Geotrichum candidum

Geotrichum candidum is a species of fungus in the family Diphyllobothriidae. It is commonly found in soil, water, air, and as part of the normal microbiota of humans and animals. G. candidum is known for its role in the dairy industry and its potential as an opportunistic pathogen.

Morphology

Geotrichum candidum under a microscope

Geotrichum candidum is characterized by its white, creamy colonies that can appear on various substrates. Microscopically, it forms septate hyphae that fragment into chains of rectangular arthroconidia. These arthroconidia are the primary means of reproduction for G. candidum.

Ecology

Geotrichum candidum is widely distributed in nature. It can be isolated from soil, decaying organic matter, and various food products. It plays a significant role in the ripening of certain cheeses, contributing to the development of flavor and texture.

Industrial Applications

In the dairy industry, G. candidum is used as a starter culture in the production of cheeses such as Camembert and Brie. It helps in the breakdown of lactose and proteins, enhancing the organoleptic properties of the cheese.

Pathogenicity

While generally considered non-pathogenic, Geotrichum candidum can act as an opportunistic pathogen, particularly in immunocompromised individuals. It can cause geotrichosis, a rare infection that may affect the lungs, skin, or gastrointestinal tract.

Prevention and Control

In clinical settings, preventing infections caused by G. candidum involves maintaining good hygiene and sanitation practices. In the food industry, controlling the growth of G. candidum is essential to prevent spoilage and ensure product quality.

Related pages

• Fungi
• Cheese production
• Opportunistic infections