I grew and handled four serotypes of L. monocytogenes. I performed conjugation and electroporation to insert a green fluorescent protein marker (GFP) gene. I visualized GFP gene uptake using PCR sequencing and Gel electrophoresis. I adhered to lab safety standards and practices for correct use and disposal of ethidium bromide. I grew Salmonella typhimurium strains on pistachios to investigate its ability to grow in low moisture environments. I transferred and confirmed S. tuphimurium isolation on agar media using spot plating. I prepared samples for sequencing using PCR and restriction digests in order to confirm the specific missing gene.