in the pre-anthesis phase NAD-ME isoform with MW 115 kDa occurs in cytosol of mesophyll and bundle sheath cells of control and drought-exposed plants. In mesophyll cells 100% activity is found in cytosol fractions, and about 9.4% of the total NAD-ME activity is localized in cytosol of bundle sheath cells
one of NAD-ME isoforms with MW 110 kDa is located in mitochondria of bundle sheath cells of control and drought-exposed plants, and another isoform of MW 121 kDa is formed in mitochondria of bundle sheath cells under influence of drought. After resuming watering the 121 kDa isoform disappears again. About 90.6% of the total NAD-ME activity is localized in mitochondrial stroma of bundle sheath cells
several molecular forms of NAD-ME with different subcellular localization patterns in the studied phases of amaranth ontogenesis. No enzyme activity is observed experimentally in chloroplasts of mesophyll and bundle sheath cells