最近的报道指出一些植物组织受植物病原刺激而显著地产生氧自由基。由于对生物系统中氧自由基的行为了解不够,对这些发现的评说很不一致,本文评述了迄今所获的证据并概述了在寄主—病原物相互作用中活性氧的几个潜在作用,对植物防御反应中氧自由基的产生与哺乳动物吞噬细胞的呼吸跃变进行了比较。 Recent reports point out that some plant tissues are significantly stimulated by phytopathogenic oxygen radicals. Because of the lack of understanding of the behavior of oxygen free radicals in biological systems, comments on these findings are very inconsistent. This article reviews the evidence available to date and outlines several potential roles for reactive oxygen species in host-pathogen interactions, The generation of oxygen free radicals in the defensive response was compared to the respiration of mammalian phagocytes.