[Frontiers in Bioscience E1, 142-152, June 1, 2009]

Oxidative burst and plant disease resistance

Andrey Averyanov

Research Institute of Phytopathology, Bolshie Vyazemy, Moscow region, 143050 Russia


1. Abstract
2. Introduction
3. Occurrence of oxidative burst
3.1. Eliciting and suppressing
3.2. Pathogen originated ROS
3.3. Relations of oxidative burst to disease resistance
3.3.1. Innate resistance
3.3.2. Acquired resistance
4. Chemical sources of ROS involved in oxidative burst
5. Targets for ROS during oxidative burst
5.1. ROS functions in unstressed organisms
5.2. Post-inoculation events
5.3. ROS toxicity to microbes
5.4. ROS phytotoxicity
5.5. Induction of acquired resistance
6. Ambiguity of ROS roles in plant disease resistance
7. Perspective
8. Acknowledgements
9. References


This mini-review summarizes briefly main facts and speculations on roles of reactive oxygen species (ROS) in plant interactions with pathogenic microflora. Examples relating the infection-induced oxidative burst with innate or acquired resistance or susceptibility are provided. Agents triggering ROS production, ROS sources and ROS-involving defense reactions are listed. Special attention has been drawn to the ROS involved in either resistance or compatibility and which are produced by both host and pathogen.