Characterization and assessment of two biocontrol bacteria against Pseudomonas syringae wilt in Solanum lycopersicum and its genetic responses

Autor: Byung-Taek Oh, Jung-Hee Park, Palaninaicker Senthilkumar, Kyung-Min Choi, Yool-Jin Park, Jeong-Ho Lee, Woo Suk Chang, Palanivel Velmurugan, Kaliannan Durairaj
Rok vydání: 2018
Předmět:
Zdroj: Microbiological Research. 206:43-49
ISSN: 0944-5013
DOI: 10.1016/j.micres.2017.09.003
Popis: Pseudomonas and Bacillus species are attractive due to their potential bio-control application against plant bacterial pathogens . Pseudomonas aeruginosa strain D4 and Bacillus stratosphericus strain FW3 were isolated from mine tailings in South Korea. In these potent bacterial strains, we observed improved antagonistic activity against Pseudomonas syringae DC3000. These strains produced biocatalysts for plant growth promotion, and in vivo examination of Solanum lycopersicum included analysis of disease severity, ion leakage, chlorophyll content, and H 2 O 2 detection. In addition, regulation of the defense genes pathogen-related protein 1a (PR1a) and phenylalanine ammonia lyase (PAL) was compared with treated plants and untreated control plants. The results suggest that these two bacterial strains provide protection against plant pathogens via direct and indirect modes of action and could be used as a bio-control agent.
Databáze: OpenAIRE