High Affinity Ammonium Transporters: Molecular Mechanism of Action

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High Affinity Ammonium Transporters: Molecular Mechanism of Action

The importance of the family of high affinity ammonium transporters is demonstrated by the presence of these proteins in all domains of life, including bacteria, archaea, fungi, plants, and humans. The majority of the proteins that have been studied from this family show high affinity and selectivity for ammonium, are impermeable to alkaline cations, saturate rapidly at low millimolar concentra...

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Ammonium is a primary source of nitrogen for plants. In legume plants ammonium can also be obtained by symbiotic nitrogen fixation, and NH(4)(+) is also a regulator of early and late symbiotic interaction steps. Ammonium transporters are likely to play important roles in the control of nodule formation as well as in nitrogen assimilation. Two new genes, LjAMT1;2 and LjAMT1;3, were cloned from L...

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ژورنال

عنوان ژورنال: Frontiers in Plant Science

سال: 2012

ISSN: 1664-462X

DOI: 10.3389/fpls.2012.00034