Species Identification and Fungicide Sensitivity of Fusarium spp. Causing Peanut Root Rot in Henan, China
文献类型： 外文期刊
作者： Li, Min 1 ; Chen, Liting 1 ; Wang, Qinqin 1 ; He, Leiming 1 ; Duan, Yun 4 ; Mao, Xuewei 1 ; Zhou, Lin 1 ;
作者机构： 1.Henan Agr Univ, Coll Plant Protect, 218 Pingan Ave, Zhengzhou 450046, Peoples R China
2.Henan Agr Univ, Henan Key Lab Creat & Applicat New Pesticide, Zhengzhou 450046, Peoples R China
3.Henan Agr Univ, Henan Res Ctr Green Pesticide Engn & Technol, Zhengzhou 450046, Peoples R China
4.Henan Acad Agr Sci, Inst Plant Protect Res, Zhengzhou 450002, Peoples R China
关键词： peanut root rot; pathogen identification; Fusarium species distribution; pathogenicity; fungicide sensitivity
期刊名称：JOURNAL OF FUNGI （ 影响因子：4.0； 五年影响因子：4.5 ）
ISSN：
年卷期： 2025 年 11 卷 6 期
页码：
收录情况： SCI
摘要： Peanut Root Rot (PRR) is a devastating disease that significantly limits peanut production worldwide. Although PRR has been frequently reported in Henan Province of China, the predominant Fusarium species and their sensitivity to different fungicides remain unclear. Between 2021 and 2023, we surveyed 81 peanut fields across 17 cities in Henan Province, China, to assess PRR prevalence and Fusarium species distribution. A total of 1131 Fusarium isolates were identified based on the morphological characters and phylogenetic analyses and classified into 11 recognized Fusarium species: F. solani (56.06%), F. oxysporum (20.87%), F. neocosmosporiellum (13.62%), F. proliferatum (4.69%), F. acuminatum (1.33%), F. commune (1.15%), F. graminearum (1.06%), F. pseudograminearum (0.35%), F. ipomoeae (0.35%), F. lacertarum (0.26%), and F. armeniacum (0.26%). Pathogenicity assessments showed that all 11 Fusarium species were capable of causing PRR, with F. solani exhibiting the highest isolation frequency and widespread distribution in all areas. Furthermore, the four Fusarium species (F. solani, F. oxysporum, F. neocosmosporiellum, and F. proliferatum) were highly sensitive to the six fungicides, including prochloraz (EC50 values of 0.02 +/- 0.00 similar to 0.06 +/- 0.01 mg/L), pydiflumetofen (EC50 values of 0.31 +/- 0.07 similar to 0.67 +/- 0.06 mg/L), tetramycin (EC50 values of 0.11 +/- 0.02 similar to 0.58 +/- 0.08 mg/L), tebuconazole (EC50 values of 0.26 +/- 0.07 similar to 0.65 +/- 0.10 mg/L), prothioconazole (EC50 values of 1.14 +/- 0.16 similar to 3.15 +/- 0.81 mg/L), and difenoconazole (EC50 values of 0.62 +/- 0.12 similar to 3.58 +/- 0.76 mg/L). This comprehensive study is the first systematic documentation on the prevalence, virulence, and fungicide sensitivity of PRR pathogens in Henan Province. The findings of the current study will provide a theoretical basis for the effective management of peanut root rot in Henan, China.
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