Auxotrophy/Prototrophy Screening: Identify nutrient requirements and select prototrophic revertants of Escherichia coli and other minimal medium-competent strains.

Auxotrophic Complementation Selection: Maintain/select plasmids or genomic integrations that complement metabolic defects in Escherichia coli on defined glucose minimal agar.

Carbon Source Utilization Assays: Assess growth and metabolism under defined conditions (glucose-based), or with alternative carbon sources, in strains such as Escherichia coli and Pseudomonas putida.

Metabolic and Gene Knockout Phenotyping: Characterize effects of pathway deletions on growth and fitness in defined media.

Colony Isolation and CFU Enumeration: Obtain isolated colonies and quantify viable counts under controlled, minimal conditions.

Adaptive Laboratory Evolution (ALE): Evolve strains like Escherichia coli or Salmonella enterica under defined nutrient limitations.

Antibiotic Susceptibility in Defined Media: Evaluate antimicrobial effects without confounding rich-medium components.

Catabolite Repression and Diauxic Growth Studies: Probe regulatory responses to defined glucose availability.