Evidence map›Paper›PMID 20724645›Full record

ArticlePlant physiology2010

Reproductive development modulates gene expression and metabolite levels with possible feedback inhibition of artemisinin in Artemisia annua.

Patrick R Arsenault, Daniel Vail, Kristin K Wobbe, Karen Erickson, Pamela J Weathers

Open access · hybridAbstract read
In one paragraph

Article in Plant physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

28 citing papers in PubMed, 81 citations in OpenAlex.

  1. Review
  2. Phytochemical Composition of Clonally PropagatedMolecules (Basel, Switzerland) · 2026
    Article
  3. Targeted Gene Modification ofInternational journal of molecular sciences · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. The SPB-Box Transcription FactorFrontiers in plant science · 2019
    Article
  8. Article
  9. Biotechnological approaches for artemisinin production in Artemisia.World journal of microbiology & biotechnology · 2018
    Review
  10. Article
  11. New insights into artemisinin regulation.Plant signaling & behavior · 2017
    Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Review
  20. Review
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

5 authors at 3 institutions in 1 country.

Patrick R ArsenaultDepartment of Biology and Biotechnology, Worcester Polytechnic Institute, Worcester, Massachusetts 01609, USA.
Daniel Vail
Kristin K Wobbe
Karen Erickson
Pamela J Weathers
Arkansas State University · USArkansas Biosciences Institute · USWorcester Polytechnic Institute · US

Funding

Artemisinin Biosynthesis: Role of Reactive OxygenR15GM069562 · NIGMS · WORCESTER POLYTECHNIC INSTITUTE · PI WEATHERS, PAMELA J · 2004 to 2010
$692k
NIGMS NIH HHS 2R15GM069562-02NIGMS NIH HHS 2R15GM069562-03
6 · The paper itself

Abstract

The relationship between the transition to budding and flowering in Artemisia annua and the production of the antimalarial sesquiterpene, artemisinin (AN), the dynamics of artemisinic metabolite changes, AN-related transcriptional changes, and plant and trichome developmental changes were measured. Maximum production of AN occurs during full flower stage within floral tissues, but that changes in the leafy bracts and nonbolt leaves as the plant shifts from budding to full flower. Expression levels of early pathway genes known to be involved in isopentenyl diphosphate and farnesyl diphosphate biosynthesis leading to AN were not immediately positively correlated with either AN or its precursors. However, we found that the later AN pathway genes, amorpha-4,11-diene synthase (ADS) and the cytochrome P450, CYP71AV1 (CYP), were more highly correlated with AN's immediate precursor, dihydroartemisinic acid, within all leaf tissues tested. In addition, leaf trichome formation throughout the developmental phases of the plant also appears to be more complex than originally thought. Trichome changes correlated closely with the levels of AN but not its precursors. Differences were observed in trichome densities that are dependent both on developmental stage (vegetative, budding, and flowering) and on position (upper and lower leaf tissue). AN levels declined significantly as plants matured, as did ADS and CYP transcripts. Spraying leaves with AN or artemisinic acid inhibited CYP transcription; artemisinic acid also inhibited ADS transcription. These data allow us to present a novel model for the differential control of AN biosynthesis as it relates to developmental stage and trichome maturation and collapse.

Indexed as

Artemisia annuaArtemisininsFlowersGene Expression Regulation, PlantPlant LeavesRNA, MessengerRNA, PlantTranscription, GeneticartemisininArtemisininsRNA, MessengerRNA, Plant

Identifiers

PMID20724645
PMCPMC2949044
OpenAlexW2112522116

What OpenQuestion holds

Textmetadata
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.