Microbial 'gardening' by a seaweed holobiont: Surface metabolites attract protective and deter pathogenic epibacterial settlement

摘要

1. Epimicrobial communities on seaweed surfaces usually contain not only potentially pathogenic but also potentially beneficial micro-organisms. Capacity of terrestrial plants for chemically mediated recruitment, that is, "gardening" of bacterial communities in the rhizosphere was recently demonstrated. Empirical evidence directly linking such chemical "gardening" with the beneficial role of gardened microbes in terrestrial plants is rare and largely missing for aquatic macrophytes.