Mycobiology

The Korean Society of Mycology (한국균학회)
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Physiological Characteristics of Green Mold(Trichoderma spp.) Isolated from Oyster Mushroom(Pleurotus spp.)

  • Choi, In-Young (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Joung, Gi-Tae (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Ryu, Joung (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Choi, Joung-Sik (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Choi, Yeong-Geun (Jeollabuk-do Agricultural Research and Extension Services)
  • Published : 2003.09.30
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Abstract

This study was conducted to investigate physiological characteristics of Trichoderma spp. isolated from Pleurotus spp. Damage tests of Pleurotus spp. and mycotoxins tests of Trichoderma spp. were also done. The optimal growth temperature of Trichoderma spp. was $27{\sim}30^{\circ}C$. Although, T. longibrachiatum was able to grow at $37^{\circ}C$ and grew $30{\sim}40$ times faster than Pleurotus. The colony colour on PDA medium of T. cf. virens was yellowish green, T. longibrachiatum was yellow, and T. harzianum was turning to bright green. In damage tests of Pleurotus by Trichoderma, T. cf. virens caused the most severe damage to Pleurotus. T. longibrachiatum and T. harzianum caused less damage on Pleurotus but were able to cause greater damage to P. eryngii. One of the mushroom cultivars, P. ostreatus 8 was the most resistant to all Trichoderma spp.. Chitinolytic mycotoxin released by Trichoderma spp. caused 52.7% damage to Pleurotus. Mycotoxins released by T. longibrachiatum caused the greatest damaged(78.6%) on P. eryngii.

Keywords

References

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