Assembling the Fungal Tree of Life

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Phylum Subphylum Class Subclass Order Family Genus Species Anamorph
Ascomycota Pezizomycotina Dothideomycetes Pleosporomycetidae Pleosporales Pleosporaceae Cochliobolus sativus

Nuclear Division

Cell type: (MI) mitosis

Component: Nuc Div / SPB

Centriole absent 0  
Basic organization of the spindle pole spindle pole body a plaque or disc 3 Images
Spindle pole body form, interphase-prophase a 2-layered disc 2 Images
Spindle pole body form, metaphase-anaphase a 2-layered disc with intact nuclear envelope and internal microtubule organizing center 2 Images
Metaphase nuclear envelope intact 0 Images
Telophase nuclear envelope retention of the nuclear envelope around the chromatin with constriction/fragmentation near the poles, and interzone is cut off from the daughter nuclei 5 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
Notes Diploid strain used; authors report nucleolus is dispersed in late teleophase.
Character Quality good
Fixation gluteraldehyde with osmium postfix
Study Complete no
Author Huang, H.C., Tinline, R.D., and Fowke, L.C.
Date 1975
Source Can. J. Bot. 53: 403-414

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