ArticleChromosoma1995
Subnucleolar location of fibrillarin and variation in its levels during the cell cycle and during differentiation of plant cells.
Article in Chromosoma, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 43 citations in OpenAlex.
- Identification of Fibrillarin and Cajal Bodies Under DNA Replication Stress Conditions in Root Meristem Cells ofInternational journal of molecular sciences · 2025Article
- Nucleolin modulates compartmentalization and dynamics of histone 2B-ECFP in the nucleolus.Nucleus (Austin, Tex.) · 2018Article
- Novel Ribonuclease Activity Differs between Fibrillarins fromFrontiers in plant science · 2017Article
- Knockdown of the Drosophila GTPase nucleostemin 1 impairs large ribosomal subunit biogenesis, cell growth, and midgut precursor cell maintenance.Molecular biology of the cell · 2009Article
- Immunodetection of nucleolar proteins and ultrastructure of nucleoli of soybean root meristematic cells treated with chilling stress and after recovery.Protoplasma · 2009Article
- Molecular cloning and gene expression of a fibrillarin homolog of tobacco BY-2 cells.Protoplasma · 2006Article
- Subnucleolar location of fibrillarin and NopA64 in Lepidium sativum root meristematic cells is changed in altered gravity.Protoplasma · 2006Article
- The nucleolar structure and the activity of NopA100, a nucleolin-like protein, during the cell cycle in proliferating plant cells.Histochemistry and cell biology · 2006Article
- Dedifferentiation of tobacco cells is associated with ribosomal RNA gene hypomethylation, increased transcription, and chromatin alterations.Plant physiology · 2005Article
- Dribble, the Drosophila KRR1p homologue, is involved in rRNA processing.Molecular biology of the cell · 2001Article
- Molecular cloning and targeting of a fibrillarin homolog from Arabidopsis.Plant physiology · 2000Article
- Analysis of nucleolar transcription and processing domains and pre-rRNA movements by in situ hybridization.Chromosoma · 1997Article
- Review
- Structural changes in oocyte nucleoli of Xenopus laevis during oogenesis and meiotic maturation.Chromosoma · 1996Article
- Identification of a 67 kDa protein that binds specifically to the pre-rRNA primary processing site in a higher plant.Nucleic acids research · 1995Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The nucleolar protein fibrillarin has been studied in onion cells; it is detected as an M(r) 37,000 protein by immunoblotting using a human autoimmune serum. Quantitative immunoelectron microscopy showed that most fibrillarin is localized in the transition zone between the fibrillar center (FC) and the dense fibrillar component (DFC) as well as in the proximal zone of the DFC, where the labeling shows a gradual decrease outward until it reaches insignificant levels in the distal zone of the DFC. Thus, fibrillarin is not uniformly distributed throughout the DFC of plant cells. This result supports the hypothesis that the morphologically homogeneous DFC may not be uniform in function; it is also in agreement with the hypothesized vectorial flow of ribosome biogenesis through the same compartments. Data are also presented showing that the amount of fibrillarin increases when nucleolar activity increases in G2, and probably decreases when nucleolar activity decreases during differentiation.
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