Fig. 2.

Streptomyces globisporus SP6C4 has a multi‐host lifestyle colonizing strawberry plants and honeybees, which can serve as vectors for dispersal. 1. In the rhizosphere, S. globisporus SP6C4 protects the plant from soil‐borne diseases. 2. SP6C4 can potentially migrate from the rhizosphere to the flower. The bacteria protect the flower from fungal infection. Honeybees pollinate the plant and pick up the bacteria externally and by ingestion. 3. The bacteria protect honeybees from entomopathogens. The honeybee spreads the bacteria to new flowers while pollinating. 4. The honeybee facilitates exchange between the beehive and strawberry flowers. 5. Streptomyces globisporus migrates from the flowers to the rhizosphere. Grey arrows indicate speculative interactions for which the definite evidence is still lacking. Inlay: Diagram that indicates the nature of the interactions of the bacteria with the insect, the plant and soilborne pathogens. Green arrow, positive; red inhibition arrow, negative interactions.