Evidence map›Paper›PMID 9349284›Full record

ArticlePlant molecular biology1997

Expression of glyoxylate cycle genes in cucumber roots responds to sugar supply and can be activated by shading or defoliation of the shoot.

I Ismail, L De Bellis, A Alpi, S M Smith

Abstract read
PubMed Publisher
In one paragraph

Article in Plant molecular biology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
4.8field-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

9 citing papers in PubMed, 30 citations in OpenAlex.

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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

4 authors at 2 institutions in 2 countries.

I IsmailInstitute of Cell and Molecular Biology, University of Edinburgh, UK.
L De Bellis
A Alpi
S M Smith
University of Edinburgh · GBUniversity of Pisa · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

When cucumber roots are excised and incubated without a carbon source, isocitrate lyase (ICL) and malate synthase (MS) mRNAs increase significantly in amount. However, if sucrose is added to the excised roots, the mRNAs do not accumulate. Hairy roots obtained by transformation with Agrobacterium rhizogenes show the same response. Transgenic hairy roots containing the Icl and Ms gene promoters fused to the GUS reporter gene, have very low GUS activity which increases dramatically when roots are incubated in the absence of sugar, indicating regulation at the transcriptional level. Staining of sugar-deprived roots shows that GUS activity is concentrated mainly in root tips and lateral root primordia, where demand for carbohydrate is greatest. In order to determine if Icl and Ms genes are expressed in roots of whole plants under conditions which may occur in nature, cucumber plants were subjected to reduced light intensity or defoliation. In both cases increases were observed in ICL and MS mRNAs. These treatments also reduced root sugar content, consistent with the hypothesis that sugar supply could control expression of Icl and Ms genes in roots of whole plants.

Indexed as

Cucumis sativusCulture TechniquesDarknessGene Expression Regulation, PlantGenes, PlantGenes, ReporterGlucuronidaseGlyoxylatesIsocitrate LyaseMalate SynthasePlant LeavesPlant RootsPlants, Genetically ModifiedPlant ShootsRecombinant Fusion ProteinsRNA, MessengerGlucuronidaseGlyoxylatesglyoxylic acidIsocitrate LyaseMalate SynthaseRecombinant Fusion ProteinsRNA, MessengerRNA, PlantSucrose

Identifiers

PMID9349284
OpenAlexW198899649

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.