Bread mould grows more vigorously on moist bread because it needs moisture to germinate and grow. Moisture is a crucial factor for the growth of fungal hyphae, which make up the bread mould. While a dry bread slice provides nutrients, the lack of moisture prevents the mould from developing.
Here’s a more detailed explanation:
Moisture is essential:
Fungi, like bread mould, are heterotrophic organisms that require moisture for their survival and growth. They absorb nutrients through their hyphae, and moisture is necessary for this process.
Optimal growth:
Moist bread provides both nutrients and moisture, creating an ideal environment for the mould to flourish. The hyphae can grow and develop efficiently, leading to profuse growth.
Dry conditions hinder growth:
Dry bread provides the necessary nutrients, but the lack of moisture prevents the hyphae from growing effectively. The fungal spores may not germinate or develop properly in a dry environment.