• 제목/요약/키워드: Saprophytic fungi

검색결과 29건 처리시간 0.016초

광릉시험림(光陵試驗林)의 부생성(腐生性), 균근성(菌根性) 및 기생성(寄生性) 고등균류(高等菌類)의 분포(分布)와 다양성(多樣性)에 관(關)한 연구(硏究) (Distribution and Diversity of Saprophytic, Mycorrhizal and Parasitic Higher Fungi in Kwangnung Experimental Forest in Korea)

  • 이경준;오르손 밀러;김양섭
    • 한국산림과학회지
    • /
    • 제76권4호
    • /
    • pp.376-389
    • /
    • 1987
  • 1976년(年), 1984년(年), 1985년(年), 1986년(年)의 7월(月)부터 10월(月)까지 경기도(京畿道) 광릉(光陵)에 있는 임업시험장(林業試驗場) 중부지장(中部支場)의 시험림(試驗林)에서 고등균류(高等菌類)를 채집(採集)하여 분류(分類)하였다. 총(總) 104속(屬) 257종(種)의 담자균류(擔子菌類)를 동정(同定)하였는데, 그중(中) 부생균(腐生菌)이 75속(屬), 135종(種)으로써 전체종수(全體種數)의 52%를, 외생균근성(外生菌根性)의 28속(屬) 120종(種)으로써 47%를, 기생균(寄生菌)이 1속(屬) 2종(種)으로써 1%를 점유(點有)하고 있었다. 균근(菌根)버섯 중에서 광대버섯속(屬), 무당버섯속(屬), 젖버섯속(屬)이 전체균근(全體菌根)버섯종수(種數)의 53%를(63종(種)) 차지했으며, 이는 전체(全體)버섯종수(種數)의 25%에 해당(該當)한다. 위의 세가지속(屬)의 버섯들이 광릉시험림(光陵試驗林)의 우점종(優占種)(속(屬))이라고 할 수 있다. 문헌조사결과(文獻調査結果) 257종(種) 중(中)에서 한국미기록종(韓國未記錄種)이 77종(種)에 달함을 발견(發見)하였다.

  • PDF

봉화군 문수산과 청량산일대에 자생하는 버섯의 종다양성 (Specific Diversity of Indigenous Mushroom at Moonsu and Chungryang Mountain in Bonghwa-Gun, Kyungpook-Do, Korea)

  • 허태철;주성현
    • Current Research on Agriculture and Life Sciences
    • /
    • 제22권
    • /
    • pp.29-39
    • /
    • 2004
  • This study was conducted to provide a fundamental information for commercial, medical usage and mushroom gene preservation and to investigate the diversity of indigenous mushroom on Bonghwa-Gun. A total of 3 classes 2 subclasses 13 orders 45 families 64 genera and 118 species including saprophytic and ectomycorrhizal fungi was investigated. The mushroooms are classified into 17 families 32 genera and 80 species in Agaricales, 13 families 17 genera and 22 species in Aphllophorales, 2 families 2 genera and 2 species in Heterobasidiomycetes, 9 families 9 genera and 10 species in Gasteromycetidae. There were edible mushroom of 46 species at Moonsu and Chungryang Mountain. The mushroom occurrence was closely related to vegetation and soil environmental conditions.

  • PDF

Development of a Selective Medium for the Fungal Pathogen Fusarium graminearum Using Toxoflavin Produced by the Bacterial Pathogen Burkholderia glumae

  • Jung, Boknam;Lee, Sehee;Ha, Jiran;Park, Jong-Chul;Han, Sung-Sook;Hwang, Ingyu;Lee, Yin-Won;Lee, Jungkwan
    • The Plant Pathology Journal
    • /
    • 제29권4호
    • /
    • pp.446-450
    • /
    • 2013
  • The ascomycete fungus Fusarium graminearum is a major causal agent for Fusarium head blight in cereals and produces mycotoxins such as trichothecenes and zearalenone. Isolation of the fungal strains from air or cereals can be hampered by various other airborne fungal pathogens and saprophytic fungi. In this study, we developed a selective medium specific to F. graminearum using toxoflavin produced by the bacterial pathogen Burkholderia glumae. F. graminearum was resistant to toxoflavin, while other fungi were sensitive to this toxin. Supplementing toxoflavin into medium enhanced the isolation of F. graminearum from rice grains by suppressing the growth of saprophytic fungal species. In addition, a medium with or without toxoflavin exposed to wheat fields for 1 h had 84% or 25%, respectively, of colonies identified as F. graminearum. This selection medium provides an efficient tool for isolating F. graminearum, and can be adopted by research groups working on genetics and disease forecasting.

Antifungal Activity of Withametelin, a Withanolide Isolated from Datura metel

  • Singh, U.P.;Prakash, Om;Ray, A.B.
    • Mycobiology
    • /
    • 제29권2호
    • /
    • pp.96-99
    • /
    • 2001
  • Withametelin, a steroidal compound isolated from leaves of Datura metel L.(Solanaceae), showed antifungal activity against some plant pathogenic as well as saprophytic fungi tested in vitro. Except Curvularia maculans and Colletotrichum sp., spore germination of all the other 23 fungi was inhibited significantly at 125 to 1000 ppm. Out of the 25 fungi tested, Curvularia sp., Cercospora abelmoschi, Heterosporium sp., Erysiphe cichoracearum and Ustilago cynodontis were most sensitive as there was complete inhibition of germination at 1000 ppm. Similarly, spores of Alternaria brassicae, Curvularia lunata and Helminthosporium pennisetti showed less than 3% germination at the same concentration. Rest of the fungi showed more than 15% spore germination at the same concentration.

  • PDF

Effect of 1-corydalmine, an Alkaloid Isolated from Corydalis chaerophylla Roots on Spore Germination of Some Fungi

  • Basha, S. Ameer;Jha, R.N.;Pandey, V.B.;Singh, U.P.
    • Mycobiology
    • /
    • 제35권2호
    • /
    • pp.69-71
    • /
    • 2007
  • 1-Corydalmine, an alkaloid isolated from roots of Corydalis ehaerophylla inhibited spore germination of some plant pathogenic as well as saprophytic fungi e.g. Alternaria brassicae, A. brassicieola, A. solani, Curvularia lunata, C. maculans, C. sp., C. pallseens, Erysiphe pisi, Fusarium udum, Helminthosporium species, H. penniseti and a Heterosporium species. 1-Corydalmine significantly inhibited spore germination of all the fungi at 100 to 1500 ppm. It was effective against all the fungi at 1500 ppm. C. lunata was highly sensitive to this chemical even at 250 ppm.

Antifungal Activity of Securinine against Some Plant Pathogenic Fungi

  • Singh, Ashok K.;Pandey, M.B.;Singh, Sarita;Singh, Anil K.;Singh, U.P.
    • Mycobiology
    • /
    • 제36권2호
    • /
    • pp.99-101
    • /
    • 2008
  • The alkaloid securinine was assessed against spore germination of some plant pathogenic and saprophytic fungi (Alternaria alternata, Alternaria brassicae, Alternaria brassicicola, Curvularia lunata, Curvularia maculans, Curvularia pallenscens, Colletotrichum musae, Colletotrichum sp., Erysiphe pisi, Helminthosporium echinoclova, Helminthosporium spiciferum, Heterosporium sp.). Spore germinations of all the tested fungi were inhibited. Alternaria brassicicola, C. lunata, C. pallenscens and H. spiciferum were highly sensitive as complete inhibition of spore germination was observed at very low concentrations (200 ppm).

Effect of Tetrahydropalmatine, an Alkaloid on Spore Germination of Some Fungi

  • Maurya, S.;Srivastava, J.S.;Jha, R.N.;Panday, V.B.;Singh, U.P.
    • Mycobiology
    • /
    • 제29권3호
    • /
    • pp.142-144
    • /
    • 2001
  • The tetrahydropahnatine alkaloid was assayed against spore germination of some saprophytic and pathogenic fungi e.g., Alternaria solani, A. brassicicola, A. brassicae, A. alternata, Erysiphe pisi, Curvularia lunata, C. pallescens, C. maculans, Curvularia species, Colletotrichum species, C. musae, Helminthosporium echinoclova, H. pennisetti, H. spiciferum, and Heterosporium sp. It inhibite spore germination of all the fungi tested. Colletotrichum spp. Curvularia lunata, Helminthosporium spiciferum and Heterosporium sp. were most sensitive as complete inhibition of spore germination was observed at very low concentration(200 ppm).

  • PDF

Antifungal Activity of an Alkaloid Allosecurinine against Some Fungi

  • Singh, A.K.;Pandey, M.B.;Singh, U.P.
    • Mycobiology
    • /
    • 제35권2호
    • /
    • pp.62-64
    • /
    • 2007
  • An allosecurinine alkaloid was assayed against spore germination of some saprophytic and pathogenic fungi e.g., Alternaria alternata, A. solani, A. brassicicola, A. brassicae, Curvularia lunata, C. pallescens, C. maculans, Curvularia species, Colletotrichum species, C. musae, C. gloeosporioides, Erysiphe pisi, Fusarium udum, Helminthosporium echinoclova, H. pennisetti, H. spiciferum, and Heterosporium sp. It inhibited mild spore germination of all the fungi tested. Curvularia lunata, Curvularia sp., Collectotrichum sp., C. musae and Heterosporium sp. were most sensitive as complete inhibition of spore germination was observed at very low concentrations.

국내 분리 포식성곰팡이들의 고구마뿌리혹선충에 대한 포식 능력 비교 (Comparison of Predacity of Nematode Predatory Fungi against Meloidogyne incognita)

  • 이재국;김동근;이영기
    • 한국응용곤충학회지
    • /
    • 제39권2호
    • /
    • pp.111-115
    • /
    • 2000
  • 1995년 전국 8개도 37개점의 밭토양으로부터 분리한 52균주의 선충 포식성곰팡이를 이용하여 실내 및 온실에서 부식성선충과 뿌리혹선충을 이용하여 포식력을 비교하였다. 실내검정에서 부식성선충에 대하여 91% 이상의 포식력을 보인 균주는 51균주였고, 부리혹선충에 대하여는 26균주였으나, 온실 검정에서는 81%의 포식력을 보인 균주가 3균주로 온실검정과 실내 검정간 상관 유의성은 없었다. 선발된 3균주는 부식선충 및 뿌리혹선충에 대하여 실내 및 온실실험에서 모두 높은 포식력을 나타내었다. 이 실험으로 미루어 볼 때, 천적 포식성곰팡이 선발 시험은 반드시 포장 조건과 가장 유사한 상태에서 실시되어야 할 것으로 보인다.

  • PDF

연작장해지토양(連作障害地土壤)의 식물독소(植物毒素)에 관(關)한 연구(硏究) 제(第)3보(報) Siderophore 생성(生成) Pseudomonas 속(屬) 세균접종(細菌接種) 및 양(陽) ion 첨가(添加)가 토양부생균(土壤腐生菌)의 생육(生育)에 미치는 영향(影響) (Studies on Phytotoxin in Intensively Cultivated Upland Soil III. The Abilities of Siderophore Formation, Competition and Absorption of Fe3+ and Mn2+ with Inoculation of the Fluorescence Forming Soil Bacteria and Soil Saprophytic Fungi)

  • 이상규;서장선
    • 한국토양비료학회지
    • /
    • 제21권1호
    • /
    • pp.41-47
    • /
    • 1988
  • 토양중(土壤中) 향광색소생성세균(螢光色素生成細菌)에서 형성(形成)되는 3가철등(價鐵等)의 양(陽) ion 결합물질(結合物質)인 Siderophore 생성(生成)이 토양부생성사상균(土壤腐生成絲狀菌)의 생육(生育) 및 $Fe^{3+}$$Mn^{2+}$의 흡수이용(吸收利用)에 관(關)한 영향(影響)을 밝히고저 실내실험(室內實驗)한 결과(結果)는 다음과 같다. 1. 형광색소생성(螢光色素生成) 토양세균(土壤細菌)인 Pseudomonas putida Pt-II의 인공배지(人工培地)에 접종(接種)은 Siderophore 생성(生成)을 증가(增加)시켰다. 2. 경시적(徑時的) Siderophore 생성량(生成量)은 3가철(價鐵)의 첨가(添加)로 감소(減少)되었으며 철결합물질(鐵結合物質)인 EDDHA와 유사(類似)한 작용(作用)을 보였다. 3. Siderophore 농도(濃度)의 증가(增加)는 토양부생성(土壤腐生性) 사상균(絲狀菌)의 생육(生育)을 억제(抑制)하였으며 억제(抑制)의 정도(程度)는 독소생성(毒素生成) 사상균(絲狀菌)인 Stachybotrys chatarum과 F. solani에서 강(强)하였으나 F. oxysporum에 대해서는 억제력(抑制力)이 약(弱)하였다. 4. 인공배지내(人工培地內)에서 $Mn^{2+}$의 농도변화(濃度變化)는 Siderophore 생성(生成)에 영향(影響)하지 못하였으나 토양부생성사상균(土壤腐生性絲狀菌)의 생체중(生體重) 증가(增加)와는 정상관관계(正相關關係)를 보였음.

  • PDF