SOD — Solanum tuberosum

Summary

PGSC0003DMG400010660, designated StSOD or StCSD1 on potato chromosome 1, encodes a copper/zinc superoxide dismutase (EC 1.15.1.1) with superoxide dismutase activity, copper binding, and additional annotated functions including protein kinase activity and chitin/chitosan binding. The enzyme is associated with removal of superoxide radicals, reactive oxygen species homeostasis, detoxification, and cellular responses to oxidative stress, ozone, UV-B, light intensity, and copper. StSOD is associated with plant fresh weight, root dry weight, bacterial blight disease resistance, net photosynthetic rate, transpiration rate, water use efficiency, chlorophyll content, plant height, and salt tolerance. The gene is associated with high light stress tolerance, oxidative stress tolerance, copper homeostasis, and thermotolerance. Studies of related genes in other species link the family to salt tolerance and superoxide detoxification, as well as drought, low-temperature, and heat stress tolerance.