Evidence map›Paper›PMID 19234674›Full record

ArticlePlant molecular biology2009

Spermine facilitates recovery from drought but does not confer drought tolerance in transgenic rice plants expressing Datura stramonium S-adenosylmethionine decarboxylase.

Ariadna Peremarti, Ludovic Bassie, Paul Christou, Teresa Capell

Abstract read
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In one paragraph

Article in Plant molecular biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 71 citations in OpenAlex.

  1. Review
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  7. Improvement of Drought Tolerance in Rice (BioMed research international · 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

4 authors at 1 institution in 1 country.

Ariadna PeremartiDepartament de Producció Vegetal i Ciència Forestal, ETSEA, Universitat de Lleida, Lleida, Spain.
Ludovic Bassie
Paul Christou
Teresa Capell
Universitat de Lleida · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Polyamines are known to play important roles in plant stress tolerance but it has been difficult to determine precise functions for each type of polyamine and their interrelationships. To dissect the roles of putrescine from the higher polyamines spermidine and spermine, we generated transgenic rice plants constitutively expressing a heterologous S-adenosylmethionine decarboxylase (SAMDC) gene from Datura stramonium so that spermidine and spermine levels could be investigated while maintaining a constant putrescine pool. Whereas transgenic plants expressing arginine decarboxylase (ADC) produced higher levels of putrescine, spermidine and spermine, and were protected from drought stress, transgenic plants expressing SAMDC produced normal levels of putrescine and showed drought symptoms typical of wild type plants under stress, but the transgenic plants showed a much more robust recovery on return to normal conditions (90% full recovery compared to 25% partial recovery for wild type plants). At the molecular level, both wild type and transgenic plants showed transient reductions in the levels of endogenous ADC1 and SAMDC mRNA, but only wild type plants showed a spike in putrescine levels under stress. In transgenic plants, there was no spike in putrescine but a smooth increase in spermine levels at the expense of spermidine. These results confirm and extend the threshold model for polyamine activity in drought stress, and attribute individual roles to putrescine, spermidine and spermine.

Indexed as

DroughtsAdenosylmethionine DecarboxylaseAmino Acid SequenceCarboxy-LyasesDatura stramoniumMolecular Sequence DataOryzaPlant ProteinsPlants, Genetically ModifiedRNA, PlantSpermineStress, PhysiologicalAdenosylmethionine Decarboxylasearginine decarboxylaseCarboxy-LyasesPlant ProteinsRNA, PlantSpermine

Identifiers

PMID19234674
OpenAlexW2090674376

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.