursor feeding experiments showed that these mutants cannot facilitate the specific loss of C6 hydrogen that characterizes natural nicotine biosynthesis. Our work delivers an improved N. benthamiana chassis for bioproduction and uncovers the crucial role of BBLs in the stereoselectivity of nicotine biosynthesis.

Indexed as

AlkaloidsNicotianaNicotineAlkaloidsNicotinealkaloid biosynthesisgene editingmetabolic engineeringNicotiana benthamiananicotine

Identifiers

PMID37488711
PMCPMC10952274
OpenAlexW4385231046

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.