Classification of Pseudomonas:
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Gammaproteobacteria
Order: Pseudomonadales
Family: Pseudomonadaceae
Genus: Pseudomonas
Characteristic features:
1. Majority of these are involved in biofilm formation associated with the production of exopolysaccharides which makes it difficult for mammalian WBCs to phagocytose pseudomonads.
2. They are quite resistant to antibiotics such as penicillin and related beta-lactum antibiotics.