Signaling pathways underlying nitrogen-dependent changes in root system architecture : from model to crop species

© The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Experimental Biology.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 71(2020), 15 vom: 25. Juli, Seite 4393-4404
1. Verfasser: Jia, Zhongtao (VerfasserIn)
Weitere Verfasser: von Wirén, Nicolaus
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Review Brassinosteroids auxin lateral root development local signal nitrate transporter nitrogen signaling nutrient efficiency mehr... primary root development root traits systemic signal Nitrates Nitrogen N762921K75
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520 |a Among all essential mineral elements, nitrogen (N) is required in the largest amounts and thus is often a limiting factor for plant growth. N is taken up by plant roots in the form of water-soluble nitrate, ammonium, and, depending on abundance, low-molecular weight organic N. In soils, the availability and composition of these N forms can vary over space and time, which exposes roots to various local N signals that regulate root system architecture in combination with systemic signals reflecting the N nutritional status of the shoot. Uncovering the molecular mechanisms underlying N-dependent signaling provides great potential to optimize root system architecture for the sake of higher N uptake efficiency in crop breeding. In this review, we summarize prominent signaling mechanisms and their underlying molecular players that derive from external N forms or the internal N nutritional status and modulate root development including root hair formation and gravitropism. We also compare the current state of knowledge of these pathways between Arabidopsis and graminaceous plant species 
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650 4 |a systemic signal 
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700 1 |a von Wirén, Nicolaus  |e verfasserin  |4 aut 
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