Chapter 4. Development and Gravitropism of Lentil Seedling Roots Grown in Microgravity

  1. Dr.rer.nat. Enno Brinckmann Senior Biologist2,3
  1. Gérald Perbal and
  2. Dominique Driss-École

Published Online: 18 OCT 2007

DOI: 10.1002/9783527617005.ch4

Biology in Space and Life on Earth: Effects of Spaceflight on Biological Systems

Biology in Space and Life on Earth: Effects of Spaceflight on Biological Systems

How to Cite

Perbal, G. and Driss-École, D. (2007) Development and Gravitropism of Lentil Seedling Roots Grown in Microgravity, in Biology in Space and Life on Earth: Effects of Spaceflight on Biological Systems (ed E. Brinckmann), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany. doi: 10.1002/9783527617005.ch4

Editor Information

  1. 2

    ESA/HME-GPL, ESTEC, Postbus 299, 2200 AG Noordwijk, The Netherlands

  2. 3

    ESA (retired), Eschenweg 16, 26789 Leer, Germany

Author Information

  1. Université P. et M. Curie, Laboratory CEMV, case courier 150, Site d'IVRY-Le Raphaël, 4 place Jussieu, 75252 Paris Cedex 05, France

Publication History

  1. Published Online: 18 OCT 2007
  2. Published Print: 22 AUG 2007

ISBN Information

Print ISBN: 9783527406685

Online ISBN: 9783527617005

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Keywords:

  • biology;
  • space;
  • life on earth;
  • gravitropism;
  • lentil seedling roots;
  • microgravity;
  • basic hardware;
  • space experiments;
  • root gravitropism in space

Summary

This chapter contains sections titled:

  • Introduction

    • Development of Lentil Seedlings on the Ground

      • Functional Zones of the Primary Root

      • Role of the Root Cap

      • Meristematic Activity

      • Cell Elongation

    • Root Gravitropism on Earth

      • Perception of Gravity

      • The Root Statocyte

      • Gravisensitivity: The Presentation Time

      • Gravitropic Reaction

  • Basic Hardware Used to Perform Space Experiments

    • Plant Growth Chambers: The Minicontainers

      • Seed Set-up

      • Hydration of the Seeds

    • The Glutaraldehyde Fixer

  • Development in Space

    • Root Orientation in Microgravity

    • Root Growth

    • Cell Elongation

    • Meristematic Activity

      • Mitotic Activity

      • Cell Cycle

  • Root Gravitropism in Space

    • Organelle Distribution within the Statocyte

      • Statocyte Polarity

      • Positioning of the Nucleus and of the Endoplasmic Reticulum

      • Amyloplasts Positioning

    • Gravisensitivity

      • Presentation Time

      • Models for Dose–Response Curves

      • Difference in Gravisensitivity

      • Cause of the Difference in Gravisensitivity

      • Model of Gravisensing

    • Gravitropic Response

      • Absence of Counter-reaction

      • Comparison with the Effect of Cytochalasin Treatments

  • Conclusion

    • Action of Microgravity on Root Growth

    • Gravisensing Cells and Perception of Gravity by Roots

      • Statocyte Polarity and Movement of Organelles

      • Gravisensing