Proteomic Analysis of a Leaf Spot Pathogen, Xanthomonas euvesicatoria pv. euvesicatoria 173 upon Sublethal Dose of Cinnamon Essential Oil.

ABSTRACT: Cinnamon essential oil (CEO) exhibits antimicrobial activity in a dose-dependent manner, offering potential for controlling plant bacterial diseases. This study investigated the effects of CEO on Xanthomonas euvesicatoria pv. euvesicatoria 173, the causal agent of pepper bacterial spot disease. Treatment with an EC50 dose of CEO significantly altered bacterial culturability and protein expression profiles. Proteomic analyses revealed that, relative to untreated control, a TonB-dependent receptor and a Clp protease were upregulated, and ATP-binding cassette transporter proteins were downregulated in the CEO-exposed X. euvesicatoria. Quantitative real-time PCR confirmed that TonB and Clp proteases abundance positively correlated with transcriptional upregulation of their corresponding genes.

SUBMITTER: Nam HS 

PROVIDER: S-EPMC12488381 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature