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Mycoparasitism of Acremonium strictum BCP on Botrytis cinerea, the gray mold pathogen

Gyung Ja Choi1, Jin-Cheol Kim, Kyoung Soo Jang

  • 1Chemical Biotechnology Research Center, Korea Research Institute of Chemical Technology, Daejeon 305-343, Korea. kjchoi@krict.re.kr

Journal of Microbiology and Biotechnology
|February 2, 2008
PubMed

Insights

A new fungal strain, Acremonium strictum BCP, effectively controls the gray mold pathogen Botrytis cinerea. This mycoparasite inhibits growth and causes cell damage, offering a promising biological control agent.

Area of Science:

  • Agricultural Science
  • Mycology
  • Plant Pathology

Background:

  • Botrytis cinerea is a major plant pathogen causing gray mold disease.
  • Effective and sustainable control methods for B. cinerea are needed.
  • Mycoparasitism offers a potential biological control strategy.

Purpose of the Study:

  • To isolate and identify a fungal strain with antagonistic activity against Botrytis cinerea.
  • To investigate the mycoparasitic potential of the isolated strain on B. cinerea.
  • To evaluate the efficacy of the strain against other plant pathogenic fungi.

Main Methods:

  • Isolation and identification of fungal strain BCP.
  • Microscopic observation of interactions between BCP and B. cinerea.
  • Dual culture tests to assess inhibition of fungal growth.

Main Results:

  • Strain BCP was identified as Acremonium strictum.
  • A. strictum BCP demonstrated strong overgrowth and lysis of B. cinerea.
  • Microscopic analysis revealed hyphal penetration and intracellular growth of A. strictum within B. cinerea.
  • Morphological abnormalities were observed in B. cinerea mycelia and spores.
  • A. strictum BCP inhibited the growth of other tested plant pathogenic fungi.

Conclusions:

  • Acremonium strictum BCP is a potent mycoparasite of Botrytis cinerea.
  • This study reports the first instance of mycoparasitism by an Acremonium species on B. cinerea.
  • A. strictum BCP shows potential as a biological control agent for gray mold and other plant diseases.

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