Biology and enzymology of oxic/anoxic respiration

Oliver Einsle (University of Freiburg)

Jim Shapleigh (Cornell, USA)

David Richardson and Andrew Gates (University of East Anglia, UK)

Rosa María Martínez-Espinosa (University of Alicante, Spain)

Stephen Spiro (University of Texas, Dallas)

Jeff Cole (University of Birmingham)

Rob van Spanning (Vrije Universiteit, Amsterdam)

Mark van Loosdrecht (Technical University of Delft)

Jörg Simon (Technical University of Darmstadt)

Nitrification:
Jim Prosser (School of Biological Sciences, University of Aberdeen)

Modelling 

Olaf Ippisch (Institut für Mathematik, TU Clausthal)

Frank Bruggeman (VU University, Amsterdam)

Soils and microbial communities

Sergio Morales (Ottago University, New zealand)

Nitrogen fixation
Kristina Lindström and Leena A. Räsänen (University of Helsinki, Finland)