Acta Physiologiae Plantarum

, Volume 35, Issue 7, pp 2015–2036

Plant polyamines in abiotic stress responses

Authors

  • Kamala Gupta
    • Department of BotanyPresidency University
  • Abhijit Dey
    • Department of BotanyPresidency University
    • Molecular Biology Laboratory, Department of BiotechnologyPresidency University
Review

DOI: 10.1007/s11738-013-1239-4

Cite this article as:
Gupta, K., Dey, A. & Gupta, B. Acta Physiol Plant (2013) 35: 2015. doi:10.1007/s11738-013-1239-4

Abstract

Significance of naturally occurring intracellular polyamines (PAs), such as spermine, spermidine, and putrescine, in relation to the mechanism and adaptation to combat abiotic stress has been well established in plants. Because of their polycationic nature at physiological pH, PAs bind strongly to negative charges in cellular components such as nucleic acids, proteins, and phospholipids. Accumulation of the three main PAs occurs under many types of abiotic stress, and modulation of their biosynthetic pathway confers tolerance to drought or salt stress. Maintaining crop yield under adverse environmental conditions is probably the major challenge faced by modern agriculture, where PAs can play important role. Over the last two decades, genetic, transcriptomic, proteomic, metabolomic, and phenomic approaches have unraveled many significant functions of different PAs in the regulation of plant abiotic stress tolerance. In recent years, much attention has also been devoted to the involvement of PAs in ameliorating different environmental stresses such as osmotic stress, drought, heat, chilling, high light intensity, heavy metals, mineral nutrient deficiency, pH variation, and UV irradiation. The present review discusses the various reports on the role of PAs in the abiotic stress of plants with a note on current research tendencies and future perspectives. Co-relating all these data into a signal network model will be an uphill task, and solving this will give a clearer picture of the intricate abiotic stress signalling network in the plant kingdom.

Keywords

Abscisic acidAbiotic stressAntioxidantsPlant tolerancePolyamine metabolismSignaling

Abbreviations

ABA

Abscisic acid

ADC

Arginine decarboxylase

AIH

Agmatine iminohydrolase

AOs

Amine oxidases

CPA

N‐Carbamoylputrescine amidohydrolase

CuAO

Copper binding diamine oxidases

DAO

Diamine oxidases

DAP

Diaminopropane

DFMO

α‐dl‐Difluoromethylornithine

GA

Gibberelic acid

MGBG

Methylglyoxal bis‐(guanylhydrazone)

MIPKs

Mitogen‐activated protein kinases

NO

Nitric oxide

ODC

Ornithine decarboxylase

PA

Polyamine

PAL

Phenylalalnine ammonia lyase

PAO

Polyamine oxidases

PCD

Programmed cell death

PDH

Pyrroline dehydrogenase

Put

Putrescine

ROS

Reactive oxygen species

SAM

S‐Adenosylmethionine

SAMDC

SAM decarboxylase

Spd

Spermidine

Spm

Spermine

SPDS

Spermidine synthase

SPMS

Spermine synthase

Copyright information

© Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków 2013