Bacterial Selection and Plasmid Maintenance: Selects and maintains plasmids carrying kanamycin resistance in transformed Escherichia coli and other bacteria.

Microbiology Media Supplement: Added to LB/agar and broth to enable growth of kanamycin-resistant clones and suppress susceptible contaminants.

Recombinant Protein Expression in Bacteria: Maintains expression vectors during shake-flask and bioreactor cultures of Escherichia coli.

Plant Transformation and Tissue Culture Selection: Selects transgenic plant cells expressing nptII during regeneration after Agrobacterium tumefaciens-mediated transformation.

Agrobacterium Plasmid Selection: Maintains binary and helper plasmids in Agrobacterium tumefaciens prior to plant transformation.

Cell Culture Contamination Control: Supplement for mammalian, insect, and plant cell culture media to reduce bacterial contamination.