Unravelling ties in the nitrogen network: Polyamines and nitric oxide emerging as essential players in signalling roadway

Nitrogen (N) is a central mineral nutrient essential for plant development and growth. It is usually scarcely found in soils, so the knowledge of the overall plant N metabolism deserves substantial attention. Polyamines (PAs) are N‐containing low‐molecular‐weight compounds of polycationic nature inv...

Full description

Saved in:
Bibliographic Details
Published in:Annals of applied biology 2021-03, Vol.178 (2), p.192-208
Main Authors: Recalde, Laura, Gómez Mansur, Nabila M., Cabrera, Andrea V., Matayoshi, Carolina L., Gallego, Susana M., Groppa, María D., Benavides, María P.
Format: Article
Language:English
Subjects:
Biosynthesis
Cofactors
Free radicals
Metabolism
Nitric oxide
Nitrogen
Nutrients
Polyamines
Roads
Signal transduction
Signaling
signalling cascades
Stress response
stress responses
Substrates
Sustainable agriculture
Sustainable development
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Nitrogen (N) is a central mineral nutrient essential for plant development and growth. It is usually scarcely found in soils, so the knowledge of the overall plant N metabolism deserves substantial attention. Polyamines (PAs) are N‐containing low‐molecular‐weight compounds of polycationic nature involved in essential processes all throughout the life of plants whereas nitric oxide (NO) is a gaseous free radical involved in signalling cascades related to many physiological events. PAs and NO share signalling functions and interact with each other in several biological functions, mainly in stress responses. Biosynthesis pathways of PAs and NO are overlapped; PAs induce NO formation, but it is still not completely defined whether PAs act as substrates, cofactors, or signals for promoting NO synthesis and also, which are the mechanisms involved in NO regulation of PAs metabolism. Polyamine levels are of vital importance in the regulation of the network of N‐metabolising pathways in plants, as they are components of the core of the overall N metabolism. In light of the importance of improving the efficiency of N uptake and distribution, it is time to elucidate the intricate relationship among N as a nutrient with PAs and NO as emerging signalling molecules. The close cooperation among these players in the whole N metabolism is an interesting target for the development of biotechnological tools for sustainable agriculture. Schematic representation of the common precursors and some functions shared by polyamines and nitric oxide in plants.
ISSN:0003-4746
1744-7348
DOI:10.1111/aab.12642