P225

P225 is a designation that can refer to several different things, most notably a specific type of bacterium and a Sig Sauer pistol. The bacterium *Pseudomonas aeruginosa* strain P225 is a well-studied isolate of this common opportunistic pathogen. Researchers have utilized this particular strain in various experiments to understand its virulence factors, antibiotic resistance mechanisms, and interactions with host cells. Its genetic makeup and phenotypic characteristics have been documented, making it a reference point in microbiological research.

Alternatively, P225 is also the model number for a firearm manufactured by Sig Sauer. The Sig Sauer P225 pistol is a single-action/double-action semi-automatic handgun. It was originally designed for the French military and police forces in the early 1980s, known for its compact size and reliability. This pistol is chambered in 9x19mm Parabellum and features a distinct all-metal construction. Over the years, Sig Sauer has produced variations and updated versions of this firearm, often catering to law enforcement and civilian markets. The P225 is recognized for its trigger quality and accuracy.