NR — Solanum lycopersicum

Summary

SOLYC11G011810.3 (NR) on tomato chromosome 11 encodes a nitrate reductase, an enzyme with NADH:nitrate reductase activity, cytochrome-b5 reductase activity, sulfite oxidase activity, and cytokinin riboside 5'-monophosphate phosphoribohydrolase activity, binding molybdenum, FAD, and Moco. The gene is associated with nitrate metabolism, nitrogen content, leaf nitrogen content, rubisco content, and photosynthetic capacity. It is linked to fruit ripening, carotenoid biosynthesis, chloroplast development, ethylene signaling, and cytokinin production. Associations include nitrogen use efficiency, salt stress tolerance, root development, flowering time, and ABA stress response. The gene is connected to traits such as seed protein content, harvest index, seedling vigor, specific leaf area, and leaf water potential. Studies of related genes in other species link the family to nitric oxide generation, biomass accumulation, and defense responses.