Résumé
Tritiated α-amanitin has been used as a specific and sensitive probe to estimate the number of RNA polymerase B molecules in isolated nuclei, chromatin and nucleoids, obtained from macroplasmodia of Physarum polycephalum. During mitosis (metaphase±10 min) there is at least 10-fold less RNA polymerase B than at all phases of the cell cycle, even if DNA replication has been blocked in vivo. It is concluded that many of the RNA polymerase B molecules leave the chromatin during decondensation of the chromosomes in telophase of the synchronous nuclear division of Physarum.
langue originale | Anglais |
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Pages (de - à) | 165-169 |
Nombre de pages | 5 |
journal | Wilhelm Roux's Archives of Developmental Biology |
Volume | 189 |
Numéro de publication | 3 |
Les DOIs | |
état | Publié - 1 oct. 1980 |
Modification externe | Oui |