View changelog
| Phylum | Subphylum | Class | Subclass | Order | Family | Genus | Species | Anamorph |
|---|---|---|---|---|---|---|---|---|
| Ascomycota | Taphrinomycotina | Schizosaccharomycetes | Schizosaccharomycetidae | Schizosaccharomycetales | Schizosaccharomycetaceae | Schizosaccharomyces | pombe |
Nuclear Division
Cell type: (MI) mitosis
Component: Nuc Div / SPB
| Characteristic | State | Code | Images |
|---|---|---|---|
| Centriole | absent | 0 | |
| Basic organization of the spindle pole | spindle pole body a plaque or disc | 3 |  |
| Spindle pole body migration (per Heath, 1980, Int. Rev. Cytol. 64:1) | migration during spindle formation | 1 | |
| Metaphase nuclear envelope | intact with small polar fenestrae plugged by the spindle pole bodies | 1 | |
| Telophase nuclear envelope | retention of complete nuclear envelope around the chromatin with median constriction/fragmentation | 0 | |
| Perinuclear endoplasmic reticulum | absent | 0 | |
| Spindle vesicles | absent | 0 | |
| Central spindle | absent | 0 | |
| Metaphase plate | absent | 0 | |
| Spindle pole body cap | absent | 0 | |
| Interphase chromatin condensation | absent | 0 | |
| Nucleolus behavior | nucleolus is persistent throughout division | 3 | |
| Transient intranuclear element at late interphase-prophase | present within nucleus opposite the extranuclear spindle pole body | 1 | |
| Sources | |
|---|---|
| Notes | Authors describe one spindle pole body being incorporated into the nuclear membrane during division. |
| Character Quality | good |
| Fixation | freeze substitution |
| Study Complete | no |
| Author | Tanaka, K. and Kanbe, T. |
| Date | 1986 |
| Source | J. Cell Sci. 80: 253-268 |
| Other Sources | McCully, E.K. and Robinow, C.F. 1971. J. Cell Sci. 9: 475-507 |