Melatonin Enhances Blast Disease Resistance via Inducing Rice Immunity and Inhibits the Growth of the Magnaporthe Oryzae.

ABSTRACT: Biopesticides are promising alternatives to chemical pesticides because of their low residual effects, high selectivity, and capacity for long-term disease control. Melatonin (N-acetyl-5-methoxytryptamine) may be an ideal candidate for biopesticide because it is widely present in the plant kingdom, involved in growth, development, and stress-induced responses in plants, and can inhibit the growth and propagation of some microbial pathogens. However, it remains largely unclear whether melatonin influences rice and the blast fungus Magnaporthe oryzae. Here, we demonstrate that melatonin enhances rice immunity and inhibits the growth of M. oryzae, resulting in resistance to rice blast disease. Melatonin acts in rice response to M. oryzae because biosynthesis-related genes are induced upon M.

SUBMITTER: Yang SJ 

PROVIDER: S-EPMC12276192 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature