Article
A mutant of the Arabidopsis phosphate transporter PHT1;1 displays enhanced arsenic accumulation.
The Plant cell - 1 Mar 2007
Catarecha Pablo, Segura Maria Dolores, Franco-Zorrilla José Manuel, García-Ponce Berenice, Lanza Mónica, Solano Roberto, Paz-Ares Javier, Leyva Antonio
Abstract excerpt
The exceptional toxicity of arsenate [As(V)] is derived from its close chemical similarity to phosphate (Pi), which allows the metalloid to be easily incorporated into plant cells through the high-affinity Pi transport system. In this study, we identified an As(V)-tolerant mutant of Arabidopsis thaliana named pht1;1-3, which harbors a semidominant allele coding for the high-affinity Pi transporter PHT1;1....
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