HSP68 — Cucumis sativus

Summary

CsHSP68 (CSA_4G179170) on cucumber chromosome 4 encodes a heat shock 70 kDa protein, mitochondrial, a member of the Hsp70 chaperone family with ATP hydrolase activity and protein folding chaperone function. The gene is associated with diverse biological processes including protein folding in the ER, cellular auxin homeostasis, and regulation of defence response to fungi. It is linked to traits such as cucurbit downy mildew response, drought tolerance, salt tolerance, chlorophyll content, leaf senescence, pollen fertility, and disease tolerance. The encoded protein localises to multiple cellular compartments including mitochondria, chloroplast stroma, ER lumen, tonoplast, and plant-type cell wall. Studies of related Hsp70 family members in other species connect this gene family to root development, fertility, embryo development, and oxidative stress responses.