Effect of nicotianamine on iron re-mobilization in de-rooted tomato seedlings

Summary An exogenous supply of nicotianamine is essential for the redistribution of⁵⁹iron via the symplast and the phloem to newly developing organs in de-rooted seedlings of the nicotianamine-less tomato mutantchloronerva. This observation supports the idea that nicotianamine could function as a translocator of iron within the symplast and the phloem.Abbreviations EDDHA ethylenediamine-N,N-bis(o-hydroxy-phenylacetic acid) - NA nicotianamine=(2S, 3S,3S)-N-[N-(3-amino-3-carboxypropyl)-3-amino-3-carboxypropyl]-azetidine-2-carboxylic acidThis paper is part 36 in the seriesThe normalizing factor for the tomato mutant chloronerva. For part 35 see Stephan and Grün (1989)