1. Department of Microbiology and Immunology, University of Otago, Dunedin, New Zealand
2. Otago Micro and Nano Imaging, Electron Microscopy, University of Otago, Dunedin, New Zealand
3. IMG, Okinawa Institute of Science and Technology, Okinawa, Japan
4. Department of Chemical and Process Engineering Department, University of Canterbury, Christchurch, New Zealand