Multi-Gene Identification and Pathogenicity Analysis of Sugarcane Pokkah Boeng Disease Pathogens in Yunnan, China

文献类型： 外文期刊

第一作者： Wang, Changmi

作者： Wang, Changmi;Yin, Jiong;Li, Yinhu;Li, Jie;Zhang, Rongyue;Wang, Xiaoyan;Shan, Hongli;Luo, Zhiming

作者机构：

关键词： Sugarcane pokkah boeng disease; Fusarium; Multi-gene identification; PCR; Pathogenicity analysis

期刊名称：TROPICAL PLANT BIOLOGY （ 影响因子：1.4； 五年影响因子：1.7 ）

ISSN： 1935-9756

年卷期： 2024 年 17 卷 4 期

页码：

收录情况： SCI

摘要： Pokkah boeng disease (PBD), a fungal disease of sugarcane, is caused by multiple species of Fusarium. To identify the pathogens causing PBD in Yunnan Province, China, we collected 87 leaf samples with typical PBD symptoms from the sugarcane-growing areas of Puer, Honghe, and Lincang, from which eight strains (FS1-FS8) were isolated and purified. The identities of the eight isolates were determined based on a combination of morphological observations and molecular analyses, using which we identified five Fusarium species as the causal agents of PBD in Yunnan, namely, F. incarnatum, F. andiyazi, F. sacchari, F. proliferatum, and F. verticillioides. Among these, F. incarnatum is a newly recorded species in Yunnan. Pathogenicity tests revealed that all five Fusarium species can infect sugarcane and cause PBD symptoms, with the severity of pathogenicity, ranked from strong to weak, being ordered as follows: F. proliferatum > F. andiyazi > F. incarnatum > F. verticillioides > F. sacchari. In this study, we identified the species and established the pathogenicity of the causal agents of PBD in Yunnan Province. Our findings will provide a scientific basis for the prevention and control of this disease.

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