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Establishing compatibility between plants and obligate biotrophic pathogens.

Ralph Panstruga1

  • 1Max-Planck-Institut für Züchtungsforschung, Department of Plant-Microbe Interactions, Carl-von-Linné-Weg 10, 50829 Köln, Germany. panstrug@mpiz-koeln.mpg.de

Current Opinion in Plant Biology
|July 23, 2003
PubMed
Summary

Plant disease susceptibility, or compatibility, is crucial for understanding plant-pathogen interactions. Research highlights nutrient transporters and suppressed host defenses in plant-biotroph relationships.

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Area of Science:

  • Plant pathology
  • Molecular biology
  • Plant-microbe interactions

Background:

  • Plant disease resistance is well-studied, but plant disease susceptibility (compatibility) is less appreciated.
  • Compatibility and resistance are interconnected, with advances in one informing the other.
  • Plant-biotroph interactions involve complex molecular mechanisms.

Purpose of the Study:

  • To explore the concept of plant disease susceptibility and its link to compatibility.
  • To review recent molecular insights into plant-biotroph compatibility.
  • To investigate the role of host compatibility factors in plant-pathogen interactions.

Main Methods:

  • Molecular isolation and functional characterization of haustorium-specific cDNAs.
  • Analysis of nutrient transporter proteins involved in host-pathogen interactions.

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  • Examination of plant mutants resistant to pathogens without constitutive defense activation.

    • Main Results:

    • Identification of cDNAs encoding presumptive hexose- and amino-acid-transporter proteins in plant-biotrophs.
    • Evidence suggests pathogens actively suppress host defenses.
    • Arabidopsis thaliana mutants resistant to mildew may possess altered host-compatibility factors.

    Conclusions:

    • Plant disease susceptibility, or compatibility, is a critical area for research.
    • Pathogen-mediated suppression of host defenses is a key aspect of compatibility.
    • Host compatibility factors play a significant role in plant disease development and resistance.