Endophytic cold-tolerant pseudomonas aeruginosa strain EH7 and application thereof

The invention discloses an endogenous cold-tolerant pseudomonas aeruginosa strain EH7 and application thereof, and belongs to the technical field of microorganisms and biological control. The cold-resistant grass pseudomonas strain EH7 is preserved in the China Center for Type Culture Collection on February 13, 2023, and the preservation number of the cold-resistant grass pseudomonas strain EH7 is CCTCC NO: M 2023107. The EH7 strain can secrete endogenous auxin indoleacetic acid and has the effect of promoting plant growth. The strain also has a remarkable inhibition effect on the activity of ralstonia solanacearum and can be used for preventing and treating plant bacterial wilt caused by the ralstonia solanacearum, the effect of the EH7 strain for preventing and treating the bacterial wilt can reach 70%, and the EH7 strain is a biocontrol microbial agent with a good prevention and treatment effect and has application and development potential in prevention and treatment of tobacco bacterial wilt. 本发明公开了一株内生耐