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The Arabidopsis NRT1.1 transporter participates in the signaling pathway triggering root colonization of nitrate-rich patches
TLDR
It is concluded that NRT1.1, which is localized at the forefront of soil exploration by the roots, is a key component of the NO3−-sensing system that enables the plant to detect and exploit NO3-rich soil patches. Expand
Molecular and functional regulation of two NO3- uptake systems by N- and C-status of Arabidopsis plants.
TLDR
Observations show that expression of Nrt2;1 is under feedback repression by N-metabolites resulting from NO3- reduction, and changes in the Nrt1 mRNA level are not always associated with similarChanges in the activities of high- or low-affinity No3- transport systems. Expand
An Arabidopsis T‐DNA mutant affected in Nrt2 genes is impaired in nitrate uptake
TLDR
It is demonstrated that plant NRT2 proteins do have a role in HATS, and the de‐regulated expression of a Nicotiana plumbaginifolia Nrt2 gene restored the mutant nitrate influx to that of the wild‐type. Expand
Anion channels/transporters in plants: from molecular bases to regulatory networks.
TLDR
This review illustrates that the members of a given gene family exhibit a diversity of substrate specificity, regulation, and intracellular localization, and are involved in a wide range of physiological functions, and shows that post-translational modifications of transport proteins play a key role in the regulation of anion transport activity. Expand
The Arabidopsis vacuolar anion transporter, AtCLCc, is involved in the regulation of stomatal movements and contributes to salt tolerance.
TLDR
It is demonstrated that AtCLCc is essential for stomatal movement and salt tolerance by regulating chloride homeostasis by investigating new physiological functions of this CLC member in Arabidopsis. Expand
Expression analysis of a high-affinity nitrate transporter isolated from Arabidopsis thaliana by differential display
TLDR
It is shown that both genes are induced by very low levels of nitrate (50 μM KNO3), however, stronger induction was observed with NRT2:1At than with Nrt1:1 at, probably reflecting the de-repression of the high-affinity transport system during N-starvation. Expand
Nitrogen regulation of root branching.
TLDR
It is speculated on the possibility that the effects elicited by external L-glutamate represent a novel form of foraging response that could potentially enhance a plant's ability to compete with its neighbours and micro-organisms for localized sources of organic nitrogen. Expand
From the soil to the seeds: the long journey of nitrate in plants.
TLDR
The aim of this review is to provide an overall picture of the numerous membrane proteins that achieve these processes by being localized in different compartments and in different tissues. Expand
Major alterations of the regulation of root NO(3)(-) uptake are associated with the mutation of Nrt2.1 and Nrt2.2 genes in Arabidopsis.
TLDR
It is shown that the residual HATS activity in atnrt2 plants is not inducible by NO(3)(-), indicating that the mutant is more specifically impaired in the inducable component of the HATS. Expand
Nitrate transport in plants: which gene and which control?
TLDR
This is a review of recent progress in the characterization of the NRT2 nitrate transporters, the composition of this family in Arabidopsis, their possible role in nitrate acquisition, and some aspects of their regulation in plants. Expand
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