Evidence map›Paper›PMID 34686132›Full record

ArticleBMC plant biology2021

Analyses of the photosynthetic characteristics, chloroplast ultrastructure, and transcriptome of apple (Malus domestica) grown under red and blue lights.

Zhiqiang Li, Qiaojing Chen, Youyan Xin, Zhuoxin Mei, Aiyun Gao, Wenjun Liu, Lei Yu, Xuesen Chen, Zijing Chen, Nan Wang

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC plant biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
6.0field-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

14 citing papers in PubMed, 41 citations in OpenAlex.

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  4. Transcriptomic Insights into Anthocyanin Biosynthesis inInternational journal of molecular sciences · 2025
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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

10 authors at 1 institution in 1 country.

Zhiqiang Li *State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, 271018, Tai'an, Shandong, China.
Qiaojing Chen *State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, 271018, Tai'an, Shandong, China.
Youyan XinState Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, 271018, Tai'an, Shandong, China.
Zhuoxin MeiState Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, 271018, Tai'an, Shandong, China.
Aiyun GaoState Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, 271018, Tai'an, Shandong, China.
Wenjun LiuState Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, 271018, Tai'an, Shandong, China.
Lei YuState Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, 271018, Tai'an, Shandong, China.
Xuesen ChenState Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, 271018, Tai'an, Shandong, China.
Zijing ChenState Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, 271018, Tai'an, Shandong, China. chenzijing@sdau.edu.cn.
Nan WangState Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, 271018, Tai'an, Shandong, China. nanwangjingzi@163.com.
Shandong Agricultural University · CN

Funding

Agricultural Variety Improvement Project of Shandong Province 2019LZGC007National Key Research and Development Program of China 2019YFD1000101
6 · The paper itself

Abstract

backgroundLight quality significantly affects plant growth and development, photosynthesis, and carbon and nitrogen metabolism. Apple (Malus domestica Borkh.) is a widely cultivated and economically important fruit crop worldwide. However, there are still few studies on the effects of different light qualities on the growth and development of apple seedlings.

resultsIn this study, we explored the effects of blue and red light treatments on the growth and development, photosynthetic characteristics, leaf chloroplast ultrastructure, and carbon and nitrogen metabolism of apple seedlings. Blue light significantly inhibited apple plant growth and leaf extension, but it promoted the development of leaf tissue structures and chloroplasts and positively affected leaf stomatal conductance, the transpiration rate, and photosynthetic efficiency. The red light treatment promoted apple plant growth and root development, but it resulted in loosely organized leaf palisade tissues and low chlorophyll contents. The blue and red light treatments enhanced the accumulation of ammonium nitrogen in apple seedlings. Moreover, the blue light treatment significantly promoted nitrogen metabolism. Additionally, an RNA-seq analysis revealed that both blue light and red light can significantly up-regulate the expression of genes related to carbon and nitrogen metabolism. Blue light can also promote amino acid synthesis and flavonoid metabolism, whereas red light can induce plant hormone signal transduction. The expression of a gene encoding a bHLH transcription factor (MYC2-like) was significantly up-regulated in response to blue light, implying it may be important for blue light-mediated plant development.

conclusionsConsidered together, blue and red light have important effects on apple growth, carbon and nitrogen metabolism. These findings may be useful for determining the ideal light conditions for apple cultivation to maximize fruit yield and quality.

Indexed as

TranscriptomeAdaptation, OcularChloroplastsCrops, AgriculturalMalusPhotosynthesisPlant DevelopmentAppleCarbon and nitrogen metabolismGrowth and developmentRed and blue light

Identifiers

PMID34686132
PMCPMC8539889
OpenAlexW3207631718

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.