Molecular Mechanisms of Interactions Between Pathogenic Fungi and Host Plants

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Protection and Biotic Interactions".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 872

Special Issue Editors

State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Interests: interaction between rice blast fungus and rice; pathogenesis of rice blast fungus; rice blast resistance

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Guest Editor
State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Interests: effector; magnaporthe oryzae–rice interaction
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Special Issue Information

Dear Colleagues,

Plant diseases caused by pathogenic fungi pose devastating threats to global crop production and food security. Current management strategies, such as deploying resistant cultivars or chemical treatments, often provide only short-term control due to the rapid evolution of pathogens and the complexity of agricultural ecosystems.

Understanding the molecular interaction mechanisms between pathogenic fungi and their host plants is essential for developing sustainable control strategies and identifying novel targets for pesticide development. This Special Issue of Plants will highlight advances in fungal effector biology, host immune evasion tactics, and plant defense responses across various plant–fungus pathosystems.

Dr. Ya Li
Dr. Jiexiong Hu
Guest Editors

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Keywords

  • plant fungal diseases
  • pathogenic fungi
  • fungal effector
  • host resistance
  • plant immunity
  • plant–pathogen interactions

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Published Papers (1 paper)

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Research

21 pages, 3912 KB  
Article
The Global Transcription Factor FvCon7 Plays a Role in the Morphology, FB1 Toxin Production, and Pathogenesis of Fusarium verticillioides
by Gaolong Wen, Xiange Lu, Jiayan Liang, Yi Liu, Xudong Zhang, Guodong Lu, Zonghua Wang and Wenying Yu
Plants 2025, 14(17), 2725; https://doi.org/10.3390/plants14172725 - 1 Sep 2025
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Abstract
Fusarium verticillioides, an important global pathogenic fungus, compromises crop quality and yield by infecting maize, sugarcane, and some Solanaceae, endangering food security through contaminated grains and cereals with the fumonisin B1 (FB1) toxin. While Con7 has been reported as a transcription factor [...] Read more.
Fusarium verticillioides, an important global pathogenic fungus, compromises crop quality and yield by infecting maize, sugarcane, and some Solanaceae, endangering food security through contaminated grains and cereals with the fumonisin B1 (FB1) toxin. While Con7 has been reported as a transcription factor involved in the sporulation and pathogenicity of some pathogenic fungi, the function of FvCon7 and its regulatory genes in F. verticillioides remains uncharacterized. Gene deletion mutants of ΔFvcon7 were constructed through homologous recombination, which exhibited defects in vegetative growth, survival, sporophore development, conidiation, conidial germination, and carbon metabolism. Carbon metabolism defects led to a significant accumulation of glycogen granules in hypha and lipid bodies in conidia. Additionally, ΔFvcon7 displayed impaired cell wall structure and integrity, along with an altered expression of genes encoding cell wall-degrading enzymes (such as chitinase), as detected by qRT-PCR. Moreover, Fvcon7 also plays a role in the pathogenicity of maize and sugarcane through different splicing, defective conidia, reduced survival viability, differential expression of secreted proteins, and deficiencies in antioxidant stress capacity. Furthermore, using yeast one-hybrid (Y1H) assays, FvCon7 was found for the first time to directly regulate the expression of FvFUMs by binding to the CCAAT box within the promoters of six key FvFUMs, thereby affecting FB1 production. Overall, FvCon7 functions as a global transcription factor regulating multiple phenotypes. This study provides a theoretical basis for elucidating the mechanism of transcription factor FvCon7 regulating toxin production and pathogenesis in F. verticillioides. Full article
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