Fig. 1: S. coelicolor spores are transported by B. subtilis.
From: Microbial hitchhiking: how Streptomyces spores are transported by motile soil bacteria

A When Sc and Bs are innoculated on the center of a swarm plate, visible Sc colonies (white dots) are apparent and are only dispersed in the presence of motile Bs. Left: Sc with Bs. Middle: Sc alone. Right: Bs alone. B When Sc and Bs are innoculated in different positions on swarm plates, the Sc colonies are dispersed in the swarming direction of the Bs cells (black arrows). Asterisks denote the Bs innoculation sites. C Bs moves spores toward plant tissues. Left: Sc with Bs. Middle: Sc alone. Right: Bs alone, asterisk denotes the Bs innoculation site.