CCS — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.2HG0186840 (HvCCS) on barley chromosome 2H encodes a copper chaperone for superoxide dismutase, possessing superoxide dismutase copper carrier activity, superoxide dismutase activity and copper binding, and belongs to the SOD-like Cu/Zn domain superfamily and heavy-metal-associated domain family. The gene is associated with cellular responses to ozone, UV-B, light intensity, heat, salinity and thirst, as well as detoxification, programmed cell death, seed germination, and cellular copper ion homeostasis. It is linked to photosynthetic rate, chlorophyll content, plant height, and salt tolerance (SALTTL). The protein localises to the chloroplast stroma and cytoplasm. Studies of related genes in other species connect the family to copper homeostasis, chloroplastic and cytosolic CuZnSOD activity, and traits including drought tolerance, heat tolerance, stripe rust, rooting depth, and shoot dry weight.