VI International symposium on actinomycete biology : Debrecen, Hungary 26–30 August 1985 Organised by the Hungarian National Organizing Committee. Topics include: Taxonomy, Morphology and Ultrastructure, Genetics; Biochemistry; Secondary Metabolites, Pathogenicity and Immunology, Ecology and Epidemiology and Industrial Applications. Advisory Committee: K.Schaal (FGR), F.Bojalil (Mexico), M.Mordarski (Poland), J.Serrano (Venezuela) and H.Praueser (GDR)