植物抗蚜生理及分子机制的研究进展

蚜虫作为农业害虫和植物病毒的传播者,已经成为严重威胁全球农业生产发展的主要害虫之一。本文综述了植物宿主免疫系统在抗蚜过程中的作用,从物理屏障、化感元素以及基因调控等方面阐述目前的抗蚜应答机理研究,提出了抗蚜研究应该整体地考虑植物-蚜虫互作动态体系,抗蚜基因的挖掘应该建立在有效性和持久性双重标准上,培育抗蚜新品种应考虑蚜虫效应因子与植物的基因间互作以及植物NBS-LRR抗病基因家族可能参与抗蚜免疫反应等观点,以期为揭示植物-蚜虫之间相互作用的分子机制,探索在生产实践中绿色、生态的蚜虫防治新方法提供理论依据。

Advances in physiological and molecular mechanisms of plant resistance to aphids

Aphid is an agricultural pest and plant virus transmission vector, which has become a serious threat to the development of agricultural production. In this study, we summarized the function of the immune system in the host plant resistance to aphids in terms of physical barrier, allelopathic elements and gene regulation to elucidate the aphid resistance mechanisms. Some proposals were presented in this paper as follows: (1) Research should consider the overall plant-aphid interactive dynamic system; (2) exploring the aphid resistance genes should be based on the standards of effectiveness and persistence; (3) breeding new varieties should think over the aphid effectors controlled by plant genes, and (4) NBS-LRR gene family may be involved in the anti-aphid immune response. This paper would provide a new theoretical basis for further understanding the molecular mechanism of the interaction between plant and aphid and the management of aphids using green and ecological method.