M9 agar plates are a defined, minimal solid growth medium composed of M9 salts, agar, and a carbon source such as glucose. Unlike rich media, M9 agar provides essential inorganic salts and nutrients, allowing precise control over bacterial growth conditions and metabolic inputs.

M9 agar plates are commonly used for cultivating E. coli and other non-fastidious bacteria in applications including metabolic and physiological studies, auxotrophic strain analysis, and genetic screening or selection. Because M9 agar is a minimal medium, it is particularly valuable for experiments that require controlled nutrient composition or selective growth based on metabolic capability.

M9 agar plates may be supplemented with defined carbon sources, amino acids, vitamins, or antibiotics to support your specific workflow or experimental objectives.

Our M9 agar plates are supplied as ready-to-use pre-poured plates, eliminating in-house media preparation and reducing variability. Formulated as a defined, minimal medium, our M9 agar plates provide controlled growth conditions and are well-suited for studying bacterial metabolism, selection, and physiology. The plates can also be supplemented with carbon sources, amino acids, or antibiotics to support specific experimental needs.

We manufacture all our M9 agar plates using validated processes and rigorous quality control to ensure growth performance and lot-to-lot consistency. In addition to our extensive catalog of ready-to-ship products, we provide industry-leading turnaround times for custom manufacturing, with custom options including modified M9 formulations, alternative carbon sources, antibiotic combinations, and plate formats to support specialized microbiology workflows.