植物先天免疫研究现状与前景展望

Research Advances and Prospect for Plant Innate Immunity

因病原微生物侵染导致的植物病害对农作物的产量和质量造成了巨大损失,也对我国的粮食安全构成重大威胁。化学农药能够较有效地控制农作物病害,但其大量施用也给环境带来了巨大污染。植物和病原微生物在漫长的相互作用过程中形成了互相识别、共同进化的机制。深刻理解农作物与病原微生物间的识别与互作分子机制,可以加快农作物抗性品种分子育种,从而减少化学农药的施用。近十多年来,植物免疫识别和病原微生物致病性的分子机理研究取得了显著进展,并逐渐形成了植物与病原微生物分子互作的进化模型,这些成果为农作物的抗病性研究和病原微生物的致病功能解析奠定了基础,也为利用现代生物技术改良植物抗病性提供了新的策略和思路。文章综述了植物先天免疫研究的重要进展,并探讨了未来的重要研究方向。

Crop diseases cause serious yield loss and are threatening our food security. Although chemical pesticides contribute effectively to plant disease control, huge fertilizing amount led to substantial environmental pollution. During long-term interactions, plants and pathogenic microbes have developed diverse strategies to recognize and respond to each other. Understanding the interaction mechanisms will greatly improve molecular resistance breeding in crops, and thus contribute significantly to the decrement of chemical pesticides. Notably, great achievements have been made in elucidating the molecular mechanisms of plant immunity and microbial pathogenicity during the last decade, leading to the proposing of a few co-evolution models. These achievements enable novel strategies to tailor crops to be disease resistant by using bio-techniques. In this review, we highlight recent advancement of plant immunity, and suggest the directions for future research.