• 제목/요약/키워드: Nematode-trapping fungi

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선충포획균의 분리 및 동정 (Isolation and Indentification of Nematode-Trapping Fungi)

  • 박용근;이영록
    • 미생물학회지
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    • 제21권3호
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    • pp.127-134
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    • 1983
  • 42 strains belonging to the genus Arthrobotrys and 17 strains belonging to the genus Monacrosporium, were isolated from soil specimens collected from the various localities in South Korea. 4 species of Arthrobotry and 2 species of Monacrosporium, which are unrecorded in Korea, were identified according to the Harrd and Cooke classification key, respectively. The species identified are as follows ; A.conoides, A. oligospora, A. musiformis, A. oviformis, M. crystosporum nd M. salinum.

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First Report of Two Nematode-trapping Fungi, Monacrosporium ullum sp. nov. and Arthrobotrys amerospora, from Korea

  • Kim, Dong-Geun;Ryu, Young-Hyun;Hwang, Hyung-Gue
    • The Plant Pathology Journal
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    • 제22권2호
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    • pp.174-178
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    • 2006
  • Monacroporium ullum sp. nov. the captures nematodes on adhesive spherical knobs was isolated from soil around Codonopsis lanceolata at Ulleung island, Korea. The spindle-shaped conidia sized $17-44{\mu}m\;(26.5{\mu}m)\;long,\;7-10{\mu}m\;(8.1{\mu}m)$ wide, containing from 1 to 4 cross-walls but most often divided by 2 septa (47%). Resting bodies sized $57{\times}30{\mu}m$. Arthrobotrys amerospora has almost spherical non-septate conidia with a small truncate protuberance at the base and sized $20-27{\mu}m\;(23.3){\mu}m$ long and $11-17{\mu}m\;(14.1){\mu}m$ wide. Conidiophores are somewhat longer $362.8{\mu}m\;(311-418{\mu}m)$ than its original description ($75-250{\mu}m$).

국내 미기록 선충포식성 곰팡이 Arthrobotrys sinensis의 형태 및 분류 (First Report of an Unrecorded Nematode-trapping Fungus, Arthrobotrys sinensis in Korea)

  • 하지혜;강헌일;강항원;김동근;이동운;김용철;최인수
    • 한국응용곤충학회지
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    • 제58권1호
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    • pp.9-13
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    • 2019
  • 선충포식성 곰팡이는 선충을 포획하기 위하여 다양하고 특수한 기관을 사용한다. 국내 성주지역의 참외 경작지 뿌리 주변의 토양에서 3차원 접착 고리를 형성하여 선충을 포획하는 곰팡이를 분리하였다. 곰팡이의 미세형태 구조를 관찰한 결과 분생포자병은 직립형으로 길이는 $290{\sim}528(342.8){\mu}m$으로 길었으며, 계란형의 $30.5{\times}20.3{\mu}m$ 크기를 가진 1~3개의 분생포자를 형성하였다. 균주의 rDNA의 5.8 S 영역의 염기서열을 분석한 결과, Arthrobotrys속의 계통군에 속하였으며, 특히 Arthrobotrys sinensis와 99%의 유사성을 보였다. 형태적 특징과 분자생물학적 계통 분석을 바탕으로 본 균주는 A. sinensis로 확인되었으며, 이는 국내 미기록종으로 식물기생성선충의 생물학적 조절을 위한 하나의 자원이 될 수 있다.

Effect of Fertilizers and Neem Cake Amendment in Soil on Spore Germination of Arthrobotrys dactyloides

  • Kumar, D.;Singh, K.P.;Jaiswal, R.K.
    • Mycobiology
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    • 제33권4호
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    • pp.194-199
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    • 2005
  • Application of fertilizers such as urea, diammonium phosphate (DAP) and muriate of potash in soil adversely affected the spore germination of Arthrobotrys dactyloides. Amendment of soil with urea at the concentrations of 1.0%, 0.5% and 0.1 % completely inhibited spore germination and direct trap formation on the conidium, whereas muriate of potash delayed and reduced the spore germination even at the lowest concentration. DAP also inhibited spore germination at 1.0% concentration, while at lower concentration the percentage of spore germination was reduced. Application of neem cake at the concentration of 0.5% also inhibited spore germination after 24 h of amendment. The inhibitory effect of neem cake was reduced after 15 days of amendment, while after 30 days after amendment the inhibitory effect was completely lost and the spore germinated by direct trap as in unamended soil. Nematodes were not attracted to ungerminated spores after 24 h of amendment. After 15 days of amendment nematodes were attracted to agar blocks containing fewer germinated spores after 24 h of incubation but after 48 h of incubation large number of nematodes were attracted and trapped by the germinated spores with direct traps. After 30 days of amendment, larger number of nematodes were attracted and trapped by direct traps.