Symbiotic interactions and climate change implications of the octocoral microbiome.

Microbial communities in octocorals show group-specific functions and are crucial for nutrient cycling, influencing host health and resilience under climate change stressors.

• Why it matters: Understanding octocoral microbiomes is essential because they may drive ecological resilience amid increasing environmental pressures from climate change, yet knowledge gaps hinder conservation efforts.
• What they did: The study conducted a meta-analysis of 79 bacterial genomes from octocorals, revealing functional specialization and highlighting biases in current sampling toward certain regions and host states.
• The result: Findings suggest that microbial interactions support nutrient exchange and resilience, guiding future research to fill gaps and improve predictions of octocoral responses to environmental change.