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Lateral Root Inducible System in Arabidopsis and Maize
09:23

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Published on: January 14, 2016

Traffic control in the root: keeping root branching in check.

Marleen Vanstraelen1, Tom Beeckman

  • 1Department of Plant Systems Biology, VIB, Technologiepark 927, B-9052 Gent, Belgium.

Developmental Cell
|August 3, 2013
PubMed
Summary

Symplastic transport is crucial for root development. Callose-dependent cell connectivity regulates new meristem formation and root branching in Arabidopsis thaliana.

Area of Science:

  • Plant Biology
  • Developmental Biology
  • Cellular Communication

Background:

  • Intercellular communication is vital for plant development.
  • The specific role of symplastic transport in root meristem formation was previously unknown.

Purpose of the Study:

  • To investigate the function of symplastic transport in the formation of new root meristems.
  • To explore the mechanisms controlling root branching in Arabidopsis thaliana.

Main Methods:

  • Utilized Arabidopsis thaliana as the model organism.
  • Investigated cell-to-cell connectivity and its regulation.

Main Results:

  • Demonstrated that callose-dependent cell-to-cell connectivity plays a key role.

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  • Showed this connectivity directly influences root meristem development and subsequent root branching.

    • Conclusions:

    • Symplastic transport, regulated by callose, is essential for establishing root meristems.
    • Cellular connectivity is a critical determinant of root architecture in plants.