Chinese Bulletin of Botany

Previous Articles     Next Articles

Research Progress on Gray Leaf Spot of Maize

Xuantao WenLin YangJunpin YangJie ChenYan LiXiao Zhang2,Shibin Gao2,Wenzhu He2, 2   

  • Received:2025-07-25 Revised:2025-11-06 Online:2025-12-16 Published:2025-12-16

Abstract: Gray leaf spot (GLS) of maize, caused by Cercospora fungi, is a severe foliar disease prevalent in major maize-producing regions of China, such as the southwest and northeast, posing a significant threat to the nation's food security. Maize resistance to GLS is a complex quantitative trait, controlled by multiple genes and highly susceptible to environmental influences. This paper briefly introduces the distribution, transmission pathways, and chemical control strategies for GLS in China, with a primary focus on summarizing the current research status concerning quantitative trait loci (QTL), resistance genes, and underlying resistance mechanisms associated with this disease. The aim is to provide a theoretical foundation for in-depth investigations into the resistance mechanisms of maize GLS and to facilitate the breeding of GLS-resistant maize varieties.

Key words: Maize, Gray leaf spot, Quantitative trait locus, Molecular mechanism