ERD5 — Asparagus officinalis

Summary

AoERD5 (also known as PDH1, PDH2, PRO1, and ATPDH) on asparagus chromosome 10 encodes a proline dehydrogenase with proline oxidase activity, a FAD-linked oxidoreductase containing a Proline_DH_dom domain. The enzyme is localised to mitochondria and is associated with proline breakdown, somatic embryogenesis, embryogenesis, cell differentiation, cellular response to hypoxia, response to oxidative stress, osmotic response, defence response to bacteria, and response to thirst. It is linked to citrulline biosynthesis and amino acid catabolism pathways. The gene is associated with respiration rate, photosynthetic rate, proline accumulation and metabolism, growth under water deficit, hypersensitive response, NADP/NADPH ratio, root elongation at low water potential, dehydration response, drought tolerance, and abiotic stress response. Studies of related genes in other species link the family to drought recovery, leaf relative water content, proline content, net photosynthetic rate, and disease tolerance.