1. Laboratoire Microorganismes et Biomolécules Actives, Université de Tunis El Manar (FST) & Université de Carthage (INSAT), 2092 Tunis, Tunisia
2. School of Biology, Newcastle University, Ridley Building, Newcastle upon Tyne, NE1 7RU, UK
3. Central Facility for Microscopy, HZI – Helmholtz Centre for Infection Research Inhoffenstraße 7, 38124 Braunschweig, Germany
4. Leibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, 38124 Braunschweig, Germany