Original paper

Cell structure of a planktic cyanoprokaryote, Tychonema bourrellyi

Komárek, Jiří; Albertano, Patrizia

Abstract

Tychonema bourrellyi represents a special planktic type of oscillatorialean cyanoprokaryote of North European lakes. Its ultrastructure, namely, the type, arrangement and keritomic organization of thylakoids, intrathylakoidal spaces and pseudovacuolization, is specific. AIl these characters are evidently connected with a special buoyancy strategy of the species. The gas vesicles are always lacking.

Keywords

Cyanoprokaryotes • cyanophytes • cyanobacteria • Tychonema plankton • ultrastructure • thylakoid pattern