ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology1997
Globular and fibrous structure in barley chromosomes revealed by high-resolution scanning electron microscopy.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 42 citations in OpenAlex.
- Advanced environmental scanning electron microscopy reveals natural surface nano-morphology of condensed mitotic chromosomes in their native state.Scientific reports · 2024Article
- Surface structures consisting of chromatin fibers in isolated barley (Hordeum vulgare) chromosomes revealed by helium ion microscopy.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2021Article
- Use of 3D imaging for providing insights into high-order structure of mitotic chromosomes.Chromosoma · 2019Review
- The three-dimensional structure of in vitro reconstituted Xenopus laevis chromosomes by EM tomography.Chromosoma · 2007Article
- Centromere-specific acetylation of histone H4 in barley detected through three-dimensional microscopy.Plant molecular biology · 2003Article
- Analysis by atomic force microscopy of morphological changes in barley chromosomes during FISH treatment.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2003Article
- Nuclear organization and chromosome segregation.The Plant cell · 1999Review
Corrections and comments
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4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Barley chromosomes were prepared for high-resolution scanning electron microscopy using a combination of enzyme maceration, treatment in acetic acid and osmium impregnation using thiocarbohydrazide. Using this technique, the three-dimensional ultrastructure of interphase nuclei and mitotic chromosomes was examined. In Interphase, different levels of chromatin condensation were observed, consisting of fibrils 10 nm in diameter, 20- to 40-nm fibres and a higher order complex. In prophase, globular and strand-like structures composed of 20- to 40-nm fibres were dominant. As the cells progressed through the cell cycle and the chromatin condensed, globular and strand-like structures (chromomeres) were coiled and packed to form chromosomes. Chromomeres were observed as globular protuberances on the surface of metaphase chromosomes. These findings indicate that the chromomere is a fundamental substructure of the higher order architecture of the chromosome. In the centromeric region, there were no globular protuberances, but 20- to 40-nm fibres were folded compactly to form a higher level organization surrounding the chromosomal axia.
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