Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At1g56430	Synthesizes nicotianamine, a polyamine which serves as a sensor for the physiological iron status within the plant, and/or might be involved in the transport of iron.	No verified direct reference in this release
Arabidopsis	At1g09240	Synthesizes nicotianamine, a polyamine which serves as a sensor for the physiological iron status within the plant, and/or might be involved in the transport of iron.	No verified direct reference in this release
Arabidopsis	At5g04950	Synthesizes nicotianamine, a polyamine which serves as a sensor for the physiological iron status within the plant, and/or might be involved in the transport of iron.	No verified direct reference in this release
Rice	Os07g0689600	Synthesizes nicotianamine, a polyamine that is the first intermediate in the synthesis of the phytosiderophores of the mugineic acid type found in gramineae which serve as a sensor for the physiological iron status within the plant, and/or might be involved in the transport of iron.	Three rice nicotianamine synthase genes, OsNAS1, OsNAS2, and OsNAS3 are expressed in cells involved in long-distance transport of iron and differentially regulated by iron.; 2003; DOI: 10.1046/j.1365-313x.2003.01878.x; PMID: 14617093; https://pubmed.ncbi.nlm.nih.gov/14617093/