PR1 — Fusarium graminearum PH-1

Summary

FGRAMPH1_01G08909, designated PR1 on chromosome 2 of Fusarium graminearum PH-1, encodes a serine-type endopeptidase belonging to the peptidase S8 subtilisin-like family and also binds metal ions. The gene is associated with a broad set of biological processes, including defense response, systemic acquired resistance, induced systemic resistance, innate immunity, metabolic burst, detoxification, proteolysis, nitrogen fixation, photosynthesis, embryogenesis, seed and spore germination, fermentation, and NO storage. Its product is localized extracellularly. PR1 is linked to traits such as chlorophyll content, root length, and germination rate. Studies of related genes in other species connect the family to cuticle degradation and unaffected pathogenicity, and associations with fusarium ear blight and drought tolerance, though these are not established for this specific gene.