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Related Experiment Video

Updated: Feb 10, 2026

Quantification of Endogenous Auxin and Cytokinin During Internode Culture of Ipecac
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The auxin signal

P A Millner1

  • 1Department of Biochemistry and Molecular Biology, University of Leeds, UK.

Current Opinion in Cell Biology
|April 1, 1995
PubMed
Summary

The auxin signal is better understood, with its binding protein confirmed to function extracellularly. New research is uncovering how auxin influences genetic and cell biology, though transport mechanisms remain unclear.

Area of Science:

  • Plant biology
  • Molecular signaling
  • Genetics

Background:

  • The role of auxin in plant growth and development is well-established.
  • Recent studies have focused on the molecular mechanisms underlying auxin signaling.
  • The extracellular function of auxin-binding protein has been confirmed.

Purpose of the Study:

  • To elucidate the transport mechanisms of extracellular auxin-binding protein.
  • To investigate the genetic and cell biological effects of auxin.
  • To reconcile new experimental data with existing models of auxin signaling.

Main Methods:

  • Analysis of recent experimental findings on auxin signaling pathways.
  • Review of established and emerging data on auxin-binding protein localization.

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  • Integration of genetic and cell biology evidence related to auxin's action.

    • Main Results:

    • Confirmation that auxin-binding protein operates extracellularly.
    • Identification of key questions regarding the protein's extracellular localization.
    • Emerging insights into the genetic and cellular mechanisms of auxin action.

    Conclusions:

    • While the extracellular role of auxin-binding protein is known, its transport pathway requires further investigation.
    • Significant progress is being made in understanding how auxin mediates genetic and cellular responses.
    • Further research is needed to fully elucidate the auxin signaling pathway.