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Extracellular proteins in plant embryogenesis.

F A Van Engelen1, S C De Vries

  • 1Department of Molecular Biology, Agricultural University Wageningen, The Netherlands.

Trends in Genetics : TIG
|February 1, 1992
PubMed
Summary

Plant tissue culture can produce nonzygotic embryos from somatic cells. Specific extracellular glycoproteins can rescue arrested embryos and may control plant cell expansion.

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Area of Science:

  • Plant biology
  • Cellular biology
  • Biochemistry

Background:

  • Somatic embryogenesis allows for the development of nonzygotic embryos from diploid somatic cells in various plant species through tissue culture techniques.
  • Arrested somatic embryos, a common challenge in plant propagation, can be rescued by specific extracellular glycoproteins.

Purpose of the Study:

  • To identify and characterize extracellular glycoproteins involved in rescuing arrested somatic embryos.
  • To investigate the potential role of these glycoproteins in regulating plant cell expansion.

Main Methods:

  • Plant tissue culture techniques were employed to generate somatic embryos.
  • Biochemical assays were used to identify and isolate extracellular glycoproteins.
  • Functional assays were performed to assess the ability of glycoproteins to rescue arrested embryos and influence cell expansion.

Main Results:

  • Extracellular glycoproteins capable of rescuing arrested somatic embryos were identified.
  • One specific glycoprotein was found to potentially regulate plant cell expansion.

Conclusions:

  • Extracellular glycoproteins play a crucial role in somatic embryogenesis and the rescue of arrested embryos.
  • These identified glycoproteins may be key components of the cellular mechanisms controlling plant cell expansion, offering potential applications in plant biotechnology.

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