Biologia Plantarum

, 52:401

Physiology and biochemistry of waterlogging tolerance in plants

  • R. K. Sairam
  • D. Kumutha
  • K. Ezhilmathi
  • P. S. Deshmukh
  • G. C. Srivastava
Review

DOI: 10.1007/s10535-008-0084-6

Cite this article as:
Sairam, R.K., Kumutha, D., Ezhilmathi, K. et al. Biol Plant (2008) 52: 401. doi:10.1007/s10535-008-0084-6

Abstract

Waterlogging is a serious problem, which affects crop growth and yield in low lying rainfed areas. The main cause of damage under waterlogging is oxygen deprivation, which affect nutrient and water uptake, so the plants show wilting even when surrounded by excess of water. Lack of oxygen shift the energy metabolism from aerobic mode to anaerobic mode. Plants adapted to waterlogged conditions, have mechanisms to cope with this stress such as aerenchyma formation, increased availability of soluble sugars, greater activity of glycolytic pathway and fermentation enzymes and involvement of antioxidant defence mechanism to cope with the post hypoxia/anoxia oxidative stress. Gaseous plant hormone ethylene plays an important role in modifying plant response to oxygen deficiency. It has been reported to induce genes of enzymes associated with aerenchyma formation, glycolysis and fermentation pathway. Besides, nonsymbiotic-haemoglobins and nitric oxide have also been suggested as an alternative to fermentation for maintaining lower redox potential (low NADH/NAD ratio), and thereby playing an important role in anaerobic stress tolerance and signaling.

Additional key words

anoxiaantioxidative enzymesethylenefermentationfloodingglycolysishypoxianitric oxidenon-symbiotic haemoglobinoxidative stresssugars

Abbreviations

AA

ascorbate

ACC

1-aminocyclopropane-1-carboxylic acid

ADH

alcohol dehydrogenase

AEC

adenylate energy charge

ANP

anaerobic protein

APX

ascorbate peroxidase

CAT

catalase

DHAR

dihydroascorbate peroxidase

GR

glutathione reductase

GSH

glutathione

Hb

haemoglobin

cNR

cytosolic nitrate reductase

LDH

lactate dehydrogenase

MDHAR

monodihzdroascorbate peroxidase

PM-NR

plasma membrane nitrate reductase

PM-Ni-NOR

plasma membrane nitrite nitric oxide reductase

NAD(P)H

nicotine amide adenine dinucleotide phosphate-reduced

NiR

nitrite reductase

NO

nitric oxide

PDC

pyruvate decarboxylase

SOD

superoxide dismutase

SuSy

sucrose synthase

XET

xyloglucan endo-trans-glucosylase

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • R. K. Sairam
    • 1
  • D. Kumutha
    • 1
  • K. Ezhilmathi
    • 1
  • P. S. Deshmukh
    • 1
  • G. C. Srivastava
    • 1
  1. 1.Division of Plant PhysiologyIndian Agricultural Research InstituteNew DelhiIndia