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Is actin involved in the nuclear division in Amoeba proteus?

✍ Scribed by Pawel Pomorski; Lucyna Grebecka

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
364 KB
Volume
17
Category
Article
ISSN
1065-6995

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✦ Synopsis

Abstract

During semi‐open mitosis of Amoeba proteus the nuclear envelope is not dispersed and nucleus divides by fission. The presence of actin layer close to nuclear envelope was demonstrated in interphase and telophase nuclei of that amoeba stained with rhodamine labelled phalloidin. In telophase, an accumulation of actin arises in the space between the future daughter nuclei. It appears to be comparable with the contractile ring of dividing cells. This suggests that actin associated with the nuclear envelope of Amoeba proteus may be involved in final separation of the daughter nuclei, forming a constriction ring at the middle of dividing nucleus.

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