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Formation and Fate of Extranuclear Chromatin Bodies in Tetrahymena (1979)

SALAMONE, MICHAEL F. ; NACHTWEY, D. STUART

Oxford, UK : Blackwell Publishing Ltd

The @journal of eukaryotic microbiology 26 (1979), S. 0

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ISSN: 1550-7408

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Biology

Notes: The fate of extranuclear chromatin bodies (ECBs) formed by exclusion of macronuclear material at the time of karyokinesis was followed quantitatively in Tetrahymena pyriformis strain GL-I. In a logarithmic growth phase culture, 51% of the dividing cells produced one (43%) or more (8%) ECBs. Most of these gradually disappear before the next cell division, but ˜ 13% are retained and carried into subsequent cell cycles. The random distribution of ECBs into anterior or posterior daughter cells, their staining and morphological characteristics, and their rapid loss in cells in starvation medium, all indicate that ECBs play no more of a role in cellular activity than that of an internally produced food vacuole.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.1550-7408.1979.tb02765.x

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