Evidence map›Paper›PMID 22990376›Full record

ArticleTransgenic research2013

Improvement of vitamin E quality and quantity in tobacco and lettuce by chloroplast genetic engineering.

Yukinori Yabuta, Hiroyuki Tanaka, Sahoko Yoshimura, Akiko Suzuki, Masahiro Tamoi, Takanori Maruta, Shigeru Shigeoka

Abstract read
PubMed Publisher
In one paragraph

Article in Transgenic research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
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

17 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. ChloroMitoCU: Codon patterns across organelle genomes for functional genomics and evolutionary applications.DNA research : an international journal for rapid publication of reports on genes and genomes · 2017
    Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Molecular cloning and heterologous expression analysis ofMolecular breeding : new strategies in plant improvement
    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

7 authors.

Yukinori YabutaSchool of Agricultural, Biological, and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-minami, Tottori, 680-8550, Japan.
Hiroyuki Tanaka
Sahoko Yoshimura
Akiko Suzuki
Masahiro Tamoi
Takanori Maruta
Shigeru Shigeoka

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vitamin E (tocopherol: Toc) is an important lipid-soluble antioxidant synthesized in chloroplasts. Among the 8 isoforms of vitamin E, α-Toc has the highest activity in humans. To generate transgenic plants with enhanced vitamin E activity, we applied a chloroplast transformation technique. Three types of the transplastomic tobacco plants (pTTC, pTTMT and pTTC-TMT) carrying the Toc cyclase (TC) or γ-Toc methyltransferase (γ-TMT) gene and the TC plus γ-TMT genes as an operon in the plastid genome, respectively, were generated. There was a significant increase in total levels of Toc due to an increase in γ-Toc in the pTTC plants. Compared to the wild-type plants, Toc composition was altered in the pTTMT plants. In the pTTC-TMT plants, total Toc levels increased and α-Toc was a major Toc isoform. Furthermore, to use chloroplast transformation to produce α-Toc-rich vegetable, TC-overexpressing transplastomic lettuce plants (pLTC) were generated. Total Toc levels and vitamin E activity increased in the pLTC plants compared with the wild-type lettuce plants. These findings indicated that chloroplast genetic engineering is useful to improve vitamin E quality and quantity in plants.

Indexed as

ChloroplastsGenetic EngineeringHumansLactucaNicotianaPlants, Genetically ModifiedVitamin EVitamin E

Identifiers

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.