Evidence map›Paper›PMID 19221758›Full record

ArticlePlant cell reports2009

High frequency Agrobacterium tumefaciens-mediated plant transformation induced by ammonium nitrate.

Alex Boyko, Aki Matsuoka, Igor Kovalchuk

Abstract read
PubMed Publisher
In one paragraph

Article in Plant cell reports, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

5 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Plant regeneration from mature embryo of commercial Indian bread wheat (Triticum aestivum L.) cultivars.Physiology and molecular biology of plants : an international journal of functional plant biology · 2012
    Article
  5. Article
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

3 authors at 1 institution in 1 country.

Alex BoykoDepartment of Biological Sciences, University of Lethbridge, Lethbridge, Canada.
Aki Matsuoka
Igor Kovalchuk
University of Lethbridge · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Success in plant genetic transformation depends on the efficiency of explant regeneration and transgene integration. Whereas the former one depends on explant totipotency, the latter depends on the activity of host DNA repair and chromatin organisation factors. We analyzed whether factors that result in an increase in recombination frequency can also increase transformation efficiency. Here, we report that a threefold increase in the concentration of NH(4)NO(3) in the growth medium results in more than a threefold increase in the Agrobacterium tumefaciens-mediated transformation frequency of Nicotiana tabacum plants. Regeneration of calli without selection showed that the increase in transformation frequency was primarily due to the increase in transgene integration efficiency rather than in tissue regeneration efficiency. PCR analysis of insertion sites showed a decrease in the frequency of truncations of the T-DNA right border and an increase on the left border. We hypothesize that exposure to ammonium nitrate modifies the activity of host factors leading to higher frequency of transgene integrations and possibly to the shift in the mechanism of transgene integrations.

Indexed as

Transformation, GeneticAgrobacterium tumefaciensArabidopsisCulture MediaDNA, BacterialGenetic VectorsGene Transfer TechniquesNicotianaNitratesPlants, Genetically ModifiedRegenerationTransgenesammonium nitrateCulture MediaDNA, BacterialNitratesT-DNA

Identifiers

PMID19221758
OpenAlexW2017712764

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.