The Interplay among Polyamines and Nitrogen in Plant Stress Responses

Autor: Costas Delis, Ji-Hong Liu, Panagiotis F. Sarris, Muhammad Makky, Konstantinos A. Paschalidis, Georgios Tsaniklidis, Bao-Quan Wang, Filippos Ververidis, Konstantinos A. Loulakakis, Emmanouil A. Trantas
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Plants
Plants, Vol 8, Iss 9, p 315 (2019)
ISSN: 2223-7747
Popis: The interplay between polyamines (PAs) and nitrogen (N) is emerging as a key factor in plant response to abiotic and biotic stresses. The PA/N interplay in plants connects N metabolism, carbon (C) fixation, and secondary metabolism pathways. Glutamate, a pivotal N-containing molecule, is responsible for the biosynthesis of proline (Pro), arginine (Arg) and ornithine (Orn) and constitutes a main common pathway for PAs and C/N assimilation/incorporation implicated in various stresses. PAs and their derivatives are important signaling molecules, as they act largely by protecting and preserving the function/structure of cells in response to stresses. Use of different research approaches, such as generation of transgenic plants with modified intracellular N and PA homeostasis, has helped to elucidate a plethora of PA roles, underpinning their function as a major player in plant stress responses. In this context, a range of transgenic plants over-or under-expressing N/PA metabolic genes has been developed in an effort to decipher their implication in stress signaling. The current review describes how N and PAs regulate plant growth and facilitate crop acclimatization to adverse environments in an attempt to further elucidate the N-PAs interplay against abiotic and biotic stresses, as well as the mechanisms controlling N-PA genes/enzymes and metabolites.
Databáze: OpenAIRE