Nitrogen Systemic Signaling: From Symbiotic Nodulation to Root Acquisition.

Pierre Gautrat, Carole Laffont, Florian Frugier, Sandrine Ruffel

Journal: Trends in plant science 2021;26(4):392-406

PMID: 33358560

Full Text on Elsevier Science View on PubMed

Abstract

Plant nutrient acquisition is tightly regulated by resource availability and metabolic needs, implying the existence of communication between roots and shoots to ensure their integration at the whole-plant level. Here, we focus on systemic signaling pathways controlling nitrogen (N) nutrition, achieved both by the root import of mineral N and, in legume plants, through atmospheric N fixation by symbiotic bacteria inside dedicated root nodules. We explore features conserved between systemic pathways repressing or enhancing symbiotic N fixation and the regulation of mineral N acquisition by roots, as well as their integration with other environmental factors, such as phosphate, light, and CO availability.

Address: IPS2 (Institute of Plant Sciences - Paris Saclay), CNRS, INRAe, Université Paris-Diderot, Université d'Evry, Université Paris-Saclay, Bâtiment 630, Gif-sur-Yvette, France.; IPS2 (Institute of Plant Sciences - Paris Saclay), CNRS, INRAe, Université Paris-Diderot, Université d'Evry, Université Paris-Saclay, Bâtiment 630, Gif-sur-Yvette, France. Electronic address: [email protected].; BPMP, Univ Montpellier, CNRS, INRAe, Montpellier SupAgro, Montpellier, France. Electronic address: [email protected].

DOI: 10.1016/j.tplants.2020.11.009

Link outs

Free resources

Other Literature Sources:

https://scite.ai/reports/33358560

Subscription / membership required

Full Text Sources:

https://linkinghub.elsevier.com/retrieve/pii/S1360...

MeSH Terms: Fabaceae, Nitrogen, Nitrogen Fixation, Plant Root Nodulation, Plant Roots, Root Nodules, Plant, Symbiosis