Evidence map›Paper›PMID 17434988›Full record

ArticlePlant physiology2007

Genetic dissection of histidine biosynthesis in Arabidopsis.

Rosanna Muralla, Colleen Sweeney, Asya Stepansky, Thomas Leustek, David Meinke

Open access · bronzeAbstract read
In one paragraph

Article in Plant physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
6.9field-weighted citation impact, top 4% 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

30 citing papers in PubMed, 81 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Selection of a histidine auxotrophicPlant biotechnology (Tokyo, Japan) · 2022
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. The plastidial pentose phosphate pathway is essential for postglobular embryo development inProceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  13. Hybrid incompatibility caused by an epiallele.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  14. Epigenetic contribution to diversification.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  15. Article
  16. Article
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  18. Article
  19. Article
  20. 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

5 authors at 2 institutions in 1 country.

Rosanna MurallaDepartment of Botany, Oklahoma State University, Stillwater, Oklahoma 74078, USA.
Colleen Sweeney
Asya Stepansky
Thomas Leustek
David Meinke
Oklahoma State University · USRutgers, The State University of New Jersey · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The biosynthesis of histidine (His) in microorganisms, long studied through the isolation and characterization of auxotrophic mutants, has emerged as a paradigm for the regulation of metabolism and gene expression. Much less is known about His biosynthesis in flowering plants. One limiting factor has been the absence of large collections of informative auxotrophs. We describe here the results of a systematic screen for His auxotrophs of Arabidopsis (Arabidopsis thaliana). Ten insertion mutants disrupted in four different biosynthetic genes (HISN2, HISN3, HISN4, HISN6A) were identified through a combination of forward and reverse genetics and were shown to exhibit an embryo-defective phenotype that could be rescued by watering heterozygous plants with His. Male transmission of the mutant allele was in several cases reduced. Knockouts of two redundant genes (HISN1B and HISN5A) had no visible phenotype. Another mutant blocked in the final step of His biosynthesis (hisn8) and a double mutant altered in the redundant first step of the pathway (hisn1a hisn1b) exhibited a combination of gametophytic and embryonic lethality in heterozygotes. Homozygous mutant seedlings and callus tissue produced from rescued seeds appeared normal when grown in the presence of His but typically senesced after continued growth in the absence of His. These knockout mutants document the importance of His biosynthesis for plant growth and development, provide valuable insights into amino acid transport and source-sink relationships during seed development, and represent a significant addition to the limited collection of well-characterized auxotrophs in flowering plants.

Indexed as

AllelesArabidopsisBiosynthetic PathwaysDNA, BacterialGenes, PlantHeterozygoteHistidineHomozygoteInheritance PatternsMutagenesis, InsertionalPhenotypePlants, Genetically ModifiedSeedsDNA, BacterialHistidineT-DNA

Identifiers

PMID17434988
PMCPMC1914156
OpenAlexW2018187931

What OpenQuestion holds

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Registered trials

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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.