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Updated: May 8, 2026

A Contrast of Three Inoculation Techniques used to Determine the Race of Unknown Fusarium oxysporum f.sp. niveum Isolates
11:48

A Contrast of Three Inoculation Techniques used to Determine the Race of Unknown Fusarium oxysporum f.sp. niveum Isolates

Published on: October 28, 2021

Fusarium pathogenomics.

Li-Jun Ma1, David M Geiser, Robert H Proctor

  • 1Department of Biochemistry and Molecular Biology, University of Massachusetts, Amherst, Massachusetts 01003;

Annual Review of Microbiology
|September 13, 2013
PubMed
Summary
This summary is machine-generated.

Fusarium fungi genomes have core and adaptive regions. Pathogenicity chromosomes, carrying virulence genes, can transfer between strains, enabling new host adaptations and disease development.

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Related Experiment Videos

Last Updated: May 8, 2026

A Contrast of Three Inoculation Techniques used to Determine the Race of Unknown Fusarium oxysporum f.sp. niveum Isolates
11:48

A Contrast of Three Inoculation Techniques used to Determine the Race of Unknown Fusarium oxysporum f.sp. niveum Isolates

Published on: October 28, 2021

Toxin Induction and Protein Extraction from Fusarium spp. Cultures for Proteomic Studies
08:19

Toxin Induction and Protein Extraction from Fusarium spp. Cultures for Proteomic Studies

Published on: February 16, 2010

Sexual Development and Ascospore Discharge in Fusarium graminearum
08:20

Sexual Development and Ascospore Discharge in Fusarium graminearum

Published on: March 29, 2012

Area of Science:

  • Mycology
  • Plant Pathology
  • Genomics

Background:

  • Fusarium species are significant plant pathogens, mycotoxin producers, and opportunistic human pathogens.
  • The Fusarium genome is divided into a core genome (primary metabolism, reproduction) and an adaptive genome (virulence, host specialization).

Purpose of the Study:

  • To investigate the role of specific genomic regions in Fusarium pathogenicity and host specialization.
  • To explore the mechanisms underlying the evolution of virulence in Fusarium species.

Main Methods:

  • Comparative genomic analyses of Fusarium strains.
  • Experimental transfer of pathogenicity chromosomes between strains.
  • Functional studies of virulence genes.

Main Results:

  • Genes essential for virulence and host specialization in Fusarium oxysporum f. sp. lycopersici and Fusarium 'solani' f. sp. pisi are located on pathogenicity chromosomes.
  • Experimental transfer of these chromosomes conferred pathogenicity to a nonpathogenic strain.
  • Horizontal transfer of pathogenicity chromosomes likely contributes to the polyphyletic origins of host specificity within the Fusarium genus.

Conclusions:

  • Pathogenicity chromosomes play a crucial role in Fusarium virulence and host adaptation.
  • Horizontal gene transfer is a significant evolutionary mechanism for pathogenicity in Fusarium.
  • Understanding these mechanisms can inform novel strategies for managing fusarial diseases.