植物嫁接体接口愈合机制的研究进展

Research advances on mechanism of interface healing of plant grafting

嫁接效率的提高依赖于嫁接体接口的愈合速率,接口愈合涉及创伤反应、生理生化过程、细胞和组织分化、砧木和接穗间信号交流和维管束重连过程。明确愈合过程的机制,不仅对维管系统发育研究具有重要的理论参考价值,而且对嫁接苗生产具有一定技术指导意义。本文简要概述了嫁接体接口的解剖结构、愈合过程、影响嫁接体接口愈合的因素,着重讨论了接口愈合的生理生化特征及相关的分子机制,并展望了将来嫁接接口愈合的研究方向。

Grafting efficiency depends on rate of graft union healing. Wounding response,physiological and biological process,cell and organ differentiation,signal communication between scion and rootstock,connection in vascular system are involved in this complicated healing process. If elucidate molecular mechanism of vascular connection clearly,it would be an important theoretical value,and produce a technological guide in grafted seedling production. In this paper,the research advances on anatomic structure,healing process,physiology and biology characteristic and relative molecular mechanism were presented,and looking forward to the research direction of graft union healing,in order to provide references for further in-depth studies of grafting mechanism and associated application.