Progress and future directions for seaweed holobiont research.

Area of Science:

• Marine Biology
• Microbial Ecology
• Symbiosis Research

Background:

• Seaweeds (marine macroalgae) provide vital ecological and economic services.
• These services depend on associated microbial communities, forming the seaweed holobiont.
• Current understanding of seaweed-microbe interactions and their evolution is limited.

Purpose of the Study:

• Identify research challenges and opportunities in seaweed holobiont biology.
• Highlight knowledge gaps regarding microbial partners, recruitment, and function.
• Discuss future research directions and applications of the holobiont concept.

Main Methods:

• Literature review and synthesis of current research.
• Identification of key knowledge gaps in seaweed holobiont studies.
• Discussion of emerging methodologies and conceptual frameworks.

Main Results:

• Significant gaps exist in understanding microbial partner identification, recruitment mechanisms, and functional roles.
• The importance of these interactions across seaweed life stages requires further investigation.
• Environmental challenges necessitate a deeper understanding of seaweed holobiont resilience.

Conclusions:

• Addressing knowledge gaps in seaweed holobiont biology is critical for conservation.
• Future research should focus on identifying key microbes and their functions.
• The holobiont concept offers valuable insights for managing seaweed ecosystems.