Cytophaga-Flavobacterium-Bacteroides (CFB)

Definition

Cytophaga-Flavobacterium-Bacteroides (CFB) are a group of Gram-negative, rod-shaped bacteria that play significant roles in the degradation of organic matter in various environments. These bacteria are commonly found in soil, freshwater, and marine ecosystems.

5 Must Know Facts For Your Next Test

1. Cytophaga species are known for their ability to degrade complex polysaccharides such as cellulose and chitin.
2. Flavobacterium species are important in aquatic environments where they degrade organic matter and contribute to nutrient cycling.
3. Bacteroides are primarily found in the human gut microbiome, where they help in the digestion of complex molecules like polysaccharides.
4. CFB bacteria exhibit gliding motility, which allows them to move across surfaces without flagella.
5. These bacteria can form biofilms, which provide a protective environment enabling them to survive harsh conditions.

Review Questions

• What types of environments are CFB bacteria commonly found in?
• How do Cytophaga species contribute to the degradation of organic matter?
• What role do Bacteroides play in the human gut microbiome?

Related terms

Biofilm:

A structured community of bacterial cells surrounded by a self-produced polymeric matrix attached to an inert or living surface.

Polysaccharide: A carbohydrate molecule composed of long chains of monosaccharide units bound together by glycosidic linkages.

Gliding Motility:

A type of bacterial movement that allows cells to move smoothly over surfaces without the use of flagella.