• 제목/요약/키워드: Teleomorph

검색결과 39건 처리시간 0.025초

한국들잔디에서 분리한 Rhizoctonia solani AG 2-2(IV)의 완전세대 형성 (Formation of Teleomorph of Rhizoctonia solani AG 2-2(IV) Isolated from Zoysiagrass)

  • 이재홍;이두형
    • 한국식물병리학회지
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    • 제11권3호
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    • pp.278-281
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    • 1995
  • An isolate of Rhizoctonia solani AG 2-2(IV) from zoysiagrass was examined on development of its teleomorph by the modified soil-on-agar culture method. The most effective growth medium for sporulation was Czapek's 1/2 agar medium added with yeast extract and peptone. The characters of teleomorph of R. solani AG 2-2 (IV) are as follows. Hymenia developed on soil surface after the development of vegetative hyphae. Basidia were barrel-shaped, short clavate or obovate and were 11.4~17.9$\times$7.1~11.4 ${\mu}{\textrm}{m}$ (mean : 15.1$\times$9.0 ${\mu}{\textrm}{m}$) in size. Sterigmata were horn-shaped and slightly bent to the inner side and 4.3~18.6 ${\mu}{\textrm}{m}$ (mean : 10.3 ${\mu}{\textrm}{m}$) in size. Two to four sterigmata developed on each basidium. Basidiospores were obovate, ellipsoid to oblong-ellipsoid, hyaline, smooth, thin walled, with an apiculus, and 3.6~10.4$\times$2.9~5.7 ${\mu}{\textrm}{m}$ (mean : 7.8$\times$4.4 ${\mu}{\textrm}{m}$) in size.

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우리나라의 표고골목을 가해하는 주홍꼬리버섯의 불완전세대와 완전세대 관찰 (Observation of Anamorph (Libertella sp.) and Teleomorph (Diatrype stigma) of D. stigma Affecting Bed-log of Oak-mushroom in Korea)

  • 박원철;이봉훈;윤갑희;가강현;최중식;이태수
    • 한국균학회지
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    • 제28권1호
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    • pp.38-40
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    • 2000
  • Anamorph and teleomorph of Diatrype stigma on the bed-log inoculated with oak-mushroom (Lentinula edodes) in Korea were observed and identified. As the characters of anamorph of Diatrype stigma, conidia were hyaline, falcate or slightly curve, and $1{\sim}1.5{\times}12.5{\sim}17.5\;{\mu}m$, and conidia layer was confirmed under the bark. About teleomorph, perithecia $150{\sim}200{\times}450{\sim}500\;{\mu}m$, with ostiole ($30{\sim}40\;{\mu}m$, three- to four-sulcate). Size of ascus containing 8 ascospores was $5{\sim}6{\times}30{\sim}40\;{\mu}m$. Ascospores were hyaline to pale brown, $1.5{\sim}2{\times}5{\sim}7.5\;{\mu}m$ and mostly biguttulate.

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Cordyceps bassiana and Production of Stromata in vitro Showing Beauveria Anamorph in Korea

  • Sung, Jae-Mo;Lee, Je-O;Humber Richard A.;Sung, Gi-Ho;Shrestha Bhushan
    • Mycobiology
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    • 제34권1호
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    • pp.1-6
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    • 2006
  • A Cordyceps species was found with a Beauveria anamorph state on larval insect cadavers on Obong mountains in Gangwon Provinces, Republic of Korea. Cultures from discharged ascospores formed an anamorph identifiable as Beauveria bassiana. This teleomorph-anamorph connection was also confirmed by the in vitro production of fertile ascomata from conidial cultures with morphology like that of field-collected specimen. This is the first report of in vitro production of a teleomorph for any Beauveria species. The Cordyceps species has been conspecified as Cordyceps bassiana, a species described from China with B. bassiana anamorph.

Simple Method to Produce in vitro Pyrenophora tritici-repentis Teleomorph

  • Benslimane, Hamida
    • The Plant Pathology Journal
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    • 제30권4호
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    • pp.437-439
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    • 2014
  • A fungus Pyrenophora tritici-repentis induces tan spot of wheat which is a foliar disease that causes yield loss to wheat crops worldwide. In this study, a new, simple and non-costly technique was performed to produce the sexual stage of this fungus in culture, within 9 weeks using wheat straw. This protocol will be helpful to researchers studying the biology of sexual stage development, disease epidemiology and genetics of this fungus.

표고골목을 가해하는 주홍꼬리버섯의 완전세대 변화 및 2차 오염 해균상 (Changes of Teleomorph of Diatrype stigma Damaging Bed-log of Shiitake and Secondary Harmful Fungi)

  • 박원철;이봉훈;김세권
    • 한국균학회지
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    • 제31권2호
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    • pp.53-58
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    • 2003
  • 1999년 12월부터 2001년 8월까지 주홍꼬리버섯 완전세대 형성 이후의 변화와 2차적으로 침입하는 다른 오염해 균을 조사하였다. 주홍꼬리버섯 자좌의 표면 색은 12개월 후 모두 적갈색에서 흑갈색으로 변하였다. 공구는 시간이 경과함에 따라 완전세대형성 초기보다 크기가 작아지고 단위면적당 갯수가 적어지다가 20개월 후에는 대부분의 시험골목에서 사라졌다. 자낭각과 자낭포자도 자좌 표면의 색 변화와 공구의 유무에 의해 반드시 영향을 받는 것은 아니었지만, 종균접종 이듬해 4월부터 서서히 없어지다가 20개월 후에는 시험골목 중 10% 정도에서만 포자를 갖는 자낭각이 발견되었다. 주홍꼬리버섯에 오염된 표고골목에 2차적으로 발생하는 다른 종류의 해균조사 결과, 검은혹버섯, Nodulisporium sp., 치마버섯, Trichoderma spp. 등이 주홍꼬리버섯 자좌 위에서 발견되었고 Penicillum sp.은 주홍꼬리버섯 포자 퇴 위에서 발견되었다. 이밖에 Hypoxylon howeianum, Enteridium lycoperdon, Fuligo sp., Physaurm umbiliciferum, Stemonitis fusca 등 4종의 점균류가 관찰되었다. 또한, 종균접종 이듬해 4월부터 일부 골목에서 주홍꼬리 버섯의 불완전세대(Libertella sp.)가 다시 발생하였다.

팽나무 뒷면흰가루병을 일으키는 병원균 Pleochaeta shiraiana의 존재 확인 (Confirmation of the Presence of Pleochaeta shiraiana Associated with Powdery Mildew of Celtis sinensis in Korea)

  • 이승규;이상현;조성은;박지현;신현동
    • 식물병연구
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    • 제17권3호
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    • pp.391-395
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    • 2011
  • 지금까지 우리나라에서 팽나무 뒷면흰가루병 및 병원균 Pleochaeta shiraiana의 존재에 대하여 확실하게 알려지지 않았으므로 이를 확인하기 위하여 고려대학교 표본실에 보존된 9개 시료를 대상으로 병원균의 무성세대와 유성세대의 형태적 특징을 현미경으로 관찰하고 기록하였다. 또한 4개 시료에서 획득한 ITS 염기서열을 일본의 2개 시료에서 알려진 자료와 비교하여 99% 이상의 상동성을 확인하였다. 이로써 P. shiraiana에 의한 뒷면흰가루병이 우리나라에서 발생함을 확인할 수 있었다.

Pinnal dermatitis caused by Arthroderma vanbreuseghemii in a Rex rabbit

  • Rhim, Haerin;Na, Ki-Jeong;Han, Jae-Ik
    • 한국동물위생학회지
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    • 제40권1호
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    • pp.75-78
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    • 2017
  • This report describes a case of pinnal fungal dermatitis caused by Arthroderma vanbreuseghemii in a Rex rabbit diagnosed by clinical signs, macro- and microscopic examination, molecular and phylogenetic analyses. This is the first description of natural A. vanbreuseghemii infection in rabbits in South Korea.

Colletotrichum gloeosporioides에 의한 땅콩 탄저병 (Anthracnose of Peanut Caused by Colletotrichum gloeosporioides)

  • 김주희;이용훈;이왕휴
    • 한국식물병리학회지
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    • 제14권6호
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    • pp.614-617
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    • 1998
  • Anthracnose of peanut (Arachis hypogaea L.) was found in the peanut cultivating fields in Iksan, Korea in September 1997. Infected plants showed irregularly circular water soaking brown lesions. In the severe case, leaves and stems were entirely died. The causal fungus of anthracnose isolated from the diseased plants was identified as Colletotrichum gloeosporioides Penz. and its teleomorph was Glomerella cingulata (Stonem.) Spauld. & Sch. according to the criteria based on the cultural and morphological characteristics. By arificial inoculation with fungal spores on healthy peanut, anthracnose symptom was observed 15 days after inoculation.

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