European Journal of Plant Pathology

, Volume 121, Issue 3, pp 267–280

Roles of reactive oxygen species in interactions between plants and pathogens

Authors

    • Department of Plant Biology, Faculty of Life SciencesUniversity of Copenhagen
  • Hans J. Lyngs Jørgensen
    • Department of Plant Biology, Faculty of Life SciencesUniversity of Copenhagen
  • Jens Due Jensen
    • Department of Plant Biology, Faculty of Life SciencesUniversity of Copenhagen
  • David B. Collinge
    • Department of Plant Biology, Faculty of Life SciencesUniversity of Copenhagen
  • H. Shekar Shetty
    • Department of Studies in Applied Botany, Seed Pathology and BiotechnologyUniversity of Mysore
Article

DOI: 10.1007/s10658-008-9302-5

Cite this article as:
Shetty, N.P., Jørgensen, H.J.L., Jensen, J.D. et al. Eur J Plant Pathol (2008) 121: 267. doi:10.1007/s10658-008-9302-5

Abstract

The production of reactive oxygen species (ROS) by the consumption of molecular oxygen during host–pathogen interactions is termed the oxidative burst. The most important ROS are singlet oxygen (1O2), the hydroxyperoxyl radical (HO2·), the superoxide anion \(\left( {{\text{O}}_{\text{2}} ^ - } \right)\), hydrogen peroxide (H2O2), the hydroxyl radical (OH-) and the closely related reactive nitrogen species, nitric oxide (NO). These ROS are highly reactive, and therefore toxic, and participate in several important processes related to defence and infection. Furthermore, ROS also play important roles in plant biology both as toxic by-products of aerobic metabolism and as key regulators of growth, development and defence pathways. In this review, we will assess the different roles of ROS in host–pathogen interactions with special emphasis on fungal and Oomycete pathogens.

Keywords

AntimicrobialCell wall cross-linkingHypersensitive responseSignal transductionGene expressionSuccessful pathogenesisHydrogen peroxide

Abbreviations

ROS

reactive oxygen species

SA

salicylic acid

ET

ethylene

MAPK

mitogen-activated protein kinase

SOD

superoxide dismutase

CWA

cell wall appositions

NO

nitric oxide

JA

jasmonic acid

HR

hypersensitive response

PCD

programmed cell death

Copyright information

© KNPV 2008