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Mechanism and Evolution of Organelle Division

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Part of the book series: Cellular Origin and Life in Extreme Habitats ((COLE,volume 1))

Abstract

Faithful inheritance of organelles by daughter cells is an essential component of cell division in eukaryotes. The mechanism of inheritance of the nucleus has been studied in more detail than that of any other organelle. Briefly, the chromosome DNA, the main cargo of the nucleus, duplicates at a specific point in the cell cycle (S phase). In the next stage (M phase), the nuclear envelope fragments into vesicles and the chromosomes are separated and transported to the opposite poles of the cell by the spindle, an apparatus consisting mainly of microtubules. After the chromosomes have separated, a nuclear envelope is reconstructed from the dispersed vesicles surrounding the chromosomes in each daughter cell (Warren and Wickner 1996). This process of nuclear inheritance has been described in detail at the molecular level. On the other hand, inheritance of the cytoplasmic organelles, such as the plastids and mitochondria, is not well understood at the present, and the molecular basis of the proliferation (or division) and distribution of the organelles remains largely unknown.

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Joseph Seckbach

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© 1999 Springer Science+Business Media Dordrecht

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Itoh, R., Kuroiwa, T. (1999). Mechanism and Evolution of Organelle Division. In: Seckbach, J. (eds) Enigmatic Microorganisms and Life in Extreme Environments. Cellular Origin and Life in Extreme Habitats, vol 1. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4838-2_35

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  • DOI: https://doi.org/10.1007/978-94-011-4838-2_35

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-1-4020-1863-3

  • Online ISBN: 978-94-011-4838-2

  • eBook Packages: Springer Book Archive

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