Reference

Wilhelm Foissner, B. Peukert, W.D. Krautgartner (2007): A unique association between bacteria and ciliates: silicious residues from food bacteria are the main component of the cyst wall of *Maryna umbrellata* (Ciliophora, Colpodea) – Protistology, Abstr. V Europ. Congr. Protistol. XI Europ. Conf. Ciliate Biol. – 5: 30.