ERD5 — Cucumis sativus

Summary

CsERD5 (CSA_5G643300) on cucumber chromosome 5 encodes a proline dehydrogenase with proline oxidase activity, a FAD-linked oxidoreductase localized to mitochondria. The gene is associated with proline breakdown and metabolism, the GABA shunt, cytokinin metabolism, cell redox homeostasis, and regulation of photosynthesis, including downregulation of photosynthesis. It is linked to responses to hypoxia, salt stress, and oxidative stress, as well as to traits such as proline content, photosynthetic rate, chlorophyll content, respiration rate, plant height, stem diameter, and carbon content. Phenotypic associations include proline accumulation, drought tolerance, growth under water deficit, root elongation at low water potential, and the hypersensitive response. Studies of related genes in other species link the family to oxidative stress tolerance, response to dehydration, and heat stress tolerance.