Evidence map›Paper›PMID 31037808›Full record

ArticlePlant biotechnology journal2019

Discovery of key regulators of dark gland development and hypericin biosynthesis in St. John's Wort (Hypericum perforatum).

Paride Rizzo, Lothar Altschmied, Pauline Stark, Twan Rutten, André Gündel, Sarah Scharfenberg, Katrin Franke, Helmut Bäumlein, Ludger Wessjohann, Marcus Koch and 2 more

Open access · goldAbstract read
In one paragraph

Article in Plant biotechnology journal, 2019. 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
6.1field-weighted citation impact, top 4% 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, 40 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Does phenotyping ofFrontiers in plant science · 2022
    Review
  10. Article
  11. Article
  12. PSYCHE-A Valuable Experiment in Plant NMR-Metabolomics.Molecules (Basel, Switzerland) · 2020
    Article
  13. Review
  14. 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

12 authors at 4 institutions in 2 countries.

Paride RizzoLeibniz-Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK), Gatersleben, Germany.ORCID 0000-0003-3802-2005
Lothar AltschmiedLeibniz-Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK), Gatersleben, Germany.ORCID 0000-0002-7692-2971
Pauline StarkLeibniz-Institut für Pflanzenbiochemie (IPB), Halle (Saale), Germany.
Twan RuttenLeibniz-Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK), Gatersleben, Germany.ORCID 0000-0001-5891-6503
André GündelLeibniz-Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK), Gatersleben, Germany.ORCID 0000-0003-1055-7577
Sarah ScharfenbergLeibniz-Institut für Pflanzenbiochemie (IPB), Halle (Saale), Germany.
Katrin FrankeLeibniz-Institut für Pflanzenbiochemie (IPB), Halle (Saale), Germany.
Helmut BäumleinLeibniz-Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK), Gatersleben, Germany.
Ludger WessjohannLeibniz-Institut für Pflanzenbiochemie (IPB), Halle (Saale), Germany.ORCID 0000-0003-2060-8235
Marcus KochRuprecht Karls Universität Heidelberg, Heidelberg, Germany.
Ljudmilla BorisjukLeibniz-Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK), Gatersleben, Germany.
Timothy F SharbelLeibniz-Institut für Pflanzengenetik und Kulturpflanzenvorschung (IPK), Gatersleben, Germany.ORCID 0000-0002-3450-2733
Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK) · DELeibniz Institute of Plant Biochemistry · DEHeidelberg University · DEUniversity of Saskatchewan · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hypericin is a molecule of high pharmaceutical importance that is synthesized and stored in dark glands (DGs) of St. John's Wort (Hypericum perforatum). Understanding which genes are involved in dark gland development and hypericin biosynthesis is important for the development of new Hypericum extracts that are highly demanded for medical applications. We identified two transcription factors whose expression is strictly synchronized with the differentiation of DGs. We correlated the content of hypericin, pseudohypericin, endocrocin, skyrin glycosides and several flavonoids with gene expression and DG development to obtain a revised model for hypericin biosynthesis. Here, we report for the first time genotypes which are polymorphic for the presence/total absence (G+/G-) of DGs in their placental tissues (PTs). DG development was characterized in PTs using several microscopy techniques. Fourier transform infrared microscopy was established as a novel method to precisely locate polyaromatic compounds, such as hypericin, in plant tissues. In addition, we obtained transcriptome and metabolome profiles of unprecedented resolution in Hypericum. This study addresses for the first time the development of dark glands and identifies genes that constitute strong building blocks for the further elucidation of hypericin synthesis, its manipulation in plants, its engineering in microbial systems and its applications in medical research.

Indexed as

AnthracenesFlavonoidsGenes, PlantHypericumMetabolomePeryleneTranscriptomeAnthracenesFlavonoidshypericinPerylenedark glandgene discoveryhypericinHypericum perforatummetabolometranscriptome

Identifiers

PMID31037808
PMCPMC6835128
OpenAlexW2942989531

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.