Response of interphasic nucleoli to hypoxia in root meristems
- 1 August 1985
- journal article
- Published by Wiley in Cell Biology International Reports
- Vol. 9 (8) , 699-708
- https://doi.org/10.1016/0309-1651(85)90077-3
Abstract
Hypoxia produces structural changes in interphasic nucleoli of Allium cepa L. root meristems. Following segregation, the fibrillar portion of nucleoli seems to be extruded in masses, accessory bodies, which stay in nucleoplasm. Such bodies apparently leave the fibrillar portion in places which seem to correspond to insertion areas of the nucleolar organizers in nucleoli. Reversal of these changes is rapidly obtained when oxygenation is restored. Accesory bodies differ from prenucleolar bodies since they are compact and homogeneous and they do not display segregation under hypoxia.Keywords
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