Further investigations on the functional role of two nuclear bodies in onion cells
Martín, M. ; Espina, S. Moreno Díaz ; Jiménez-García, L. F. ; Fernández-Gómez, M. E. ; Medina, F. J.
Springer
Published 1992
Springer
Published 1992
| ISSN: |
1615-6102
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|---|---|
| Keywords: |
Centromeric structures ; Nuclear bodies ; Plant cells ; RNA processing ; Silver staining-nucleolus organizer proteins
|
| Source: |
Springer Online Journal Archives 1860-2000
|
| Topics: |
Biology
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| Notes: |
Summary “Micropuffs” and coiled bodies are two nuclear bodies which have previously been described in a wide range of plant species. In this work, we have demonstrated, by means of ultrastructural cytochemical, autoradiographic and immunocytochemical methods, that the so-called “micropuffs” contain chromatin, which is organized in a supranucleosomal structure, is inactive in transcription, and has no apparent relationship with the nucleolus. These features, as well as the distribution of these structures during the interphase periods, allowed us to conclude that they represent centromeric structures, so, we propose that they be denoted by this name. Coiled bodies show the same silver-staining pattern as the nucleolus organizer (NOR), but do not appear to contain NOR chromatin nor does the early processing of rRNA precursor seem to take place in them. We postulate they are involved in later nuclear RNA processing and storage. This work clarifies some previous misunderstandings with regard to these bodies.
|
| Type of Medium: |
Electronic Resource
|
| URL: |
| _version_ | 1798297352319008768 |
|---|---|
| autor | Martín, M. Espina, S. Moreno Díaz Jiménez-García, L. F. Fernández-Gómez, M. E. Medina, F. J. |
| autorsonst | Martín, M. Espina, S. Moreno Díaz Jiménez-García, L. F. Fernández-Gómez, M. E. Medina, F. J. |
| book_url | http://dx.doi.org/10.1007/BF01403381 |
| datenlieferant | nat_lic_papers |
| hauptsatz | hsatz_simple |
| identnr | NLM208461736 |
| issn | 1615-6102 |
| journal_name | Protoplasma |
| materialart | 1 |
| notes | Summary “Micropuffs” and coiled bodies are two nuclear bodies which have previously been described in a wide range of plant species. In this work, we have demonstrated, by means of ultrastructural cytochemical, autoradiographic and immunocytochemical methods, that the so-called “micropuffs” contain chromatin, which is organized in a supranucleosomal structure, is inactive in transcription, and has no apparent relationship with the nucleolus. These features, as well as the distribution of these structures during the interphase periods, allowed us to conclude that they represent centromeric structures, so, we propose that they be denoted by this name. Coiled bodies show the same silver-staining pattern as the nucleolus organizer (NOR), but do not appear to contain NOR chromatin nor does the early processing of rRNA precursor seem to take place in them. We postulate they are involved in later nuclear RNA processing and storage. This work clarifies some previous misunderstandings with regard to these bodies. |
| package_name | Springer |
| publikationsjahr_anzeige | 1992 |
| publikationsjahr_facette | 1992 |
| publikationsjahr_intervall | 8009:1990-1994 |
| publikationsjahr_sort | 1992 |
| publisher | Springer |
| reference | 167 (1992), S. 175-182 |
| schlagwort | Centromeric structures Nuclear bodies Plant cells RNA processing Silver staining-nucleolus organizer proteins |
| search_space | articles |
| shingle_author_1 | Martín, M. Espina, S. Moreno Díaz Jiménez-García, L. F. Fernández-Gómez, M. E. Medina, F. J. |
| shingle_author_2 | Martín, M. Espina, S. Moreno Díaz Jiménez-García, L. F. Fernández-Gómez, M. E. Medina, F. J. |
| shingle_author_3 | Martín, M. Espina, S. Moreno Díaz Jiménez-García, L. F. Fernández-Gómez, M. E. Medina, F. J. |
| shingle_author_4 | Martín, M. Espina, S. Moreno Díaz Jiménez-García, L. F. Fernández-Gómez, M. E. Medina, F. J. |
| shingle_catch_all_1 | Martín, M. Espina, S. Moreno Díaz Jiménez-García, L. F. Fernández-Gómez, M. E. Medina, F. J. Further investigations on the functional role of two nuclear bodies in onion cells Centromeric structures Nuclear bodies Plant cells RNA processing Silver staining-nucleolus organizer proteins Centromeric structures Nuclear bodies Plant cells RNA processing Silver staining-nucleolus organizer proteins Summary “Micropuffs” and coiled bodies are two nuclear bodies which have previously been described in a wide range of plant species. In this work, we have demonstrated, by means of ultrastructural cytochemical, autoradiographic and immunocytochemical methods, that the so-called “micropuffs” contain chromatin, which is organized in a supranucleosomal structure, is inactive in transcription, and has no apparent relationship with the nucleolus. These features, as well as the distribution of these structures during the interphase periods, allowed us to conclude that they represent centromeric structures, so, we propose that they be denoted by this name. Coiled bodies show the same silver-staining pattern as the nucleolus organizer (NOR), but do not appear to contain NOR chromatin nor does the early processing of rRNA precursor seem to take place in them. We postulate they are involved in later nuclear RNA processing and storage. This work clarifies some previous misunderstandings with regard to these bodies. 1615-6102 16156102 Springer |
| shingle_catch_all_2 | Martín, M. Espina, S. Moreno Díaz Jiménez-García, L. F. Fernández-Gómez, M. E. Medina, F. J. Further investigations on the functional role of two nuclear bodies in onion cells Centromeric structures Nuclear bodies Plant cells RNA processing Silver staining-nucleolus organizer proteins Centromeric structures Nuclear bodies Plant cells RNA processing Silver staining-nucleolus organizer proteins Summary “Micropuffs” and coiled bodies are two nuclear bodies which have previously been described in a wide range of plant species. In this work, we have demonstrated, by means of ultrastructural cytochemical, autoradiographic and immunocytochemical methods, that the so-called “micropuffs” contain chromatin, which is organized in a supranucleosomal structure, is inactive in transcription, and has no apparent relationship with the nucleolus. These features, as well as the distribution of these structures during the interphase periods, allowed us to conclude that they represent centromeric structures, so, we propose that they be denoted by this name. Coiled bodies show the same silver-staining pattern as the nucleolus organizer (NOR), but do not appear to contain NOR chromatin nor does the early processing of rRNA precursor seem to take place in them. We postulate they are involved in later nuclear RNA processing and storage. This work clarifies some previous misunderstandings with regard to these bodies. 1615-6102 16156102 Springer |
| shingle_catch_all_3 | Martín, M. Espina, S. Moreno Díaz Jiménez-García, L. F. Fernández-Gómez, M. E. Medina, F. J. Further investigations on the functional role of two nuclear bodies in onion cells Centromeric structures Nuclear bodies Plant cells RNA processing Silver staining-nucleolus organizer proteins Centromeric structures Nuclear bodies Plant cells RNA processing Silver staining-nucleolus organizer proteins Summary “Micropuffs” and coiled bodies are two nuclear bodies which have previously been described in a wide range of plant species. In this work, we have demonstrated, by means of ultrastructural cytochemical, autoradiographic and immunocytochemical methods, that the so-called “micropuffs” contain chromatin, which is organized in a supranucleosomal structure, is inactive in transcription, and has no apparent relationship with the nucleolus. These features, as well as the distribution of these structures during the interphase periods, allowed us to conclude that they represent centromeric structures, so, we propose that they be denoted by this name. Coiled bodies show the same silver-staining pattern as the nucleolus organizer (NOR), but do not appear to contain NOR chromatin nor does the early processing of rRNA precursor seem to take place in them. We postulate they are involved in later nuclear RNA processing and storage. This work clarifies some previous misunderstandings with regard to these bodies. 1615-6102 16156102 Springer |
| shingle_catch_all_4 | Martín, M. Espina, S. Moreno Díaz Jiménez-García, L. F. Fernández-Gómez, M. E. Medina, F. J. Further investigations on the functional role of two nuclear bodies in onion cells Centromeric structures Nuclear bodies Plant cells RNA processing Silver staining-nucleolus organizer proteins Centromeric structures Nuclear bodies Plant cells RNA processing Silver staining-nucleolus organizer proteins Summary “Micropuffs” and coiled bodies are two nuclear bodies which have previously been described in a wide range of plant species. In this work, we have demonstrated, by means of ultrastructural cytochemical, autoradiographic and immunocytochemical methods, that the so-called “micropuffs” contain chromatin, which is organized in a supranucleosomal structure, is inactive in transcription, and has no apparent relationship with the nucleolus. These features, as well as the distribution of these structures during the interphase periods, allowed us to conclude that they represent centromeric structures, so, we propose that they be denoted by this name. Coiled bodies show the same silver-staining pattern as the nucleolus organizer (NOR), but do not appear to contain NOR chromatin nor does the early processing of rRNA precursor seem to take place in them. We postulate they are involved in later nuclear RNA processing and storage. This work clarifies some previous misunderstandings with regard to these bodies. 1615-6102 16156102 Springer |
| shingle_title_1 | Further investigations on the functional role of two nuclear bodies in onion cells |
| shingle_title_2 | Further investigations on the functional role of two nuclear bodies in onion cells |
| shingle_title_3 | Further investigations on the functional role of two nuclear bodies in onion cells |
| shingle_title_4 | Further investigations on the functional role of two nuclear bodies in onion cells |
| sigel_instance_filter | dkfz geomar wilbert ipn albert fhp |
| source_archive | Springer Online Journal Archives 1860-2000 |
| timestamp | 2024-05-06T10:06:38.168Z |
| titel | Further investigations on the functional role of two nuclear bodies in onion cells |
| titel_suche | Further investigations on the functional role of two nuclear bodies in onion cells |
| topic | W |
| uid | nat_lic_papers_NLM208461736 |