ACT7 — Pisum sativum

Summary

PsACT7 (ACT7) on chromosome 5LG3 encodes actin-7, a structural constituent of the cytoskeleton with ATP binding and hydrolase activity. In garden pea, this gene is associated with actin polymerization or depolymerization, cytoskeleton organization, seed germination, root epidermal cell differentiation, response to wounding, and circadian rhythm. The encoded protein localizes to the actin cytoskeleton, chloroplast envelope, plant-type cell wall, nucleolus, plasmodesma, and Golgi complex. PsACT7 is associated with root growth and development, root hair elongation and positioning, seedling growth, germination, leaf development, cell proliferation, polar auxin transport, disease resistance, salt stress adaptation, callus formation, nitrate uptake and assimilation, and leaf composition traits. Studies of related genes in other species connect the family to actin filament organization, chloroplast clustering, organ size, calcium signaling, and phenotypes including dwarfism, reduced fertility, and aberrant nuclear positioning.