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| Content Provider | Springer Nature Link |
|---|---|
| Author | Duan, X. L. Chen, H. Z. Han, R. |
| Copyright Year | 2015 |
| Abstract | Regulator of Chromosome Condensation 1 (RCC1), a Guanine Nucleotide Exchange Factor (GEF) for the small Ran GTPase (Ran-GTP), is localized on chromatin in the nucleus where it mediates the generation of Ran-GTP. The production of Ran-GTP by RCC1 is critical for nuclear envelope formation, nucleocytoplasmic transport, DNA replication, and chromosome-induced mitotic spindle assembly. Most of the previous studies on RCC1 were carried out in mammalian cells. Only few studies on RCC1 in plant cell have been reported. Here we present an investigation on the identification of RCC1 and its location in wheat (Triticum aestivum L.) somatic cells during mitosis using immunoblotting and immunofluorescence. It was assumed that RCC1 was richer in chromatin than the surrounding cytoplasm throughout mitosis. Compared with white light, enhanced UV-B radiation greatly reduced the content of RCC1 (immunoblotting) and its fluorescence intensity. When RCC1 was absent, laser scanning confocal microscope detected the abnormal chromosomes. The results indicate that the participation of RCC1 in cell cycle provides theoretical ground for revealing the mechanism of abnormal mitosis caused by enhanced UV-B radiation and are of practical significance for agricultural production. |
| Starting Page | 695 |
| Ending Page | 699 |
| Page Count | 5 |
| File Format | |
| ISSN | 10214437 |
| Journal | Russian Journal of Plant Physiology |
| Volume Number | 62 |
| Issue Number | 5 |
| e-ISSN | 16083407 |
| Language | English |
| Publisher | Pleiades Publishing |
| Publisher Date | 2015-08-14 |
| Publisher Place | Moscow |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Triticum aestivum somatic cell mitosis Regulator of Chromosome Condensation1 (RCC1) UV-B radiation av]Abbreviations Plant Physiology Plant Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science |
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