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Fungi spores grow on moist surfaces.

Some fungi require lots of moisture on a growth surface, other requires less moisture, but they all require moisture. Most homes are not moist enough for mold and that is why most homes are not over run by mold growth.

Molds that require lots of moisture are known as hydrophilic fungi. Chaetomium Fusarium, and Stachybotrys are just three hydrophilic fungi.

Other require moderate amounts of moisture, these are known as mesophilic fungi, Many common species of Penicilliumm Aspergillius, and Cladosporium fit into thig group.

Others require only the moisture found in humid environment and do not even require a leak. These are known as xerophilic fungi. Moisture from the humid air enters surfaces, and these xerophilic humidity loving molds grows on these surfaces. Penicillium chrysogenum seems to be mesophylic at times and grows around leaks, often it will act more xerophilic and grow in humid environments.

Fungi do not require warmth as many people like to report, If you do not believe me go dig through the vegetable crisper of your cold refrigerator and you will likely find some moldy food sooner or later. Molds require suitable temperatures some where above freezing and below very high intolerable temperatures will do just fine.

They also require food, but when you are a fungal spore a speck of dust or grain of dirt on a otherwise inorganic nutrient poor surface may be all the food you will need.

In summary fungi require moisture, this is what is lacking and what needs to be added for spores to grow into mold.

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11y ago

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