satellitism

satellitism

 [sat´ĕ-li-tizm] the phenomenon in which certain bacterial species grow more vigorously in the immediate vicinity of colonies of other unrelated species, owing to the production of an essential metabolite by the latter species.

sa·tel·li·tism

(sa-tel-līt'ism), A state of being physiologically secondary to another system or organ, or dependent upon it in some way.