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Mechanisms of Microsporidial Cell Division: Ultrastructural Study on Encephalitozoon hellem
Author(s) -
Bigliardi Elisa,
Riparbelli Maria Giovanna,
Selmi Maria Gloria,
Lanzarini Paolo,
Corona Silvia,
Gatti Simonetta,
Scaglia Massimo,
Sacchi Luciano
Publication year - 1998
Publication title -
journal of eukaryotic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 1066-5234
DOI - 10.1111/j.1550-7408.1998.tb04547.x
Subject(s) - biology , mitosis , microbiology and biotechnology , centrosome , cytoplasm , microtubule , ultrastructure , spindle apparatus , cell division , organelle , cell , genetics , anatomy , cell cycle
The mitotic process in microsporidian Encephalitozoon hellem. a known human pathogen, has been studied with the aim of elucidating some ultrastructural aspects of its nuclear division. The presence of a nuclear spindle, of “electrondense spindle plaques” associated with the nuclear envelope and of cytoplasmic double walled vesicles are reported. We suggest that these “electrondense spindle plaques” serve as foci for intranuclear and cytoplasmic microtubule arrangements, similar to the microtubule organizing centers within the centrosomes of animal cells. The extent to which the microsporidial division process is comparable with that of more familiar eukaryotes such as yeast cells is discussed.