Evidence map›Paper›PMID 17710406›Full record

ArticlePlant cell reports2007

Evidence of artemisinin production from IPP stemming from both the mevalonate and the nonmevalonate pathways.

Melissa J Towler, Pamela J Weathers

Abstract read
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Article in Plant cell reports, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
3.8field-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

54 citing papers in PubMed, 175 citations in OpenAlex.

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  16. An investigation of the3 Biotech · 2018
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  18. Molecular Characterization of theFrontiers in plant science · 2018
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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

2 authors at 1 institution in 1 country.

Melissa J TowlerDepartment of Biology/Biotechnology, Worcester Polytechnic Institute, Worcester, MA 01609, USA.
Pamela J Weathers
Worcester 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 1 R15 GM069562-01
6 · The paper itself

Abstract

The potent antimalarial sesquiterpene lactone, artemisinin, is produced in low quantities by the plant Artemisia annua L. The source and regulation of the isopentenyl diphosphate (IPP) used in the biosynthesis of artemisinin has not been completely characterized. Terpenoid biosynthesis occurs in plants via two IPP-generating pathways: the mevalonate pathway in the cytosol, and the non-mevalonate pathway in plastids. Using inhibitors specific to each pathway, it is possible to resolve which supplies the IPP precursor to the end product. Here, we show the effects of inhibition on the two pathways leading to IPP for artemisinin production in plants. We grew young (7-14 days post cotyledon) plants in liquid culture, and added mevinolin to the medium to inhibit the mevalonate pathway, or fosmidomycin to inhibit the non-mevalonate pathway. Artemisinin levels were measured after 7-14 days incubation, and production was significantly reduced by each inhibitor compared to controls, thus, it appears that IPP from both pathways is used in artemisinin production. Also when grown in miconazole, an inhibitor of sterol biosynthesis, there was a significant increase in artemisinin compared to controls suggesting that carbon was shifted from sterols into sesquiterpenes. Collectively these results indicate that artemisinin is probably biosynthesized from IPP pools from both the plastid and the cytosol, and that carbon from competing pathways can be channeled toward sesquiterpenes. This information will help advance our understanding of the regulation of in planta production of artemisinin.

Indexed as

AntimalarialsArtemisia annuaArtemisininsBiomassCarbonCotyledonCytosolHemiterpenesLovastatinMevalonic AcidMiconazoleModels, BiologicalOrganophosphorus CompoundsPlastidsAntimalarialsartemisininArtemisininsCarbonHemiterpenesisopentenyl pyrophosphateLovastatinMevalonic AcidMiconazoleOrganophosphorus Compounds

Identifiers

PMID17710406
OpenAlexW2057823601

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.