Mini-review: Microbial coaggregation: ubiquity and implications for biofilm development

Area of Science:

• Microbiology
• Ecology
• Biofilm Science

Background:

• Biofilms are complex, polymicrobial communities where microorganisms interact.
• Coaggregation, the specific adherence of genetically distinct microbes, is a key interaction in biofilms.
• Current understanding of coaggregation mechanisms and ecological relevance is limited.

Purpose of the Study:

• To review recent advancements in understanding microbial coaggregation across diverse environments.
• To explore the ecological implications of coaggregation in biofilm formation and composition.
• To highlight key microbial species involved in coaggregation, such as oral streptococci, fusobacteria, sphingomonads, and acinetobacters.

Main Methods:

• Literature review of recent studies on microbial coaggregation.
• Analysis of coaggregation mechanisms in various environmental settings.
• Identification of prominent coaggregating bacterial species and their roles.

Main Results:

• Coaggregation is proposed as essential for the structured development of multi-species biofilms.
• Specific examples of coaggregating bacteria from oral and freshwater environments are discussed.
• Advances in understanding the molecular and ecological aspects of coaggregation are presented.

Conclusions:

• Coaggregation plays a fundamental role in the spatial organization and community structure of biofilms.
• Further research into coaggregation mechanisms is vital for understanding biofilm ecology.
• Coaggregation is a conserved process critical for biofilm development across different ecosystems.