ARF — Nicotiana attenuata

Summary

A4A49_63657 (ARF) in coyote tobacco (Nicotiana attenuata) encodes a small GTPase of the Arf1-5-like family, with GTPase activity, GTP binding, G protein activity, phospholipase activator activity and metal binding. It is associated with auxin transport and signaling, nicotine and alkaloid anabolism, anthocyanin anabolism, vesicle and intracellular protein transport, nuclear import, chloroplast movement, stomatal movement, pollen germination, embryogenesis, lateral root development and formation, cell development, sexual reproduction, and homeostasis. The gene is linked to ethylene sensitivity. Localisation evidence places the product in the Golgi complex and cytoplasm. Studies of related genes in other species connect the family to traits including leaf relative water content, leaf angle, fruit firmness, starch and sugar content, stem elongation, fruit size, leaf shape, stomatal resistance, organ identity, root length, chlorophyll content, and plant height.