果实采后响应病原菌侵染的生理生化及分子机制研究进展

果实采后易发生品质劣变,造成经济损失。而病原菌是导致果实采摘后品质劣变的主要原因之一。目前针对果实采后病害损失的研究主要集中于病原菌的致病机理,对于病原菌侵染后果实自身产生的抗性响应鲜有报道。本文综述了果实采后响应病原菌侵染的生理生化及其分子机制,包括病原菌侵染对果实细胞结构、果实防御酶系统的影响和果实代谢产物在抗病中的作用,探讨了果实抗病基因的研究概况,从生理生化和分子机制深入研究采摘后果实被病原菌侵染后的应答反应,为研发果实保鲜新技术提供参考。

Research Progress on Physiological, Biochemical and Molecular Mechanisms of Postharvest Fruit in Response to Pathogen Infection

The quality of postharvest fruit is susceptible to deteriorate, resulting in economic losses, and the disease caused by pathogen is one of the main reasons for the deterioration of postharvest fruit quality. At present, the research on postharvest disease loss of fruit is mainly focused on the pathogenic mechanism of pathogens, although few has been reported on the resistance response of fruits after infected by pathogens. In this paper, the physiological, biochemical, and molecular mechanisms of postharvest response to pathogen infection were reviewed, including the effects of pathogen infection on fruit cell structure, fruit defense enzyme system and the role of fruit metabolites in disease resistance. The research status of fruit disease resistance genes was also discussed. The response of harvested fruits that were infected by pathogens was deeply reviewed from the physiological, biochemical and molecular mechanisms, which laid the foundation for the research and development of new techniques of fruit preservation.