Bacillus altitudinis GG-22: A novel plant growth-promoting bacterium with beneficial agronomic properties - PubMed
4 hours ago
- #Biocontrol
- #Bacillus altitudinis
- #Sustainable agriculture
- Bacillus altitudinis GG-22 is a novel plant growth-promoting bacterium isolated from agricultural crop phyllosphere.
- Whole-genome sequencing confirmed its classification and revealed genes for biocontrol mechanisms like siderophores, lipopeptides, and bacteriocins.
- In vitro assays showed significant inhibition against phytopathogenic fungi and oomycetes, with limited efficacy against bacterial pathogens like Xylella fastidiosa.
- Transcriptomic profiling indicated activation of auxin transport and systemic acquired resistance (SAR) pathways in treated olive trees.
- Downregulation of cell wall remodelling genes suggests GG-22 primes plant defence and modulates hormonal pathways for growth and stress resilience.
- Future research should focus on optimizing application strategies and exploring synergies with other microbial agents.
- Potential applications include sustainable agriculture, biocontrol of fungal diseases, and improving plant performance under stress.