- Title
- AtNPF5.5, a nitrate transporter affecting nitrogen accumulation in Arabidopsis embryo
- Creator
- Leran, Sophie; Garg, Bharti; Boursiac, Yann; Corratge-Failli, Claire; Brachet, Chantal; Tillard, Pascal; Gojon, Alain; Lacombe, Benoit
- Date
- 2015
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/161790
- Identifier
- vital:12571
- Identifier
-
https://doi.org/10.1038/srep07962
- Identifier
- ISBN:2045-2322
- Abstract
- Dipeptide (Leu-Leu) and nitrate transport activities of 26 Arabidopsis NPF (NRT1/PTR Family) proteins were screened in Saccharomyces cerevisiae and Xenopus laevis oocytes, respectively. Dipeptide transport activity has been confirmed for 2 already known dipeptide transporters (AtNPF8.1 and AtNPF8.3) but none of the other tested NPFs displays dipeptide transport. The nitrate transport screen resulted in the identification of two new nitrate transporters, AtNPF5.5 and AtNPF5.10. The localization of the mRNA coding for NPF5.5 demonstrates that it is the first NPF transporter reported to be expressed in Arabidopsis embryo. Two independent homozygous npf5.5 KO lines display reduced total nitrogen content in the embryo as compared to WT plants, demonstrating an effect of NPF5.5 function on the embryo nitrogen content. Finally, NPF5.5 gene produces two different transcripts (AtNPF5.5a and AtNPF5.5b) encoding proteins with different N-terminal ends. Both proteins are able to transport nitrate in xenopus oocytes.
- Publisher
- Nature Publishing Group
- Relation
- Scientific Reports Vol. 5, no. (2015), p. 1-7
- Rights
- http://creativecommons.org/licenses/by-nc-nd/4.0/
- Rights
- Copyright © This work is licensed under a Creative Commons Attribution-NonCommercial- NoDerivs 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material.
- Rights
- Open Access
- Rights
- This metadata is freely available under a CCO license
- Subject
- MD Multidisciplinary; Saccharomyces cerevisiae; Xenopus; Animals; Anion Transport Proteins; Arabidopsis Proteins; Biological Transport; Dipeptides; Gene Expression Regulation, Plant; Gene Knockout Techniques; Molecular Sequence Data; Nitrates; Oocytes; RNA, Messenger; Seeds
- Full Text
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