首次报道一点红青枯病由茄青枯菌引起

摘要

Emilia sonchifolia bacterial wilt was severely occurred in the field in Guangxi, China. The pathogenic bac- terium was confirmed by Koch postulate. Then Polymerase chain reaction (PCR)amplification was conducted using 16s rDNA universal primers to identify the pathogenic bacterium. PCR products sequencing results showed the path- ogenic bacterium had 99% homology to Ralstonia solanacearum. This is the first report of E. sonchifolia wilt caused by R. solanacearum.%一点红青枯病在广西种植区严重发生.通过柯赫氏法则证实病原菌为细菌.用16s rDNA通用引物进行PCR鉴定,测序结果表明,PCR产物与茄青枯茵有99%的同源性.首次报道一点红青枯病由茄青枯菌引起.