One of the functions of spores is to spread organism through the air to distribute the organism geographically. Spores survive well in the air because they have several important adaptations. U.V. light is a potent carcinogen for us humans and is deadly to unprotected microbes. Spores that are resistant to U.V. have dark colored pigments that filter out harmful rays - in much the same way that dark glasses protect our eyes from sunburn. Many bacteria form spores as a way to resist harsh conditions such as too little food or water, or excessive heat.
Bacterial spores are most prevalent in spring and fall.
This bacterium produces a single spore. Slime Mold Spores Spores and Threads Springy fibers acts as microscopic slingshots to hurl these slime mold spores aloft. Slime Mold Spores Fungal Spores Most airborne spores are from fungi. Many fungi have adaptations that allow them to shoot their spores into the air so that they may be dispersed a long way. Fungal spores appear to be most abundant in June, July and August.