Hitchhikers on the fungal highway: The helper effect for bacterial migration via fungal hyphae

► We addressed the basis of the community migration on fungal hyphae. ► The migration helper effect exerted by particular migrators on the community was studied. ► We used, as a model, the migration-proficient Burkholderia terrae BS001 as helper strain. ► Dyella japonica BS003, was identified as a comigrator with B. terrae BS001. ► We postulate a role for biofilm formation in the migration helper effect.