CRISPR-Cas9 phage engineering of PaGZ-1

This is the CRISPR-Cas9-based engineering approach used to modify the P. aeruginosa phage PaGZ-1 so it expresses biofilm-disrupting genes. The abstract frames it as a method for introducing exogenous genes into non-model phage genomes.

It requires CRISPR-Cas9 editing components, the PaGZ-1 phage genome context, and the desired inserted gene such as Aiia or a depolymerase. The abstract does not specify the exact editing reagents or protocol details.

It solves the practical problem of genetically modifying a non-model P. aeruginosa phage to add new anti-biofilm functions. This enables construction of engineered phages with enhanced activity.

The abstract does not show that the method generalizes to all phages or that it avoids all fitness costs. It also does not provide detailed performance benchmarks for the editing workflow.

Within the provided source, no direct alternative editing platform is experimentally compared. The unengineered wild-type phage serves as the functional comparator for the resulting constructs.