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Fungal community dynamics associated with the outbreaks of sugarcane root rot disease

文献类型： 外文期刊

作者： Ren, Qingxiao 1 ; Khan, Abdullah 1 ; Zhang, Jinxu 1 ; Bao, Yixue 1 ; Khan, Muhammad Tahir 2 ; Wang, Jihua 3 ; Xu, Shiqiang 3 ; Zhang, Muqing 1 ; Connors, Bernadette J. 1 ;

作者机构： 1.Guangxi Univ, State Key Lab Conservat & Utilizat Subtrop Agrobio, Guangxi Key Lab Sugarcane Biol, Nanning, Peoples R China

2.Natl Inst Biotechnol & Genet Engn NIBGE, Faisalabad, Pakistan

3.Guangdong Acad Agr Sci, Crop Res Inst, Guangzhou, Peoples R China

关键词： sugarcane; root rot disease; Fusarium; antagonistic fungi; biocontrol

期刊名称：MICROBIOLOGY SPECTRUM （ 影响因子：3.7； 五年影响因子：5.9 ）

ISSN： 2165-0497

年卷期： 2024 年 12 卷 2 期

页码：

收录情况： SCI

摘要： Sugarcane is a critical sugar and bioenergy crop in China. However, numerous factors, including root rot disease, hamper its yield. Root rot disease is a severe agricultural issue, reducing yield and threatening sustainable crop production. The current study aimed to explore the fungal community structure, identify and characterize the primary pathogen for sugarcane root rot in Guangzhou, China. Eighty-nine samples of sugarcane root, stalk, rhizosphere soil, and irrigation water were collected from five sites in Guangzhou, China. Subsequently, 276 fungal strains were isolated to identify the primary pathogens. The five most common genera identified were Penicillium, Fusarium, Gongronella, Trichoderma, and Cladosporium. Fusarium was more prevalent in the infected soil samples than in healthy ones. Pathogenic assays of the strains revealed that the strain GX4-46 caused 80% of the disease. The strain was confirmed as Fusarium commune through phylogenetic and genome sequence analysis. Rhizosphere soil samples from different regional crops were collected to better understand the fungal community structure and the primary pathogen. We observed a significant presence of Fusarium in irrigation water, indicating that the root rot disease could originate from the irrigation water and then spread as a soil-borne disease. This research is pioneering and one of the most comprehensive investigations on the occurrence and prevalence of sugarcane root rot disease. This study will serve as a reference for expanding the sugarcane industry and a foundation for further exploration and control of root rot.

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