Evidence map›Paper›PMID 19337748›Full record

ArticlePlanta2009

Influence of light on ascorbate formation and metabolism in apple fruits.

Mingjun Li, Fengwang Ma, Peifen Shang, Min Zhang, Changming Hou, Dong Liang

Abstract read
PubMed Publisher
In one paragraph

Article in Planta, 2009. 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
8.4field-weighted citation impact, top 3% 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

17 citing papers in PubMed, 85 citations in OpenAlex.

  1. Article
  2. Article
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  5. Article
  6. Ascorbic Acid-The Little-Known Antioxidant in Woody Plants.Antioxidants (Basel, Switzerland) · 2019
    Review
  7. Vitamin C in Plants: From Functions to Biofortification.Antioxidants (Basel, Switzerland) · 2019
    Review
  8. Article
  9. Article
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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

6 authors at 2 institutions in 1 country.

Mingjun LiCollege of Horticulture, Northwest A&F University, 712100, Yangling, Shaanxi, China. limingjun@nwsuaf.edu.cn
Fengwang Ma
Peifen Shang
Min Zhang
Changming Hou
Dong Liang
Northwest A&F University · CNNorth West Agriculture and Forestry University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To further understand the regulatory mechanism of light on the formation of ascorbic acid (AsA) in the sink organs of plants, a systematical investigation on AsA levels, activities of two key biosynthsis enzymes and their mRNA expression as well as the recycling was performed in the fruits of apple (Malus domestica Borkh), under different levels of shade. After the whole trees were shaded with the sun-light about 50-55% for 20 days, AsA levels were significantly decreased in fruit peel, flesh and leaves, while mRNA expression levels and activities of L-galactose dehydrogenase (L-GalDH, EC 1.1.1.117) and L-galactono-1,4-lactone dehydrogenase (L-GalLDH, EC 1.3.2.3) as well as activities of recycling enzymes was clearly declined in the leaf and peel but not in the flesh. By shading fruits only for 20 days, AsA levels, relative mRNA levels and activities of L-GalDH and L-GalLDH as well as activities of recycling enzymes all showed obvious decrease in the peel, but not in the flesh. However, their levels in the peel were markedly increased after the full shade was removed and re-exposed these fruits on natural light for 5 days. It is concluded that light affects AsA biosynthesis and recycling in the peel and leaf, but did not in the fresh. Results also suggest that apple fruit is potential to biosynthesize AsA via the L-galactose pathway, and AsA content in the fruits may depend partly on levels of AsA or other photochemistry controlled by light in the leaves.

Indexed as

LightAscorbic AcidBlotting, NorthernFruitGalactose DehydrogenasesGene Expression Regulation, EnzymologicGene Expression Regulation, PlantGlutathioneMalusOxidoreductases Acting on CH-CH Group DonorsPlant LeavesPlant ProteinsReverse Transcriptase Polymerase Chain ReactionSpectrophotometryAscorbic Acidgalactonolactone dehydrogenasegalactose dehydrogenaseGalactose DehydrogenasesGlutathioneOxidoreductases Acting on CH-CH Group DonorsPlant Proteins

Identifiers

PMID19337748
OpenAlexW1992808318

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.