| German | German Kieselalge. Kettenförmige Kolonien. Mediane Lage des hantelförmigen Interphasekerns, Wanderung des Kerns zum Zellrand vor der Teilung, Bildung eines "Kernhügels", Kern- und Protoplastenteilung, Übergang der Tochterkerne in die Interphaseform. |
| English | English The centric planktonic diatom Lauderia borealis forms fragile, chain-like colonies, which easily fragment into single cells. The dumb-bell shaped nucleus is expanded centrally through the cell. Preceding cell division the nucleus moves to the margin of the cell, and contracts to form a nuclear hemisphere at the equator of the cell. After division of both the nucleus and the protoplast the daughter nuclei regain their normal dump-bell shape of the interphase. |
