Evidence map›Paper›PMID 22009051›Full record

ArticlePlant cell reports2012

Agrobacterium-mediated transformation of Eucalyptus globulus using explants with shoot apex with introduction of bacterial choline oxidase gene to enhance salt tolerance.

Etsuko Matsunaga, Kazuya Nanto, Masatoshi Oishi, Hiroyasu Ebinuma, Yoshihiko Morishita, Nozomu Sakurai, Hideyuki Suzuki, Daisuke Shibata, Teruhisa Shimada

Abstract read
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In one paragraph

Article in Plant cell reports, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

16 citing papers in PubMed, 53 citations in OpenAlex.

  1. Integrative Techniques for Hybrid Breeding inPlants (Basel, Switzerland) · 2026
    Review
  2. Regeneration and Genetic Transformation inPlants (Basel, Switzerland) · 2024
    Review
  3. Review
  4. Frontiers in plant science · 2022
    Article
  5. Article
  6. Frontiers in plant science · 2022
    Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Transcriptional enhancement of a bacterialPlant biotechnology (Tokyo, Japan) · 2018
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. 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

9 authors at 2 institutions in 1 country.

Etsuko MatsunagaAgri-Biotechnology Research Laboratory Nippon Paper Industries Co., Ltd., Kita-ku, Tokyo, Japan. etsukom@np-g.com
Kazuya Nanto
Masatoshi Oishi
Hiroyasu Ebinuma
Yoshihiko Morishita
Nozomu Sakurai
Hideyuki Suzuki
Daisuke Shibata
Teruhisa Shimada
Nippon Paper Industries (Japan) · JPKazusa DNA Research Institute · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Eucalyptus globulus is one of the most economically important plantation hardwoods for paper making. However, its low transformation frequency has prevented genetic engineering of this species with useful genes. We found the hypocotyl section with a shoot apex has the highest regeneration ability among another hypocotyl sections, and have developed an efficient Agrobacterium-mediated transformation method using these materials. We then introduced a salt tolerance gene, namely a bacterial choline oxidase gene (codA) with a GUS reporter gene, into E. globulus. The highest frequency of transgenic shoot regeneration from hypocotyls with shoot apex was 7.4% and the average frequency in four experiments was 4.0%, 12-fold higher than that from hypocotyls without shoot apex. Using about 10,000 explants, over 250 regenerated buds were confirmed as transformants by GUS analysis. Southern blot analysis of 100 elongated shoots confirmed successful generation of stable transformants. Accumulation of glycinebetaine was investigated in 44 selected transgenic lines, which showed 1- to 12-fold higher glycinebetaine levels than non-transgenic controls. Rooting of 16 transgenic lines was successful using a photoautotrophic method under enrichment with 1,000 ppm CO(2). The transgenic whole plantlets were transplanted into potting soil and grown normally in a growth room. They showed salt tolerance to 300 mM NaCl. The points of our system are using explants with shoot apex as materials, inhibiting the elongation of the apex on the selection medium, and regenerating transgenic buds from the side opposite to the apex. This approach may also solve transformation problems in other important plants.

Indexed as

Salt ToleranceAgrobacterium tumefaciensAlcohol OxidoreductasesBetaineCulture MediaEucalyptusGenetic VectorsHypocotylPlants, Genetically ModifiedPlant ShootsTransformation, GeneticAlcohol OxidoreductasesBetainecholine oxidaseCulture Media

Identifiers

PMID22009051
OpenAlexW2116109334

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.