LKR — Brassica juncea

Summary

BJUA01G39360S (symbol LKR, also known as BjLKR/SDH) on chromosome A01 of Indian mustard (Brassica juncea) encodes a bifunctional enzyme with saccharopine dehydrogenase (NADP+, L-lysine-forming) activity, belonging to the LOR/SDH bifunctional enzyme family. The gene is associated with L-lysine breakdown, pigment metabolism, autotrophy, detoxification, and the TCA cycle, and its product localises to mitochondria and the cytosol. Associations include chlorophyll content and root length. Studies of related genes in other species link the family to lysine catabolism, seed germination, mitochondrial function, and stress responses including salt and osmotic stress tolerance, as well as traits such as drought recovery, plant height, and seed development.