ACH1 — Lactuca sativa

Summary

LsACH1 (also known as NRT2.1, NRT2.2, NRT2.3, NRT2.4, LIN1) on chromosome 1 of garden lettuce encodes a nitrate transporter belonging to the major facilitator superfamily (MFS) with nitrate and nitrite transmembrane transporter activity. The gene is associated with nitrate transmembrane transport, nitrate import, nitrite transport, nitrate assimilation, cellular response to nitrate, pH reduction, cell development, cell wall organization, response to wounding, triglyceride metabolism, and terpenoid anabolism. It localizes to the membrane, plasmalemma, tonoplast, and transporter complex. Associations include nitrate content, root hair length, root development, nitrogen transport and uptake, cadmium uptake and accumulation, lateral root initiation and development, pathogen resistance, flowering time, root elongation, growth promotion, root hydraulic conductivity, and copper toxicity response. Studies of related genes in other species link the family to nitrate high-affinity transport, disease resistance, drought response, seed yield, and biomass accumulation.