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The role of the plant nucleolus in pre-mRNA processing

J W S Brown1, P J Shaw

  • 1Plant Sciences Division, College of Life Sciences, University of Dundee at SCRI, Invergowrie, Dundee DD2 5DA, Scotland, UK. john.brown@scri.ac.uk

Current Topics in Microbiology and Immunology
|July 18, 2008
PubMed

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The nucleolus is the most prominent substructure of the nucleus. When it was first discovered, it was considered to be an isolated organelle that forms fibrils and granules. In 1931, the relationship between the nucleolus and chromosomes was first described by Heitz. He observed that the appearance and size of nucleolus varies depending on the stage of the cell cycle. He also noticed constricted regions on different chromosomes clustered together at definite cell cycle stages. These regions,...