How does Candida albicans interact with bacterial community in oral biofilms?

How does Candida albicans interact with bacterial community in oral biofilms?

• A. It competes with bacteria reducing biofilm
• B. It is neutral
• C. It co-aggregates with bacteria and forms mixed-species biofilms that enhance virulence
• D. It only forms biofilms alone

Answer: (C)

In oral biofilms, microbes don’t act in isolation. Candida albicans often interacts with bacteria, attaching to bacterial cells and to the shared extracellular matrix. This co-aggregation lets fungi become embedded within a bacterial biofilm, creating mixed-species communities. The fungi and bacteria can support each other’s growth and architecture, with Candida forming hyphal networks that intertwine with bacterial cells and with partners that act as bridges between early and late colonizers. These interactions typically increase the overall biofilm biomass, create a more robust matrix, and enhance virulence and resistance to antimicrobial defenses and host clearance. That combination—Candida aligning with bacteria to build a thicker, more virulent biofilm—is why the best answer notes co-aggregation and mixed-species biofilm formation that boost virulence.

In oral biofilms, microbes don’t act in isolation. Candida albicans often interacts with bacteria, attaching to bacterial cells and to the shared extracellular matrix. This co-aggregation lets fungi become embedded within a bacterial biofilm, creating mixed-species communities. The fungi and bacteria can support each other’s growth and architecture, with Candida forming hyphal networks that intertwine with bacterial cells and with partners that act as bridges between early and late colonizers. These interactions typically increase the overall biofilm biomass, create a more robust matrix, and enhance virulence and resistance to antimicrobial defenses and host clearance. That combination—Candida aligning with bacteria to build a thicker, more virulent biofilm—is why the best answer notes co-aggregation and mixed-species biofilm formation that boost virulence.