Heterologous Overexpression of <i>Magnaporthe oryzae</i> Effector <i>PWL2</i> Enhances Rice Blast Resistance via SA-Mediated and <i>PWL2</i>-Derived siRNA Defense.

ABSTRACT: Fungal effectors play an important role in plant immunity. The Magnaporthe oryzae effector PWL2 plays a significant role in rice blast disease caused by this fungus. However, the function of PWL2 in rice immunity is not fully understood. In this study, transgenic rice lines overexpressing PWL2 showed resistance to rice blast. Subcellular localization showed that PWL2-GFP fusion protein is localized on the plasma membrane and cytoplasm. Salicylic acid (SA) induces rice resistance to M. oryzae. Notably, the expression of the NPR1 gene exhibited a rhythmic pattern during the early stages of M. oryzae infection in the transgenic rice lines. However, during later stages of infection, transgenic plants showed reduced levels of the NPR1, WRKY45,

SUBMITTER: Sun X 

PROVIDER: S-EPMC12608615 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature