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Initiation und Etablierung von Keimblättern im Arabidopsis-Embryo

  • Wissenschaft
  • Keimblattorganogenese bei Pflanzen
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Abstract

Cotyledons are specialised embryonic leaves whose initiation starts when the activities of the Ser/Thr-kinase PID and the NPH3-like protein ENP polarise the auxin transporter PIN1 in epidermal cells of the Arabidopsis embryo apex. The resulting directional auxin flux generates two opposing cell groups with high concentrations of the hormone auxin. These auxin maxima are essential for initiation and maintenance of cotyledons. We describe the interplay of factors participating in this process.

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Authors and Affiliations

  1. Lehrstuhl für Genetik, TU München, München, Germany

    Michaela Matthes & Ramon A. Torres-Ruiz

  2. Lehrstuhl für Genetik, Technische Universität München, Emil-Ramann-Straße 8, D-85350, Freising, Germany

    Ramon A. Torres-Ruiz

Authors
  1. Michaela Matthes
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  2. Ramon A. Torres-Ruiz
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Corresponding author

Correspondence to Ramon A. Torres-Ruiz.

Additional information

Michaela Matthes Biologiestudium. 2008 Bachelor of Science, TU München. 2010 Master of Science in den Neurowissenschaften, LMU München.

Ramon A. Torres-Ruiz Biologiestudium an den Universitäten Tübingen, Kiel, München (LMU und TU) und weitere Stationen. 1989 Promotion an der Universität Tübingen. Seit 2001 außerplanmäßiger Professor an der TU München.

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Matthes, M., Torres-Ruiz, R.A. Initiation und Etablierung von Keimblättern im Arabidopsis-Embryo. Biospektrum 18, 717–720 (2012). https://doi.org/10.1007/s12268-012-0251-3

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  • DOI: https://doi.org/10.1007/s12268-012-0251-3

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