DHAR — Cicer arietinum

Summary

LOC101496317 (CaDHAR) encodes a dehydroascorbate reductase, an enzyme with glutathione transferase and copper-binding activities that belongs to the DHAR1/2/3/4 family. In chickpea, this gene is associated with ascorbate metabolism, the ascorbate-glutathione cycle, glutathione anabolism, protein glutathionylation, cysteine anabolism, cellular oxidant detoxification, and responses to hydrogen peroxide, ozone, jasmonic acid, zinc, and symbiotic fungi. It is also linked to the positive regulation of salicylic acid-mediated signaling, seed germination, acquisition of seed longevity, and regulation of the symbiotic process. The encoded protein localizes to the cytosol, nucleus, plasma membrane, mitochondria, chloroplast stroma, apoplast, and plant-type vacuole. CaDHAR is associated with net photosynthetic rate, water use efficiency, chlorophyll content, stomatal resistance, photochemical quenching, and relative growth rate, as well as with oxidative stress tolerance, drought stress tolerance, seed longevity, and mutualistic interaction with Piriformospora indica. Studies of related genes in other species link the family to drought tolerance and aluminum tolerance.