烟草靶斑病病原菌与烟草互作分子机制及防治技术研究进展

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中图分类号：S435.7 文献标识码：A文章编号：2097-1354（2026）01-0030-11

Abstract： In recent years，tobacco target spot disease has occurred in a wide range of areas and caused huge losses to tobacco leaves. This article outlines the distribution，damage，pathogen characteristics and occurrence regularity of tobacco target spot disease，summarizes the pathogenic mechanism of the pathogen causing tobacco target spot disease，the disease-resistant pathways triggered by tobacco's resistance to the pathogen infection，and the progress in the prevention and control of tobacco target spot disease. It also puts forward prospects for the process of tobacco disease-resistant breeding through molecular-assisted breeding technologies such as gene editing，aiming to provide valuable references and insights for controlling the spread and damage of this disease in tobacco-growing areas of China.

Key words： tobacco target spot disease;Rhizoctonia solani AG3； pathogenic mechanism； dis-ease resistance mechanism； tobacco； prevention and control technology

1烟草靶斑病的发生与危害

1.1 发生与分布

烟草靶斑病于1984年首次在巴西烟草（Nicotiana tabacumL.）上发现并报道，此后逐步在哥斯达黎加、美国、德国等多个国家扩散传播[1-3]。（剩余16702字）