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https://dx.doi.org/10.4161/psb...
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Nitrate does not compete with abscisic acid as a substrate of AtNPF4.6/NRT1.2/AIT1 in Arabidopsis

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Dec 2013 English Publisher:Informa UK LimitedJournal:Plant Signaling & Behavior, volume 8, page e26624 (eissn: 1559-2324, Copyright policy )
Authors: Kanno, Yuri; Kamiya, Yuji; Seo, Mitsunori;

doi: 10.4161/psb.26624

pmid: 24084651

pmc: PMC4091189

Nitrate does not compete with abscisic acid as a substrate of AtNPF4.6/NRT1.2/AIT1 in Arabidopsis

Abstract

We identified a member of the Arabidopsis NRT1/PTR FAMILY (NPF), AtNPF4.6, as an abscisic acid (ABA) transporter, AIT1. AtNPF4.6 was originally characterized as a low-affinity nitrate transporter NRT1.2. We hypothesized that the competition between nitrate and ABA as substrates for AtNPF4.6 might be involved in the interactions between nitrate and ABA signaling. However, the ABA transport activity of AtNPF4.6 was not inhibited by an excess amount of nitrate. In addition, the npf4.6 mutant was less sensitive to ABA than the wild type during germination irrespective of nitrate concentrations in the media. Furthermore, nitrate promoted germination of both wild type and npf4.6 in the presence of ABA. These results do not support the idea of a physiological linkage between nitrate and ABA signals through AtNPF4.6.

Related Organizations
Keywords

Nitrates, Short Communication, Two-Hybrid System Techniques, Anion Transport Proteins, Arabidopsis, Biological Transport, Germination, Abscisic Acid, Plant Proteins, Substrate Specificity

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
41
Top 10%
Top 10%
Top 10%
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