HSP70 — Beta vulgaris subsp. vulgaris

Summary

BvHSP70 (BVRB_1G001580) on sugar beet chromosome 1 encodes a member of the heat shock 70 protein family, with ATP hydrolase activity, heat shock protein binding, and protein folding chaperone functions. It is associated with protein folding in the endoplasmic reticulum, the ERAD pathway, the unfolded protein response, cytoskeleton organization, iron-sulfur cluster assembly, sumoylation, and downregulation of ethylene-mediated signaling. The gene is linked to thermotolerance, osmotic and salt stress tolerance, ROS scavenging, chloroplast development, and traits including photosynthetic rate, stomatal resistance, leaf senescence, flowering time, seed growth, root morphology, stem elongation, zinc concentration, and abscisic acid sensitivity. Related genes in other species link the family to protein import into chloroplasts, ethylene perception, and seed germination.