Evidence map›Paper›PMID 34736392›Full record

ArticleBMC plant biology2021

Physiological and proteomic analyses revealed the response mechanisms of two different drought-resistant maize varieties.

Hongjie Li, Mei Yang, Chengfeng Zhao, Yifan Wang, Renhe Zhang

Open access · goldAbstract read
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 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
6.6field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

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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

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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

23 citing papers in PubMed, 48 citations in OpenAlex.

  1. EndangeredPlants (Basel, Switzerland) · 2026
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  15. Maize Transcription FactorInternational journal of molecular sciences · 2023
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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

5 authors at 1 institution in 1 country.

Hongjie LiCollege of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
Mei YangCollege of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
Chengfeng ZhaoCollege of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
Yifan WangCollege of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
Renhe ZhangCollege of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China. zhangrenhe@nwsuaf.edu.cn.
Northwest A&F University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDrought stress severely limits maize seedling growth and crop yield. Previous studies have elucidated the mechanisms by which maize acquires drought resistance and contends with water deficiency. However, the link between the physiological and molecular variations among maize cultivars are unknown. Here, physiological and proteomic analyses were conducted to compare the stress responses of two maize cultivars with contrasting drought stress tolerance.

resultsThe physiological analysis showed that the drought-tolerant SD609 maize variety maintains relatively high photochemical efficiency by enhancing its protective cyclic electron flow (CEF) mechanism and antioxidative enzymes activities. Proteomics analysis revealed that 198 and 102 proteins were differentially expressed in SD609 and the drought-sensitive SD902 cultivar, respectively. GO and KEGG enrichments indicated that SD609 upregulated proteins associated with photosynthesis, antioxidants/detoxifying enzymes, molecular chaperones and metabolic enzymes. Upregulation of the proteins related to PSII repair and photoprotection improved photochemical capacity in SD609 subjected to moderate drought stress. In SD902, however, only the molecular chaperones and sucrose synthesis pathways were induced and they failed to protect the impaired photosystem. Further analysis demonstrated that proteins related to the electron transport chain (ETC) and redox homeostasis as well as heat shock proteins (HSPs) may be important in protecting plants from drought stress.

conclusionsOur experiments explored the mechanism of drought tolerance and clarified the interconnections between the physiological and proteomic factors contributing to it. In summary, our findings aid in further understanding of the drought tolerance mechanisms in maize.

Indexed as

DroughtsGene Expression Regulation, PlantPhotosynthesisPlant ProteinsProteomicsSeedlingsZea maysPlant ProteinsDrought toleranceiTRAQMaizePhotosynthesis

Identifiers

PMID34736392
PMCPMC8567644
OpenAlexW3193258705

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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.