MD1 — Cucumis sativus

Summary

CsMD1 (CSA_2G174150) on cucumber chromosome 2 encodes a protein with NAD-L-malate dehydrogenase activity (EC 1.1.1.37) and belongs to the malate dehydrogenase NAD-dependent eukaryotic family. The gene is associated with malate and oxaloacetate metabolism, the glyoxylate cycle, aerobic and anaerobic respiration, NAD metabolism, and downregulation of photosynthesis. It is linked to carbon catabolite repression, fatty acid oxidation, polyamine metabolism, S-nitrosylation, and nitrate import. Associations with traits include photosynthetic rate, transpiration rate, stomatal resistance, chlorophyll content, quantum yield, photochemical quenching, respiration rate, sucrose and sugar content, carbon content, leaf length and senescence, root morphology, pistil morphology, nitrate transport and uptake, oxidative and low-temperature stress responses, and salt tolerance. The encoded protein is linked to localisation in the chloroplast stroma, plastid, ER, Golgi, vacuole, apoplast, cell wall, plasmodesma, and secretory vesicles. Studies of related genes in other species connect the family to fruit sweetness, firmness, weight, size, and color, seed weight and viability, plant height, drought tolerance, and water use efficiency.