ACT4 — Phaseolus vulgaris

Summary

PHAVU_011G064500, designated ACT4 (also known as PvACT4 or ACT12) in French bean (Phaseolus vulgaris) on chromosome 11, encodes an actin protein that is a structural constituent of the cytoskeleton, binds actin, F-actin, profilin, ATP, and other proteins, and is associated with hydrolase and transglycosidase activities. The gene is associated with actin cytoskeleton organization, actin filament stabilization, polymerization, depolymerization, nucleation, capping, and cytoplasmic streaming, as well as cell tip growth, cell adhesion, dedifferentiation, and response to water. It localizes to the actin cytoskeleton, Golgi membrane, endosome, chloroplast envelope, plant-type cell wall, and plasmodesmata. ACT4 is linked to seed morphology, endosperm morphology, root hair length, cell elongation, photosynthetic rate, osmotic response sensitivity, disease tolerance, and salt tolerance. Related genes in other species link the family to pollen development, root hair development, cell division, and pavement cell morphogenesis.