PR1 — Oryza sativa Japonica

Summary

OsPR1 (OS07G0124900) encodes a protein containing a CAP (cysteine-rich secretory protein, antigen 5, and pathogenesis-related 1) domain, a member of the CRISP-related family, and is annotated with cytokine activity and protein binding. In rice, OsPR1 is associated with defense responses, including systemic acquired resistance, induced systemic resistance, and responses to jasmonic acid, salicylic acid, and ethylene. It has been linked to seedling phenotypes, phytohormone regulation, and responses to herbivores, toxic substances, and cadmium. The gene is also associated with agronomic traits such as grain yield, grain size, plant height, chlorophyll content, and anthocyanin content. OsPR1 localizes to the secretory vesicle, vacuole, plant-type cell wall, and extracellular space. Studies of related genes in other species link the family to pathogen resistance, systemic immunity, and abiotic stress tolerance.