Identification of major fungal diseases in sorghum and screening of broad-spectrum resistance germplasms in Southwest China
文献类型： 外文期刊
作者： Yu, Zhi-Fan 1 ; Kami, Yam Bahadur 1 ; Xia, Jing-Yang 1 ; Chang, Xin-Ya 1 ; Li, Jin-Yang 1 ; Han, Jun-Ru 1 ; Lin, Jun 2 ; Sun, Yuan-Tao 3 ; Wang, Li-Cheng 4 ; Ni, Xian-Lin 3 ; Wang, Wen-Ming 1 ; Zhang, Ji-Wei 1 ;
作者机构： 1.Sichuan Agr Univ, State Key Lab Crop Gene Explorat & Utilizat Southw, Chengdu 611130, Peoples R China
2.Plant Protect & Quarantine Stn Luzhou, Luzhou 646000, Peoples R China
3.Sichuan Acad Agr Sci, Rice & Sorghum Inst, Deyang 618000, Peoples R China
4.Sichuan Univ Sci & Engn, Coll Bioengn, Engn Technol Res Ctr Liquor Making Grains, Yibin 644000, Peoples R China
关键词： Sorghum; Alternaria alternata; Colletotrichum sublineola; Fusarium thapsinum; Exserohilum turcicum; Resistant germplasms
期刊名称：PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY （ 影响因子：3.3； 五年影响因子：3.2 ）
ISSN： 0885-5765
年卷期： 2025 年 138 卷
页码：
收录情况： SCI
摘要： Sorghum is a key raw material for traditional Chinese Baijiu brewing. However, its productivity and grain quality are constantly threatened by fungal diseases in the high-temperature, high-humidity environments of Southwest China. Over a two-year field investigation, we identified 13 distinct diseases and isolated nine pathogenic fungi for further laboratory characterization. Among these fungal diseases, leaf spot and anthracnose, caused by Alternaria alternata and Colletotrichum sublineola, respectively, were the most prevalent and destructive. Additionally, Fusarium stalk rot and leaf blight, caused by Fusarium thapsinum and Exserohilum turcicum, respectively, were observed in some sorghum-producing regions and displayed an outbreak tendency. Through multi-environment resistance evaluations on 50 core sorghum germplasms, we selected six accessions (B068, B193, B284, B289, B300 and B316) that consistently exhibited broad-spectrum resistance against all major pathogens. In contrast, we found that most glutinous varieties were susceptible to the four major pathogens, including the widely cultivated Hongyingzi, Guojiaohong 1, Langnuo 19, and Yinuohong 4. These findings provide crucial genetic resources for development disease-resistant glutinous sorghum varieties in Southern China.
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