Kluyveromyces is a genus of yeast that is commonly found in various environments, including soil, plants, and fermented foods. It is known for its ability to ferment sugars, making it important in the production of alcoholic beverages and bread. One of the most studied species within this genus is Kluyveromyces marxianus, which is used in industrial applications due to its efficient fermentation capabilities. This yeast can also utilize lactose, making it valuable in dairy industries for producing products like cheese and yogurt.