Ora David-Assael

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Zn hyperaccumulator plants sequester Zn into their shoot vacuoles. To date, the only transporters implicated in Zn sequestration into the vacuoles of hyperaccumulator plants are cation diffusion facilitators (CDFs). We investigated the expression in Arabidopsis halleri of a homolog of AtMHX, an A. thaliana tonoplast transporter that exchanges protons with(More)
AtMHX is an Arabidopsis tonoplast transporter that can exchange protons with Mg2+ and Zn2+ ions. This transporter, which may play a role in ion homeostasis of plants, is encoded by a single gene in Arabidopsis. The molecular mechanisms that regulate the expression of this transporter are practically unknown. While AtMHX transcript can be easily visualized,(More)
Approximately 20% of plant genes possess upstream open-reading frames (uORFs). The effect of uORFs on gene expression has mainly been studied at the translational level. Very little is known about the impact of plant uORFs on transcript content through the nonsense-mediated mRNA decay (NMD) pathway, which degrades transcripts bearing premature termination(More)
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