ACH1 — Oryza sativa Japonica

Summary

OS02G0112100 (ACH1, also known as NRT2.1) encodes a nitrate transporter belonging to the MFS superfamily, with nitrate and nitrite transmembrane transporter activity. The gene is associated with nitrate transport from roots to shoots, yield, and manganese relations in rice. It has been linked to nitrogen homeostasis, nitrate assimilation, nitrite transport, cellular response to nitrate, carotenoid metabolism, aerenchyma formation, auxin polar transport, glutathione metabolism, phenylpropanoid anabolism, and adventitious root development. The protein localises to the plasmalemma, tonoplast, transporter complex, cytoplasm, and nucleus. Associations with grain yield, plant height, chlorophyll content, photosynthetic rate, anthesis time, root length, lateral root length, nitrogen and nitrate content, salt tolerance, cadmium uptake, pathogen resistance, root hair development, and flowering time have been reported. Studies of related genes in other species link the family to nitrate high-affinity transport, root architecture, and biomass accumulation.