Detailed Listing of reports; Foreword; 1. Microbial energy conversion and conservation; 2. Structure and control of bacterial redox systems and ion-pumps; 3. Structural aspects, conformation and topography of bioenergetic systems; 4. Structural organisation of oligomeric complexes in energy transducing membranes; 5. Relation of structure and function in bioenergetic systems; 6. Genetic and evolutionary aspects of bioenergetic systems; 7. Biogenesis of bioenergetic systems; 8. Catalytic site mechanisms in energytransduction; 9. Mechanism and regulation of ATP-Synthase; 10. Mechanism of electron transport.