Nitrate transporters in plants : structure, function and regulation.

Forde, Brian G. (2000) Nitrate transporters in plants : structure, function and regulation. Biochimica et Biophysica Acta (BBA) - Biomembranes, 1465 (1-2). pp. 219-235. ISSN 0005-2736

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Physiological studies have established that plants acquire their NO−3 from the soil through the combined activities of a set of high- and low-affinity NO−3 transport systems, with the influx of NO−3 being driven by the H+ gradient across the plasma membrane. Some of these NO−3 transport systems are constitutively expressed, while others are NO−3-inducible and subject to negative feedback regulation by the products of NO−3 assimilation. Here we review recent progress in the characterisation of the two families of NO−3 transporters that have so far been identified in plants, their structure and their regulation, and consider the evidence for their roles in NO−3 acquisition. We also discuss what is currently known about the genetic basis of NO−3 induction and feedback repression of the NO−3 transport and assimilatory pathway in higher plants.

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Journal Article
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Biochimica et Biophysica Acta (BBA) - Biomembranes
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19 May 2008 10:56
Last Modified:
21 Nov 2022 20:43