Evidence map›Paper›PMID 11788758›Full record

ArticlePlant physiology2002

Distinct but conserved functions for two chloroplastic NADP-malic enzyme isoforms in C3 and C4 Flaveria species.

Lien B Lai, Lin Wang, Timothy M Nelson

Open access · bronzeAbstract read
In one paragraph

Article in Plant physiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

22 citing papers in PubMed, 55 citations in OpenAlex.

  1. Article
  2. Article
  3. ChloroplasticPlants (Basel, Switzerland) · 2021
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. The Roles of Organic Acids in C4 Photosynthesis.Frontiers in plant science · 2016
    Review
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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

3 authors at 1 institution in 1 country.

Lien B LaiDepartment of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520-8104, USA.
Lin Wang
Timothy M Nelson
Yale University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the most common C4 pathway for carbon fixation, an NADP-malic enzyme (NADP-ME) decarboxylates malate in the chloroplasts of bundle sheath cells. Isoforms of plastidic NADP-ME are encoded by two genes in all species of Flaveria, including C3, C3-C4 intermediate, and C4 types. However, only one of these genes, ChlMe1, encodes the enzyme that functions in the C4 pathway. We compared the expression patterns of the ChlMe1 and ChlMe2 genes in developing leaves of Flaveria pringlei (C3) and Flaveria trinervia (C4) and in transgenic Flaveria bidentis (C4). ChlMe1 expression in C4 species increases in leaves with high C4 pathway activity. In the C3 species F. pringlei, ChlMe1 expression is transient and limited to early leaf development. In contrast, ChlMe2 is expressed in C3 and C4 species concurrent with stages in chloroplast biogenesis. Because previous studies suggest that NADP-ME activities generally reflect the level of its mRNA abundance, we discuss possible roles of ChlMe1 and ChlMe2 based on these expression patterns.

Indexed as

AsteraceaeBase SequenceChloroplastsCloning, MolecularGene Expression Regulation, EnzymologicGene Expression Regulation, PlantIsoenzymesLightMalate DehydrogenaseMalatesMolecular Sequence DataPhotosynthesisPhotosynthetic Reaction Center Complex ProteinsPlant LeavesSequence AlignmentIsoenzymesMalate Dehydrogenasemalate dehydrogenase (oxaloacetate-decarboxylating) (NADP+)Malatesmalic acidPhotosynthetic Reaction Center Complex Proteins

Identifiers

PMID11788758
PMCPMC148954
OpenAlexW2150512924

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.