DHAR — Pisum sativum

Summary

PsDHAR (PSAT3G101680) on garden pea chromosome 3LG5 encodes a dehydroascorbate reductase with glutathione transferase and copper-binding activities, belonging to the DHAR1/2/3/4 family. The gene is associated with ascorbate metabolism, the ascorbate-glutathione cycle, cellular oxidant detoxification, and protein glutathionylation. It is linked to regulation of symbiotic processes, positive regulation of salicylic acid-mediated signaling, and responses to salt, ozone, zinc, and hydrogen peroxide. Associations with traits include hydrogen peroxide content, photosynthetic rate, chlorophyll content, starch content, protein content, seed weight, turgor pressure, and stomatal resistance. Phenotypic connections include seed longevity, drought stress tolerance, oxidative stress tolerance, and mutualistic interaction with Piriformospora indica. Related genes in other species are linked to drought tolerance and aluminum tolerance.