A typical presentation of microbiological laboratory findings makes use of tables to arrange knowledge. A desk designated as “Desk 5” seemingly accommodates observations and interpretations associated to the expansion of micro organism on MacConkey agar, a selective and differential tradition medium. This medium is often used to isolate and differentiate gram-negative micro organism, notably members of the Enterobacteriaceae household, based mostly on their capability to ferment lactose. The outcomes displayed in such a desk may embrace colony morphology (shade, dimension, form), lactose fermentation (indicated by a shade change within the agar), and presumptive identification of bacterial species. A hypothetical instance could be the remark of pink colonies, indicating lactose fermentation, suggestive of organisms like Escherichia coli, whereas colorless colonies recommend non-lactose fermenters corresponding to Salmonella species.
Organized presentation of those findings facilitates clear comparability between totally different bacterial samples or experimental circumstances. This contributes to correct and environment friendly identification of bacterial isolates, which is essential for analysis of infections, epidemiological research, and analysis in numerous fields like meals security and environmental microbiology. Traditionally, culture-based strategies, together with the usage of selective and differential media like MacConkey agar, have been important for understanding bacterial range and pathogenicity. These strategies stay invaluable instruments in trendy microbiology laboratories.
