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Functional Study of the NuA4 Histone Acetyltransferase Complex Subunit FgEaf7 in Fusarium graminearum
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Hang JIANG1, Liguo MA1, Kai QI1, Yueli ZHANG1, Bo ZHANG1, Guoping MA1, Feng ZENG2, Junshan QI1
Journal of Triticeae Crops | 2025, 45(4) : 536 - 546
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Journal of Triticeae Crops | 2025, 45(4): 536-546
• Disease and Pest Contro •
Functional Study of the NuA4 Histone Acetyltransferase Complex Subunit FgEaf7 in Fusarium graminearum
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Hang JIANG1, Liguo MA1, Kai QI1, Yueli ZHANG1, Bo ZHANG1, Guoping MA1, Feng ZENG2, Junshan QI1
Affiliations
  • 1.Institution of Plant Protection, Shandong Academy of Agricultural Sciences/Shandong Key Laboratory for Green Prevention and Control of Agricultural Pests, Jinan, Shandong 250100, China
  • 2.Qihe Agricultural and Rural Bureau, Qihe, Shandong 251100, China
Published: 2025-04-15 doi: 10.7606/j.issn.1009-1041.2025.04.13
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Fusarium head blight and Fusarium crown rot caused by Fusarium graminearum occurs severely in China, posing a threat to national food security. The NuA4 histone acetyltransferase complex regulates various developmental processes in fungi, but the functions of multiple subunits within the NuA4 complex in plant pathogenic fungi are currently unclear. To elucidate the function of Eaf7 subunit in plant pathogenic fungi, this study used F. graminearum as a model organism. Through knocking out the FgEAF7 gene, it was found that the growth rate of the Fgeaf7 mutant was significantly lower than that of the wild-type strain. However, the deletion of FgEAF7 gene did not affect conidiation, pathogenicity to wheat, and DON biosynthesis. Additionally, we found that the Fgeaf7 mutant showed decreased sensitivity to Congo red and SDS, indicating that the deletion of FgEAF7 gene affects cell wall development. Analysis of the FgEaf7 domain revealed a conserved Eaf7 domain within FgEaf7. Upon deletion of the Eaf7 domain, the FgEAF7△Eaf7 mutant exhibited similar defects to the Fgeaf7 mutant, suggesting that the Eaf7 domain is essential for the full function of FgEaf7. Transcriptomic analysis showed that over 1 800 genes were differentially expressed in the Fgeaf7 mutant, compared to the wild type, with several genes important for growth and development being downregulated. These findings indicate that FgEaf7 regulates various processes, such as vegetative growth and cell wall development in F.graminearum.

Fusarium head blight  /  F.graminearum  /  NuA4 complex  /  Gene expression
Hang JIANG, Liguo MA, Kai QI, Yueli ZHANG, Bo ZHANG, Guoping MA, Feng ZENG, Junshan QI. Functional Study of the NuA4 Histone Acetyltransferase Complex Subunit FgEaf7 in Fusarium graminearum[J]. Journal of Triticeae Crops, 2025 , 45 (4) : 536 -546 . DOI: 10.7606/j.issn.1009-1041.2025.04.13
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Year 2025 volume 45 Issue 4
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Article Info
doi: 10.7606/j.issn.1009-1041.2025.04.13
  • Receive Date：2024-06-03
  • Online Date：2026-09-11
  • Published：2025-04-15
Article Data
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History
  • Received：2024-06-03
  • Revised：2024-09-13
Funding
Affiliations
    1.Institution of Plant Protection, Shandong Academy of Agricultural Sciences/Shandong Key Laboratory for Green Prevention and Control of Agricultural Pests, Jinan, Shandong 250100, China
    2.Qihe Agricultural and Rural Bureau, Qihe, Shandong 251100, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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