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. 2015 Apr 23;66(13):3699–3715. doi: 10.1093/jxb/erv165

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© The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 10. — Proposed model for the nitrate response in the maize root TZ. After nitrate supply, the transcription of a wide set of genes is regulated. This reprogramming in the transcriptome could be translated as a proteome rearrangement. The transcriptome change could be dependent on both nitrate itself or on some NR-derived product, such as NO, which was confirmed to represent a key signal in the root nitrate response. These molecular events could be implicated in the physiological adaptation of plants to nitrate fluctuations in soil. MZ, maturation zone; EZ, elongation zone-enriched portion; TZ, TZ-enriched portion; M, meristem-enriched zone.