Division of the primary nucleus ofAcetabularia |
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| Authors: | H. -U. Koop H. -H. Heunert R. Schmid |
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| Affiliation: | (1) Present address: Institut für Pflanzenphysiologie und Zellbiologie, Berlin;(2) Institut für den wissenschaftlichen Film, Göttingen, Germany |
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| Abstract: | Summary The division of the primary nucleus ofAcetabularia mediterranea, andAcetabularia cliftonii was studied by light microscopical observation of living cells. Nuclear and nucleolar volumes are reduced when the caps of the cells have reached their maximum diameter. When the nucleus has reached a size of about 30–50  m in diameter, condensed chromosomes are formed which are separated by an intranuclear spindle. |
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