Defined Minimal Growth of Escherichia coli: Culturing and maintenance of Escherichia coli and other enteric bacteria in a strictly defined medium with 2X M9 Salts, 2% glucose, thiamine, Mg2+, and Ca2+.

Auxotroph/Prototroph Selection: Screening genetic mutations using a defined carbon source (2% glucose) and thiamine (1 µg/mL) to assess biosynthetic requirements.

Plasmid Maintenance and Expression Studies: Controlled growth conditions for antibiotic selection and recombinant protein expression with reduced background metabolites.

Metabolic and Physiology Experiments: Growth curves, yield and acetate minimization, and carbon utilization studies in a defined salts medium.

Bacteriophage Work with Escherichia coli: Mg2+ (2 mM) and Ca2+ (0.2 mM) support efficient phage adsorption and plaque assays.

Antimicrobial Susceptibility Testing: MIC and growth inhibition assays in a chemically defined background to reduce media-derived variability.

Reporter and Fluorescence Assays: Low-autofluorescence, defined composition improves signal-to-background for fluorescent reporters in Escherichia coli.

Chemostat/Bioreactor Studies: Stable, reproducible feed and steady-state growth using a defined 2X M9-based formulation.

Carbon Source Dependence Studies: Phenotyping and selection based on glucose utilization and catabolite regulation.

Comparative Strain Evaluation: Benchmarking growth of lab and engineered Escherichia coli strains under consistent ionic (Mg2+/Ca2+) and vitamin (thiamine) conditions.