数字农科院2.0

Fusarium commune: A novel fungal endophyte against fungal pathogen Fusarium graminearum

文献类型： 外文期刊

作者： Tao Wan;Clement Nzabanita;Xueyuan Sheng;Chengke Yuan;Shuangchao Wang;Lihua Guo

作者机构：

关键词： Biocontrol agent;Fusarium commune;Fusarium graminearum;Fusarium head blight;Wheat

期刊名称： Physiological and Molecular Plant Pathology

ISSN： 0885-5765

年卷期： 2025 年 141 卷

页码：

收录情况： SCIE（2025版）

摘要： Fusarium head blight (FHB) is a devastating disease of wheat resulting from the invasion of Fusarium graminearum. As resistant varieties of wheat are rarely available, the agriculture sector depends upon chemical fungicides to manage FHB, which are harmful to humans and animals. However, biocontrol offers a promising and environmentally friendly approach that aligns with sustainable and green farming practices. In the present work, a fungal endophyte, Fusarium commune strain G3-29 was isolated from a symptomless root of wheat and characterized by morphology and phylogeny of the rDNA internal transcribed spacer (ITS), RNA polymerase second largest subunit region (RPB2), and translation elongation factor (tef). In vitro dual culture and culture filtrate assays of the endophyte strain G3-29 against fungal pathogens, namely F. graminearum strain PH-1, F. pseudograminearum strain H-5, Sclerotinia sclerotiorum strain D-4 and Colletotrichum gloeosporioides strain Y-3 significantly showed antifungal activity by inhibiting mycelial growth. In field conditions, applying spore suspensions of F. commune strain G3-29 together with conidial suspensions of F. graminearum to wheat spikes led to a noticeable reduction in FHB. In addition, wheat seeds treated with spore suspensions of strain G3-29 before sowing exhibited enhanced wheat growth parameters compared to the control plants under field conditions. These results highlight that fungal endophyte F. commune strain G3-29 could be a promising biocontrol agent against F. graminearum, causing FHB and a growth-promoting fungus in wheat.

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