POSTTRANSCRIPTIONAL REGULATION OF PLANT FERRITIN ACCUMULATION IN RESPONSE TO IRON AS OBSERVED IN THE MAIZE MUTANT YS1

The maize mutant ys1 accumulates iron in leaves to a lower extent than a Fe-efficient genotype, In this mutant, ferritin mRNA accumulates in response to iron to a similar level as in other genotypes, However, f erritin protein and mRNA abundance does not correlate in ys1 leaves, d emonstrating that iron also controls plant ferritin protein accumulati on at the post-transcriptional level.