Assembling the Fungal Tree of Life

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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

CharacteristicStateCodeImages
Centriole absent 0  
Basic organization of the spindle pole spindle pole body a plaque or disc 3 Images
Spindle pole body migration (per Heath, 1980, Int. Rev. Cytol. 64:1) migration during spindle formation 1 Images
Metaphase nuclear envelope intact with small polar fenestrae plugged by the spindle pole bodies 1 Images
Telophase nuclear envelope retention of complete nuclear envelope around the chromatin with median constriction/fragmentation 0 Images
Perinuclear endoplasmic reticulum absent 0  
Spindle vesicles absent 0  
Central spindle absent 0 Images
Metaphase plate absent 0 Images
Spindle pole body cap absent 0 Images
Interphase chromatin condensation absent 0  
Nucleolus behavior nucleolus is persistent throughout division 3 Images
Transient intranuclear element at late interphase-prophase present within nucleus opposite the extranuclear spindle pole body 1 Images
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

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