Erwinia psidii

Erwinia psidii is a Gram-negative bacterium and a phytopathogen of the common guava (Psidium guajava), causing rot in branches, flowers and fruits. Recently,^[1] 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.

Erwinia psidii
Scientific classification
Domain:	Bacteria
Kingdom:	Pseudomonadati
Phylum:	Pseudomonadota
Class:	Gammaproteobacteria
Order:	Enterobacterales
Family:	Erwiniaceae
Genus:	Erwinia
Species:	E. psidii
Binomial name
Erwinia psidii Rodrigues Neto et al. 1988