SgPAL1/2 confers anthracnose resistance in Stylosanthes guianensis by modulating lignin content and monomer ratios.

ABSTRACT:

Background

Anthracnose, caused by the hemibiotrophic fungus Colletotrichum gloeosporioides, is one of the most destructive diseases affecting leguminous forage crops worldwide. Due to its broad host range and ability to cause severe yield losses, identifying genetic resistance is crucial for sustainable disease management. Stylosanthes guianensis, a diploid, self-pollinating tropical legume widely cultivated as forage, cover crop, and green manure, exhibits natural variation in anthracnose resistance, making it an ideal model for investigating host resistance genes.

Results

In this study, we evaluated the resistance of 28 S. guianensis accessions to C. gloeosporioides, revealing a significant positive correlation between phenylalanine ammonia-lyase (PAL) activity and anthrac

SUBMITTER: Gao M 

PROVIDER: S-EPMC12729147 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature