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Molecular Biology of Somatic Embryogenesis

  • Chapter
In Vitro Embryogenesis in Plants

Part of the book series: Current Plant Science and Biotechnology in Agriculture ((PSBA,volume 20))

Abstract

Similar to other higher eukaryotic organisms, in flowering plants, embryo development is the consequence of fertilization events. Union of gametes as the male sperm nucleus and the female egg results in the zygote which later develops into an embryo within the ovule. During the sexual reproductive cycle, the egg cell is prepared for initiation of the embryogenic development that is triggered by signals after sperm-egg contact. In vivo the gametophytic and sporophytic cell differentiation is separated and the haploid gametes are specialized for sexual fusion and the fertilized egg has the potential to develop into a new organism. In most higher eukaryotes, the differentiation of totipotent embryogenic cells is controlled by a pre-set developmental program and terminally differentiated cells are formed. In early embryos, the cells have rapid division cycles and the chromatin becomes transcriptionally active after variable number of division cycles during embryo development.

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Authors
  1. Dénes Dudits
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  2. János Györgyey
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  3. László Bögre
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  4. László Bakó
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  1. Plant Physiology Research Group, Department of Biological Sciences, The University of Calgary, Calgary, Alberta, Canada

    Trevor A. Thorpe

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Dudits, D., Györgyey, J., Bögre, L., Bakó, L. (1995). Molecular Biology of Somatic Embryogenesis. In: Thorpe, T.A. (eds) In Vitro Embryogenesis in Plants. Current Plant Science and Biotechnology in Agriculture, vol 20. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0485-2_8

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