Disruption of Nap14, a plastid-localized non-intrinsic ABC protein in Arabidopsis thaliana results in the over-accumulation of transition metals and in aberrant chloroplast structures.

Abstract excerpt

Chloroplasts are the major sink for Fe in shoot tissues because of the requirements of the photosynthetic process and to storage in ferritins. Such requirements are common both to plastids and to their evolutionary progenitors, the cyanobacteria. Here, we examined whether iron transport mechanisms were conserved throughout the evolution of photosynthetic organisms. Comparison of the sequences of putative plastid...

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