Diverse Fungal Media: Use The Right One
The gold standard for confirming a clinical diagnosis is based on the culture method. However, because of the fast and frequently antagonistic development of related fungus, bacteria, and actinomycetes with faster growth rates, the majority of fungi are challenging to isolate from infected tissues, contaminated soil, or decomposing organic material. Many of these fungi can be successfully isolated by using selective media that either block or slow down the growth of these antagonistic species.
Fungus can be grown in a variety of media. They need media with a rich source of carbohydrates and nitrogen and a pH range of 5 to 6 with a temperature range of 15 to 37˚C. The majority of laboratory physicians have preferences for particular medium types based on their expertise and the unique characteristics of the fungus they regularly grow. The morphology and colour of the colony, the formation of certain structures and the possibility of the fungus growing in culture are all influenced by the media.
Fungal culture has few limitations too, including the need for more subcultures and a prolonged incubation period. The growth of the pathogenic colony is removed from the primary plate and subsequently placed in selective conditions for biochemical and morphological differentiation.
As a result, choosing the appropriate culture media type based on clinical suspicion is crucial. Expanding our understanding of cultural media will undoubtedly aid in our deeper exploration of the fungal domain.
References
1. Basu S, Bose C, Ojha N, et al. Evolution of bacterial and fungal growth media. Bioinformation. 2015;11(4):182-184.
2. MacFaddin, J. Biochemical Tests for Identification of Medical Bacteria. 3rd ed. Lippincott Williams and Wilkins. Philadelphia,2000.
3. Forbes BA, Sahm DF, Weissfeld AS. Bailey and Scott’s diagnostic microbiology. 13th ed. St. Louis: Mosby, 2013.
4. Mackie and Mccartney “Practical medical Microbiology”21st edition, Churchill Livingstone.
5. Koneman EW, Allen SD, Janda WM, Schreckenberger PC, Winn WC. Color Atlas and Textbook of Diagnostic Micrbiology. 5th edition. New York: JB Lipincott; 1997:33-36.