Which medium is used for the recovery of saprobic and pathogenic fungi?

Which medium is used for the recovery of saprobic and pathogenic fungi?

• A. BHI Agar
• B. Mycosel Agar
• C. Dermatophyte Test Medium
• D. SABHI Agar

Answer: (A)

Culture-media selectivity and how it shapes fungal recovery is what this item tests. To recover a broad range of fungi—both saprobic organisms that thrive on decaying material and pathogenic fungi that cause disease—you need a non-selective, enriched medium that doesn’t inhibit fungal growth. Brain heart infusion agar provides abundant nutrients and lacks inhibitors, so it supports growth from a wide spectrum of fungi. This makes it a good initial choice to maximize recovery of different fungal types before you move on to more selective media for isolation and identification. In contrast, media like Mycosel contain inhibitors (such as cycloheximide) that suppress many saprophytic fungi, dermatophyte-focused media like Dermatophyte Test Medium are biased toward dermatophytes, and even SABHI agar, while useful, includes selective components that limit broad recovery. So the non-selective, enriched nature of brain heart infusion agar explains why it’s the best choice for recovering both saprobic and pathogenic fungi.

Culture-media selectivity and how it shapes fungal recovery is what this item tests. To recover a broad range of fungi—both saprobic organisms that thrive on decaying material and pathogenic fungi that cause disease—you need a non-selective, enriched medium that doesn’t inhibit fungal growth. Brain heart infusion agar provides abundant nutrients and lacks inhibitors, so it supports growth from a wide spectrum of fungi. This makes it a good initial choice to maximize recovery of different fungal types before you move on to more selective media for isolation and identification. In contrast, media like Mycosel contain inhibitors (such as cycloheximide) that suppress many saprophytic fungi, dermatophyte-focused media like Dermatophyte Test Medium are biased toward dermatophytes, and even SABHI agar, while useful, includes selective components that limit broad recovery. So the non-selective, enriched nature of brain heart infusion agar explains why it’s the best choice for recovering both saprobic and pathogenic fungi.