Evidence map›Paper›PMID 9701576›Full record

ArticlePlant physiology1998

Gibberellin dose-response regulation of GA4 gene transcript levels in Arabidopsis.

R J Cowling, Y Kamiya, H Seto, N P Harberd

Open access · greenAbstract read
In one paragraph

Article in Plant physiology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed
3.6field-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

75 citing papers in PubMed, 185 citations in OpenAlex.

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  13. Article
  14. Gibberellins Act Downstream ofPlant physiology · 2019
    Article
  15. Identification and Characterization ofInternational journal of molecular sciences · 2019
    Article
  16. Biosynthesis of DHGANature communications · 2019
    Article
  17. Article
  18. Article
  19. Article
  20. Article

15 more citing papers are in PubMed but not listed here.

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.

R J CowlingDepartment of Molecular Genetics, John Innes Centre, Colney Lane, Norwich NR4 7UJ, United Kingdom.
Y Kamiya
H Seto
N P Harberd
John Innes Centre · GBRIKEN · JP

Funding

Biotechnology and Biological Sciences Research Council BBS/E/J/00000583
6 · The paper itself

Abstract

The gibberellins (GAs) are a complex family of diterpenoid compounds, some of which are potent endogenous regulators of plant growth. As part of a feedback control of endogenous GA levels, active GAs negatively regulate the abundance of mRNA transcripts encoding GA biosynthesis enzymes. For example, Arabidopsis GA4 gene transcripts encode GA 3beta-hydroxylase, an enzyme that catalyzes the conversion of inactive to active GAs. Here we show that active GAs regulate GA4 transcript abundance in a dose-dependent manner, and that down-regulation of GA4 transcript abundance is effected by GA4 (the product of 3beta-hydroxylation) but not by its immediate precursor GA9 (the substrate). Comparison of several different GA structures showed that GAs active in promoting hypocotyl elongation were also active in regulating GA4 transcript abundance, suggesting that similar GA:receptor and subsequent signal transduction processes control these two responses. It is interesting that these activities were not restricted to 3beta-hydroxylated GAs, being also exhibited by structures that were not 3beta-hydroxylated but that had another electronegative group at C-3. We also show that GA-mediated control of GA4 transcript abundance is disrupted in the GA-response mutants gai and spy-5. These observations define a sensitive homeostatic mechanism whereby plants may regulate their endogenous GA levels.

Indexed as

ArabidopsisBase SequenceDNA PrimersDose-Response Relationship, DrugFeedbackGene Expression Regulation, PlantGibberellinsMutationRNA, MessengerStructure-Activity RelationshipDNA PrimersGibberellinsRNA, Messenger

Identifiers

PMID9701576
PMCPMC34884
OpenAlexW1996497381

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.