MDH — Pisum sativum

Summary

PsMDH (PSAT3G009480) encodes a malate dehydrogenase (MDH) with NAD-L-malate dehydrogenase activity, belonging to the lactate/malate dehydrogenase family. It is associated with the TCA cycle, glyoxylate cycle, oxidative phosphorylation, cellular respiration, fermentation, and the pentose-phosphate shunt. The gene is linked to malate metabolism, sucrose and starch anabolism, stomatal opening, seed germination, chloroplast organization, and responses to hydrogen peroxide and high temperature stress. Its product localizes to the plastid stroma, chloroplast envelope, inner membrane, and mitochondrial lumen, and is associated with the Ycf2/FtsHi complex and plastid RNA polymerase complex. PsMDH is associated with photosynthetic rate, germination rate, chloroplast development, and high temperature stress response. Studies of related genes in other species link the family to chloroplast development under heat stress and traits including drought tolerance, seed weight, and plant height.