• 한국균학회지
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• 제27권5호
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• pp.345-348
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• 1999

외생균근성 버섯인 송이는 동북아시아지역에서 가장 비싼 버섯이다. 이 버섯은 식용버섯이므로 자실체 표면에 병원균이 발생한다면 매우 심각한 문제가 아닐 수 없다. 송이 자실체의 기생균을 발견하였으므로 이에 대하여 자세히 설명하고 Syzygites megalocarpus Ehrenberg ex Fries로 동정하고 이분지털곰팡이로 명명하였음을 보고한다.

• Mycobiology
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• 제37권4호
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• pp.308-309
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• 2009

Powdery mildews on over 40 plants in Bangalore were screened during July-December of 2003~2008. Isolates from mycoparasitised Oidium caesalpiniacearum of Bauhinia purpurea comprised Lasiodiplodia theobromae, in addition to Ampelomyces quisqualis. Koch's postulates were satisfied to establish the mycoparasitism of L. theobromae. This is the first report that L. theobromae acts as a mycoparasite of a powdery mildew.

• The Plant Pathology Journal
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• 제18권2호
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• pp.102-105
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• 2002

A strain of Acremonium strictum, the mycoparasite of Botrytis cinerea, showed strong antifungal activities both in vitro and in vivo against several phytopathogenic fungi. An antifungal substance was purified from the liquid cultures of A. strictum and identified as verlamelin by instrumental analyses. Verlamelin exhibited in vitro antifungal activity against some phytopathogenic fungi such as Magnaporthe grisea, Bipolaris maydis, and Botrytis cinerea, while it was net active against all the bacteria tested. In viva, verlamelin exhibited strong protective and curative activities, particularly against barley powdery mildew. At 100 μg/ml, it inhibited the development of barley powdery mildew with control values of more than 90% in 7-day protective and 2-day curative applications. This is the first report on the production of verlamelin by Acremonium species.

• 한국균학회지
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• 제44권1호
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• pp.64-67
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• 2016

During screening fungi as potential biological control agents for plant parasitic fungi, a fungal strain, EML-FAM3, was isolated from powdery mildew leaf lesions caused by Erysiphe platani on sycamore (Platanus occidentalis L.), and another strain, EML-FAMC1, from Erysiphe australiana on crape myrtle (Lagerstroemia indica L.). Based on the morphological characteristics and phylogenetic analysis of the internal transcribed spacers (ITS1 and ITS2) and 5.8S rDNA, the strains were identified as Ampelomyces quisqualis. To our knowledge, this is the first report of new mycohosts, E. platani and E. australiana, of the mycoparasite A. quisqualis on sycamore and crape myrtle plants. The hyperparasite may represent the potential for controlling E. platani and E. australiana epidemics.

• 한국균학회지
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• 제40권4호
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• pp.271-276
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• 2012

S. sclerotiorum에 의한 상추 균핵병의 생물적 방제를 위하여 기생진균 P. minitans CM2을 선발하였다. 경기도 양평군의 상추 시설재배포장에서 실험이 3월부터 4월에 수행되었다 상추균핵병 발생초기에 기생진균의 포자현탁액의 농도별로 7일 간격 1회 부터 3회까지 상추의 지제부에 관주처리하였다. P. minitans CM2($1{\times}10^7/m{\ell}$)의 1회 처리구가 11.0%, 베노밀수화제가 2.7%, 무처리가 31.0% 각각 균핵병이 발생하였고, 2회 관주처리가 7.9%, 3회 관주처리가 12.8% 균핵병이 각각 발생하였다. P. minitans CM2 균주의 처리시기에 대한 시험을 양평과 수원에서 실시하였다. P. minitans CM2 균주의 포자현탁액($5{\times}10^6/m{\ell}$)을 상추 정식직후에 관주 처리가 75.3~84.7%, 정식전 육묘 200공 연결포트에 관주처리한 후 균핵병 발생초기에 관주처리는 58.0~63.8% 방제효과를 나타내었다. 이와 같은 결과에서 P. minitans CM2 균주는 상추균핵병에 생물적 방제를 위한 유망한 미생물농약개발이 가능하다고 생각된다.

• 한국식물병리학회지
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• 제11권4호
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• pp.298-303
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• 1995

The biological control effect of Trichoderma harzianum on the Fusarium wilt of strawberry and several factors affecting on its efficacy were examined through pot experiments. T. harzianum grown on wheat barn, rice straw, rice hull, sawdust or barley straw was respectively incorporated into the pathogen-infected soil, and significantly suppressed the strawberry wilt caused by Fusarium oxysporum f. sp. fragariae. The wheat bran or rice straw culture of T. harzianum suppressed the disease incidence more effectively than other substrates for culture, decreasing it to 68% of the untreated control. The conidial suspension of T. harzianum alone or the suspension mixed with crab shell also effectively reduced the disease incidence. The control effectiveness of T. harzianum was high in acid soil (pH 3.5~5.5). In sandy loam soil, the disease incidences and population densities of the pathogen were decreased by the treatment of T. harzianum, while there was no significant effect of T. harzianum on the pathogen in loam soil.

• 한국균학회지
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• 제40권4호
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• pp.282-287
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• 2012

Sclerotium cepivrum은 마늘과 같은 파속작물에 발생하는 흑색썩음균핵병의 병원균이다. 기생진균 Paraconiothyrium minitans S134 균주는 마늘 흑색썩음균핵병의 생물적 방제를 위하여 선발되었다. 포장실험은 태안에서 2011년 10월부터 2012년 6월까지 실시하였다. P. minitans S134 균주의 포자현탁액($5{\times}10^6m{\ell}$)을 마늘 종구를 파종직후와 다음해 2월 하순에 주당 $100m{\ell}$씩 각각 관주처리하여 6월 5일에 흑색썩음균핵병 발생 억제효과를 조사하였다. P. minitans S134 균주를 2회 관주처리구가 6.8%, 플루퀀코나졸수화제 분의처리구가 0.4%, 무처리구가 19.5%의 흑색썩음균핵병이 발생하였다. 그러므로 P. minitans S134 균주는 마늘 흑색썩음균핵병에 대한 유망한 미생물농약으로서 가능성을 나타내었다.

• Mycobiology
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• 제28권3호
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• pp.130-132
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• 2000

While studying Bombyx mori "Zipnuae" inoculated with an entomopathogenic fungus, Paecilomyces tenuipes, a mycoparasitic hymenoascomycete with a long neck was isolated from the silkworm rearing room. The fungus was identified as Syspastospora parasitica which has been recognized as a hyperparasite on various moniliaceous hyphomycetes. A descriptive illustration is presented in this study.

• The Plant Pathology Journal
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• 제25권2호
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• pp.165-171
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• 2009

Biological control activity of Acremonium strictum BCP, a mycoparasite on Botrytis cinerea, was examined against six plant diseases such as rice blast, rice sheath blight, cucumber gray mold, tomato late blight, wheat leaf rust, and barley powdery mildew in growth chambers. The spore suspension of strain BCP showed strong control activities against five plant diseases except against wheat leaf rust. On the other hand, the culture filtrate of A. strictum BCP was effective in controlling only cucumber gray mold and barley powdery mildew. Further in vivo biocontrol activities of A. strictum BCP against tomato gray mold were investigated under greenhouse conditions. Control efficacy of the fungus on tomato gray mold increased in a concentration-dependent manner. Treatment of more than $1{\times}10^6$ spores/ml significantly controlled the disease both in tomato seedlings and in adult plants. The high disease control activity was obtained from protective application of the strain BCP, whereas the curative application did not control the disease. Foliar infections of B. cinerea were controlled with $1{\times}10^8$ spores/ml of A. strictum BCP applied up to 7 days before inoculation. In a commercial greenhouse, application of A. strictum BCP exhibited the similar control efficacy with fungicide procymidone (recommended rate, $500{\mu}g/ml$) against strawberry gray mold. These results indicate that A. strictum BCP could be developed as a biofungicide for Botrytis diseases under greenhouse conditions.

• Mycobiology
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• 제43권2호
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• pp.107-117
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• 2015

A mycoparasite, Scytalidium parasiticum sp. nov., isolated from the basidiomata of Ganoderma boninense causing basal stem rot of oil palm in Johor, Malaysia, is described and illustrated. It is distinct from other Scytalidium species in having smaller asci and ascospores (teleomorphic stage), longer arthroconidia (anamorphic stage), hyaline to yellowish chlamydospores, and producing a fluorescent pigment. The phylogenetic position of S. parasiticum was determined by sequence analyses of the internal transcribed spacers and the small-subunit ribosomal RNA gene regions. A key to identify Scytalidium species with teleomorphic stage is provided.