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Related Experiment Video

Updated: Jan 2, 2026

Author Spotlight: Alignment of Synchronized Time-Series Data Using the Characterizing Loss of Cell Cycle Synchrony Model for Cross-Experiment Comparisons
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Author Spotlight: Alignment of Synchronized Time-Series Data Using the Characterizing Loss of Cell Cycle Synchrony Model for Cross-Experiment Comparisons

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Cycling in synchrony.

Míriam Osés-Ruiz1, Nicholas J Talbot1

  • 1The Sainsbury Laboratory, University of East Anglia, Norwich, United Kingdom.

Elife
|December 3, 2019
PubMed
Summary
This summary is machine-generated.

The corn smut fungus, Ustilago maydis, employs distinct cell cycle control strategies during plant infection. Understanding these mechanisms is key to controlling this significant agricultural pathogen.

Keywords:
Plant diseaseUstilago maydiscell cycledevelopmental biologyfungal developmentinfectious diseasemicrobiologypheromone signallingvirulence

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Area of Science:

  • Plant pathology
  • Mycology
  • Molecular biology
  • Cell biology

Background:

  • Corn smut, caused by Ustilago maydis, is a devastating pathogen affecting maize crops worldwide.
  • The fungus undergoes complex developmental transitions during infection, including cell cycle regulation.
  • Understanding the molecular basis of cell cycle control in Ustilago maydis is crucial for developing effective disease management strategies.

Purpose of the Study:

  • To elucidate the distinct mechanisms by which Ustilago maydis regulates its cell cycle during plant infection.
  • To identify key regulatory pathways involved in fungal development and pathogenicity.

Main Methods:

  • Comparative transcriptomics to analyze gene expression profiles during different infection stages.
  • Genetic manipulation of key cell cycle regulators.
  • Microscopy to visualize fungal morphology and cell cycle progression within plant tissues.

Main Results:

  • Ustilago maydis utilizes at least two divergent cell cycle control pathways during host colonization.
  • Specific cyclin-dependent kinase (CDK) complexes and their regulators show differential expression and activity depending on the infection context.
  • Disruption of these pathways significantly impacts fungal virulence and disease development.

Conclusions:

  • Ustilago maydis exhibits remarkable flexibility in cell cycle regulation to adapt to the host environment.
  • These findings provide novel insights into fungal pathogenesis and potential targets for agricultural interventions.
  • Further research into these mechanisms could lead to innovative strategies for controlling corn smut disease.