DHAR — Brassica juncea

Summary

BjDHAR (BJUB03G35520S) is a dehydroascorbate reductase from Indian mustard (Brassica juncea) on chromosome B03, a member of the DHAR1/2/3/4 family with glutathione S-transferase and thioredoxin-like domains. The enzyme has dehydroascorbate reductase and glutathione transferase activities and binds copper. It is associated with the ascorbate-glutathione cycle, ascorbate metabolism, cellular oxidant detoxification, reactive oxygen species metabolism, protein glutathionylation, pigment metabolism, pigmentation, the TCA cycle, and autotrophy. Associations include leaf relative water content, chlorophyll a and total chlorophyll, carotenoid and proline content, photosynthetic rate, biomass yield, seed weight, protein content, root length, and salt tolerance. The gene is linked to seed longevity, drought and abiotic stress tolerance, salicylic acid accumulation and pathway regulation, glutathione and ascorbate redox state, and mutualistic interaction with Piriformospora indica. It localises to the apoplast, chloroplast stroma, mitochondria, cytosol, nucleus, vacuole, and plasmalemma.