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Phytotoxic Strains of Fusarium commune Isolated from Truffles

Anton Zvonarev1, Vasily Terentyev2, Valentina Zhelifonova1

  • 1G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center "Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences", Pushchino 142290, Russia.

Journal of Fungi (Basel, Switzerland)
|July 26, 2024
PubMed

Insights

Three Fusarium commune fungal strains were isolated from truffle fruiting bodies. These fungi moderately suppressed plant growth and photosynthetic activity in mustard seedlings, suggesting potential symbiotic roles in truffle ecosystems.

Area of Science:

  • Mycology
  • Plant Pathology
  • Fungal Genetics

Background:

  • Fusarium species are widespread endophytes and phytopathogens.
  • Recent studies indicate Fusarium presence in truffle microbiomes.
  • Truffle-associated Fusarium species require further characterization.

Purpose of the Study:

  • Isolate and identify Fusarium strains from truffle fruiting bodies.
  • Characterize the isolated Fusarium commune strains.
  • Investigate the phytopathogenic potential of these isolates.

Main Methods:

  • Fungal isolation and identification from truffle fruiting bodies.
  • Morphological and pigment characterization of Fusarium isolates.
  • Fatty acid analysis of fungal mycelium.
  • Infection assays on Brassica juncea seedlings.

Main Results:

  • Three Fusarium strains were isolated and identified as Fusarium commune.
  • Isolates exhibited characteristic conidial morphology and pigmentation.
  • Infection of mustard seedlings resulted in moderate suppression of photosynthesis and growth.
  • Mycelium fatty acid composition was analyzed.

Conclusions:

  • This study provides the first description of Fusarium cultures isolated from truffle fruiting bodies.
  • Fusarium commune isolates demonstrate phytopathogenic potential.
  • Potential symbiotic interactions and cooperative fatty acid production between Fusarium commune and truffles are proposed.
Keywords:
Brassica junceaFusariumfatty acidsmyceliumphotosystem IIphytotoxicitypigments

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