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Related Experiment Videos

Surface signaling in pathogenesis

P E Kolattukudy1, L M Rogers, D Li

  • 1Neurobiotechnology Center, Ohio State University, Columbus 43210, USA.

Proceedings of the National Academy of Sciences of the United States of America
|May 9, 1995
PubMed
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Plant surface cues like topography and chemicals trigger fungal spore germination and infection. Understanding these signals and fungal genes, such as cutinase, is key to controlling plant diseases.

Area of Science:

  • Plant pathology
  • Molecular biology
  • Mycology

Background:

  • Fungal pathogens utilize plant surface cues for infection.
  • Ethylene and surface topography influence fungal development and virulence.
  • Fungal cutinase is essential for penetrating plant cuticles.

Purpose of the Study:

  • Investigate signaling pathways in fungal-plant surface interactions.
  • Identify genes and regulatory mechanisms controlling appressoria formation and cuticle penetration.
  • Elucidate the role of protein kinases in regulating fungal virulence gene expression.

Main Methods:

  • Isolation and characterization of genes involved in appressoria formation.
  • Gene disruption studies to assess virulence.
  • Identification of promoter elements and transcription factors for cutinase gene.

Related Experiment Videos

  • Cloning of protein kinases and investigation of phosphorylation in transcription factor regulation.

    • Main Results:

    • Genes essential for appressoria formation and virulence were identified.
    • Cutinase gene disruption significantly reduced fungal virulence.
    • Transcription factors regulating cutinase expression were cloned.
    • Phosphorylation of a transcription factor by a cloned kinase was observed.

    Conclusions:

    • Plant surface signaling is crucial for fungal infection processes.
    • Cutinase and its regulatory elements are key targets for disease control.
    • Phosphorylation by protein kinases likely plays a regulatory role in fungal virulence, requiring further investigation.