First report of Pseudomonas aeruginosa causing tumor disease of Populus koreana in China

In May 2018, a bacterial tumor disease was observed on Populus koreana in Shuangyang county, Changchun city, Jilin Province. Based on physiological characteristics, Biolog and genetic sequences analysis, the bacterium was identified as Pseudomonas aeruginosa. The pathogenicity was verified with Koch’s postulates. To our knowledge, this is the first report of tumor disease caused by P. aeruginosa on P. koreana.