COE2 — Arabidopsis thaliana

Summary

AT3G47450 (COE2, also known as NOA1, NOS1, and RIF1) in Arabidopsis thaliana encodes a GTPase with a NOA1/YqeH-like C-terminal domain and a G_CP domain. The gene is associated with nitric oxide metabolism and synthesis, and its product localizes to mitochondria. COE2 has been linked to numerous processes including stomatal movement and closure, leaf senescence and variegation, root hair development and waving, flowering time, pathogen defense, and temperature adaptation. Associations with agronomically relevant traits include photosynthetic rate and efficiency, chlorophyll content, quantum yield, drought and salt stress tolerance, freezing tolerance, cadmium stress resistance, shoot and root growth, seed dormancy, and disease tolerance. Studies of related genes in other species link the family to bacterial disease resistance and chilling tolerance.