Identification of Resistance of Maize Germplasm Resources to Disease

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Genetics, Genomics and Biotechnology".

Deadline for manuscript submissions: 30 November 2025 | Viewed by 594

Special Issue Editors


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Guest Editor
Institute of Crop Sciences, Chinese Academy of Agricultural Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing 100081, China
Interests: maize; germplasm resources; fungal disease; resistance identification; resistance genes; gene mapping; maize–pathogen interactions

E-Mail Website
Guest Editor
Institute of Cereal Crops, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
Interests: maize disease; maize–pathogen interactions; resistance genes; maize genome editing; maize transformation

Special Issue Information

Dear Colleagues,

Maize (Zea mays L.) is an important crop widely utilized for food, feed, industrial raw material, and energy. However, maize yield and quality are seriously threatened by numerous diseases caused by diverse pathogens. The major maize diseases include northern corn leaf blight (NCLB), southern corn leaf blight (SCLB), southern corn rust (SCR), grey leaf spot (GLS), Curvularia leaf spot, white spot, stalk rot, ear rot, head smut, common smut, banded leaf, and sheath blight, etc. These diseases, which can occur year-round or intermittently in different ecological zones, often lead to substantial economic losses. Developing maize cultivars with broad resistance to multiple diseases through breeding is the most effective approach for combating diseases. The identification of resistant maize germplasm and discovery of resistance genes are major steps toward this goal. Maize germplasm resources, including wild relatives, landrace, traditional varieties, and farmer’s varieties, encompass a vast array of genetic variations that could be served as the primary gene pool for enhancing maize resistance and genetic improvement.

The primary objective of this Special Issue is to publish innovative research, short communications, and comprehensive review articles focusing on, but not limited to: the precise characterization of maize germplasm for disease resistance via the application of phenomics, genomics, or molecular markers; the development and utilization of novel molecular markers for resistance breeding; or comparative studies on different molecular marker systems associated with maize diseases resistance to assess the genetic structure of maize germplasm or populations. Maize–pathogen interactions and resistance gene mining and cloning are also within the scope of this Special Issue.

Dr. Canxing Duan
Dr. Yanyong Cao
Guest Editors

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Keywords

  • maize germplasm
  • maize disease
  • resistance identification
  • resistance genes
  • molecular markers
  • maize–microbe interactions

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Published Papers (1 paper)

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Research

17 pages, 2810 KiB  
Article
The Involvement of Glycerophospholipids in Susceptibility of Maize to Gibberella Root Rot Revealed by Comparative Metabolomics and Mass Spectrometry Imaging Joint Analysis
by Qing Wang, Zi’an Zhao, Xin Li and Xiquan Gao
Plants 2025, 14(9), 1376; https://doi.org/10.3390/plants14091376 - 1 May 2025
Viewed by 265
Abstract
Gibberella root rot (GRR), caused by Fusarium graminearum, is one of the major threats to maize production. However, the mechanism underlying maize’s response to GRR is not fully understood. Multi-omics study incorporating metabolomics reveals insights into maize–pathogen interactions. Using metabolomics and mass [...] Read more.
Gibberella root rot (GRR), caused by Fusarium graminearum, is one of the major threats to maize production. However, the mechanism underlying maize’s response to GRR is not fully understood. Multi-omics study incorporating metabolomics reveals insights into maize–pathogen interactions. Using metabolomics and mass spectrometry imaging (MSI), maize inbred lines with GRR resistance (W438) and susceptibility (335M) were deployed to characterize specific metabolites associated with GRR. Analysis of significantly altered metabolites suggested that glycerophospholipid metabolism was highly associated with GRR resistance or susceptibility. Furthermore, the distinct accumulation of lysophosphatidylethanolamine (lysoPE) and lysophosphatidylcholine (lysoPC) from glycerophospholipid metabolism, along with the significant up-regulation of phospholipase (PLA) gene in the susceptible line, suggested that high levels of lysoPC and lysoPE contributed to GRR susceptibility. Meanwhile, genes encoding lysophospholipase (LPLA), the detoxification enzymes of lysoPC, were significantly activated in both genotypes. However, the significantly higher expression of LPLAs in the resistant line corresponded to a significant increase in the content of non-toxic sn-glycero-3-phosphocholine, whereas this increase was not observed in the susceptible line. MSI analysis revealed the involvement of other potential phospholipids in GRR susceptibility. Taken together, maintaining an appropriate concentration of lysophospholipids is crucial for their role in the signaling pathway that triggers GRR resistance without causing damage to maize roots. Full article
(This article belongs to the Special Issue Identification of Resistance of Maize Germplasm Resources to Disease)
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