THE INVOLVEMENT OF OXYGEN-DERIVED FREE-RADICALS IN PLANT-PATHOGEN INTERACTIONS

被引：10

作者：

GOODMAN, BA

机构：

来源：

PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION B-BIOLOGICAL SCIENCES | 1994年 / 102卷

关键词：

D O I：

10.1017/S0269727000014500

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Plants have evolved a multiplicity of defence mechanisms against pathogen attack. Their modes of action may be to (i) kill the pathogen directly, (ii) block the action of enzymes required for infection, or (iii) erect barriers to pathogen growth. Some of these reactions proceed via free radical intermediates and make use of either atmospheric oxygen or reactive oxygen species. This paper reviews the various types of reaction involving oxygen-derived free radicals that are initiated in plant tissue when it is invaded by pathogenic organisms. Both the production of free radicals by plants in defensive processes and the utilisation of free radicals by pathogens in offensive reactions are considered and particular attention is given to the use of electron paramagnetic resonance (EPR) spectroscopy for the direct observation of such free radical reactions.

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页码：479 / 493

页数：15

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