French cheese production, specifically Camembert and Roquefort, is under threat due to the depletion of specific strains of fungus used in their production, according to researchers from the National Center for Scientific Research (CNRS). The strains, Penicillium camemberti and Penicillium roqueforti, are becoming infertile and depleting due to lack of genetic diversity. The researchers suggest cross-breeding these organisms with other species to maintain cheese production, but this could alter the cheeses' flavor, texture, and color. However, a third strain could potentially revitalize the blue cheese sector.