Identification of a novel signal for activation of Ti plasmid- encoded vir genes from rice (Oryza sativa L.)  

作　　者：施骏 许耀 刘吉开 尹中朝 李宝健 

机构地区：[1]Amway (China) Co.Limited [2]The Salk Institute.USA [3]Biotechnology Research Center, Zhongshan University [4]Guangzhou 510275, China

出　　处：《Chinese Science Bulletin》1995年第21期1824-1828,共5页

基　　金：the National Natural Science Foundation of China.

摘　　要：Virulence (vir) genes of Ti plasmids code for a specialized conjugation system that mediates the mobilization and transfer of T-DNA from Agrobacterium to the genome of higher plants. This system is activated by a number of plant-specific phenolics, well characterized in dicots, via a two-component regulatory system. In contrast, little is known about the occurrence of vir-inducing signals in monocots, especially in the cereal crops.We have examined the effects of exudates and extracts from various rice tissues at

关 键 词：RICE SIGNAL molecule AGROBACTERIUM tumefaaences Ti PLASMID virulence. 

分 类 号：Q75[生物学—分子生物学]