| Erwinia psidii | |
|---|---|
Scientific classification 
| |
| Domain: | Bacteria |
| Phylum: | Pseudomonadota |
| Class: | Gammaproteobacteria |
| Order: | Enterobacterales |
| Family: | Erwiniaceae |
| Genus: | Erwinia |
| Species: |
E. psidii
|
| Binomial name | |
|
Erwinia psidii Rodrigues Neto et al. 1988
| |
Erwinia psidii is a Gram-negative bacterium and a phytopathogen of the common guava (Psidium guajava), causing rot in branches, flowers and fruits. Recently, it was demonstrated that this species produces two acyl homoserine lactones (S-(-)-N-hexanoyl- and N-heptanoyl-homoserine lactone), widely recognized bacterial quorum sensing signaling substances, and employed in bacterial cell-to-cell communication systems.