| Autor: |
Eben, von Well, Mardé, Booyse, Annabel, Fossey |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Protoplasma. 259(2) |
| ISSN: |
1615-6102 |
| Popis: |
Ionizing irradiation induces positive or negative changes in plant growth (M1) depending on the amount of irradiation applied to seeds or plant parts. The effect of 50-350 Gy gamma irradiation of kernels on nucleolar activity, as an indicator of metabolic activity, in root tip cells of tetraploid wheat Triticum turgidum ssp. durum L. cv. Orania (AABB) was investigated. The number of nucleoli present in nuclei and micronuclei as well as the mitotic index in the different irradiation dosages was used as an indicator of the cells entering mitosis, the chromosomes with nucleolar organizer regions that are active as well as chromosome doubling in the event of unsuccessful mitotic division. Nucleolar activity was investigated from 17.5 to 47.5 h after the onset of imbibition to study the first mitotic division and its consequences on the cells that were in G |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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