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  • Title: Integration of local and systemic signaling pathways for plant N responses.
    Author: Alvarez JM, Vidal EA, Gutiérrez RA.
    Journal: Curr Opin Plant Biol; 2012 Apr; 15(2):185-91. PubMed ID: 22480431.
    Abstract:
    Nitrogen (N) is an essential macronutrient and a signal that has profound impacts on plant growth and development. In order to cope with changing N regimes in the soil, plants have developed complex regulatory mechanisms that involve short-range and long-range signaling pathways. These pathways act at the cellular and whole plant scale to coordinate plant N metabolism, growth and development according to external and internal N status. Although molecular components of local and systemic N signaling have been identified and characterized, an integrated view of how plants coordinate and organize the N response is still lacking. In this review, we discuss recent advances toward understanding the mechanisms of local and systemic N responses and provide an integrated model for how these responses are orchestrated.
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