It was identified as an especially useful gelling agent in culturing thermophilic microorganisms. Incubation times vary based upon the microbe that requires culturing. Together they were instrumental in developing agar as a medium for culturing microorganisms. Molecular biology allows scientists to understand a gene's function using microbial culturing and mutagenesis. Data obtained from microorganisms might establish processes for culturing in the future. Diagnosis of a yeast infection is done either via microscopic examination or culturing. It is suitable for culturing microbes, washing blots, and general mixing. Sodium acetate is used as the carbon source for culturing bacteria. Culturing highly responsive tissues or varieties. Nutritional yeast is produced by culturing a yeast in a nutrient medium for several days. Together they worked to develop methods of culturing tissue samples. In 1968, Meares and Stamey determined a classification technique based upon the culturing of bacteria. Initial isolates are slightly curved, whereas they can appear as straight rods upon laboratory culturing. In addition, other lactobacilli and bifidobacteria are sometimes added during or after culturing yogurt. Diagnosis is generally based on aspirating joint fluid and culturing it.