Methyl gallate from Camellia nitidissima Chi flowers reduces quorum sensing related virulence and biofilm formation against Aeromonas hydrophila .
Huan JiangZhennan WangAi-Qun JiaPublished in: Biofouling (2024)
Aeromonas hydrophila , a Gram-negative zoonotic bacterium, causes high mortality in fish farming and immunocompromised patients. This study aimed to extract methyl gallate (MG) from the flowers of Camellia nitidissima Chi and evaluate its potential as a quorum sensing inhibitor (QSI) against Aeromonas hydrophila SHAe 115. MG reduced QS-associated virulence factors, including hemolysis, protease, and lipase, while impairing swimming motility and biofilm formation. Additionally, MG down-regulated positive regulatory genes ( ahyR , fleQ ) and up-regulated negative regulators ( litR , fleN ). This highlights MG's promise as a potent QSI for A. hydrophila SHAe 115, advancing strategies against infections in aquaculture and human health.
Keyphrases
- biofilm formation
- pseudomonas aeruginosa
- staphylococcus aureus
- gram negative
- candida albicans
- human health
- escherichia coli
- transcription factor
- multidrug resistant
- risk assessment
- end stage renal disease
- ejection fraction
- newly diagnosed
- chronic kidney disease
- cystic fibrosis
- climate change
- prognostic factors
- oxidative stress
- type diabetes
- cardiovascular events
- gene expression
- machine learning
- risk factors
- peritoneal dialysis
- red blood cell
- genome wide identification
- patient reported outcomes
- extracorporeal membrane oxygenation
- coronary artery disease
- artificial intelligence
- deep learning
- respiratory failure
- bioinformatics analysis
- mechanical ventilation