Article
The putative high-affinity nitrate transporter NRT2.1 represses lateral root initiation in response to nutritional cues.
Proceedings of the National Academy of Sciences of the United States of America - 20 Sept 2005
Little Daniel Y, Rao Hongyu, Oliva Sabrina, Daniel-Vedele Françoise, Krapp Anne, Malamy Jocelyn E
Abstract excerpt
Lateral root initiation is strongly repressed in Arabidopsis by the combination of high external sucrose and low external nitrate. A previously isolated mutant, lin1, can overcome this repression. Here, we show that lin1 carries a missense mutation in the NRT2.1 gene. Several allelic mutants, including one in which the NRT2.1 gene is completely deleted, show similar phenotypes to lin1 and fail to complement lin1....
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