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Structures of nucleolus and transcription sites of rRNA genes in rat liver cells

  • Wei Tao*
  • , Mingda Jiao
  • , Jie He
  • , Mengyuan He
  • , Shui Hao
  • *Corresponding author for this work
  • Northeast Normal University
  • Peking University

Research output: Contribution to journalArticlepeer-review

Abstract

We observed the ultrastructure of nucleolus in rat liver cells by conventional electron microscopy, and employed cytochemistry NAMA-Ur DNA specific stain method to analyze the distribution and position of nucleolar DNA in situ. The results showed that nucleolar DNA of rat liver cells comes from nucleolus-associated chromatin, and continuously extends in the dense fibrillar component (DFC) of nucleolus, localizes at the periphery of fibrillar center (FC) and in DFC. Furthermore, by employing anti-DNA/RNA hybrid antibodies, we directly and selectively labeled transcription sites of rRNA genes and testified that localization of transcription sites not only to DFC but also to the periphery of FC.

Original languageEnglish
Pages (from-to)302-309
Number of pages8
JournalScience in China, Series C: Life Sciences
Volume43
Issue number3
DOIs
StatePublished - Jun 2000
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Location of nucleolar DNA in situ
  • NAMA-Ur method
  • Nucleolus
  • Rat liver cell
  • Transcription sites of rRNA genes

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