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The Terroir Concept Interpreted through Grape Berry Metabolomics and Transcriptomics
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Published on: October 5, 2016

Up-regulated transcripts in a compatible powdery mildew-grapevine interaction.

Csaba Fekete1, Raymond W M Fung, Zoltán Szabó

  • 1Department of Agriculture, Missouri State University, Mountain Grove, MO 65711, USA.

Plant Physiology and Biochemistry : PPB
|April 14, 2009
PubMed
Summary
This summary is machine-generated.

Grapevine (Vitis vinifera L.) genes were identified that respond to powdery mildew (Erysiphe necator) infection. This study reveals molecular insights into plant-pathogen interactions and defense mechanisms.

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Area of Science:

  • Plant Pathology
  • Molecular Biology
  • Genomics

Background:

  • Powdery mildews are biotrophic pathogens that infect plants without causing cell death, indicating sophisticated parasitism.
  • Understanding grapevine (Vitis vinifera L.)-Erysiphe necator interactions is crucial for managing this economically significant disease.

Purpose of the Study:

  • To identify grapevine genes specifically upregulated in response to Erysiphe necator infection.
  • To gain a comprehensive view of molecular events during this plant-pathogen interaction.

Main Methods:

  • Suppression subtractive hybridization (SSH)
  • Differential hybridization
  • Quantitative real-time PCR (qRT-PCR)

Main Results:

  • Identified 25 grapevine transcripts upregulated upon Erysiphe necator infection in susceptible Vitis vinifera cv. Cabernet Sauvignon.
  • Detected genes involved in defense responses, signal transduction (e.g., leucine-rich repeat receptor kinase, MYB transcription factor), and ubiquitination.
  • Found genes associated with senescence processes, including metallothioneins and proteases.

Conclusions:

  • The identified genes provide new molecular markers for studying grapevine resistance to powdery mildew.
  • This research enhances our understanding of the complex molecular dialogue between grapevine and Erysiphe necator.