Evaluation of biocontrol efficacy of rhizosphere Pseudomonas aeruginosa for management of Phytophthora capsici of pepper

• DOI: 10.1371/journal.pone.0309705
• Publication Date: 2024-09-20T17:34:56Z
• Authors: Chenzhen Li; Xianghui Gao; Yunfeng Huo; Tahani A. Y. Asseri; Xueliang Tian; Kun Luo
• Keywords: Phytophthora capsici; Oomycete; Root rot

A significant population of biocontrol microorganisms resides in the rhizosphere plants, which can be utilized for plant disease control. To explore potential soil as agents against pepper blight, a bacterial strain Pa608 was screened from and identified Pseudomonas aeruginosa through morphological characteristics 16S rRNA sequences. The result showed that demonstrated antagonistic activity Phytophthora capsici , effectively suppressing mycelial growth. potted experiment high control efficacy 88.0%. Remarkably, also reduced index blight field, resulting efficiencies 74.9%. Moreover, enhanced height yield. GC-MS analysis revealed production numerous secondary metabolites by Pa608, with α-pinene displaying potent anti-oomycete inhibiting P . In conclusion, exhibited management cultivation.