Article
Altered shoot/root Na+ distribution and bifurcating salt sensitivity in Arabidopsis by genetic disruption of the Na+ transporter AtHKT1.
FEBS letters - 6 Nov 2002
Mäser Pascal, Eckelman Brendan, Vaidyanathan Rama, Horie Tomoaki, Fairbairn David J, Kubo Masahiro, Yamagami Mutsumi, Yamaguchi Katsushi, Nishimura Mikio, Uozumi Nobuyuki, Robertson Whitney, Sussman Michael R, Schroeder Julian I
Abstract excerpt
Sodium (Na+) is toxic to most plants, but the molecular mechanisms of plant Na+ uptake and distribution remain largely unknown. Here we analyze Arabidopsis lines disrupted in the Na+ transporter AtHKT1. AtHKT1 is expressed in the root stele and leaf vasculature. athkt1 null plants exhibit lower root Na+ levels and are more salt resistant than wild-type in short-term root growth assays. In shoot tissues, however,...
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