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PMID: 4561944 Published · ppublish English Journal Article

Ultrastructure and time course of mitosis in the fungus Fusarium oxysporum.

The Journal of cell biology ·Vol. 55 ·No. 2 ·1972-11-00 ·Pages 368-89

Aist JR, Williams PH

Abstract

Mitosis in Fusarium oxysporum Schlect. was studied by light and electron microscopy. The average times required for the stages of mitosis, as determined from measurements made on living nuclei, were as follows: prophase, 70 sec; metaphase, 120 sec; anaphase, 13 sec; and telophase, 125 sec, for a total of 5.5 min. New postfixation procedures were developed specifically to preserve the fine-structure of the mitotic apparatus. Electron microscopy of mitotic nuclei revealed a fibrillo-granular, extranuclear Spindle Pole Body (SPB) at each pole of the intranuclear, microtubular spindles. Metaphase chromosomes were attached to spindle microtubules via kinetochores, which were found near the spindle poles at telophase. The still-intact, original nuclear envelope constricted around the incipient daughter nuclei during telophase.

MeSH Terms
Cell Nucleus Chromosomes Cytological Techniques Fusarium/cytology Microscopy, Electron Microtubules Mitosis Time Factors
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Aist J R
Williams P H
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Article Info
Journal
The Journal of cell biology
Abbr.
J Cell Biol
ISSN
0021-9525
Published
1972-11-00
Pages
368-89
Language
English
Region
United States
NLM ID
0375356
PMCID
PMC2108800
Subset
IM
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