• 제목/요약/키워드: Korean Society of Mycology

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Effect of Ent-norsecurinine, an Alkaloid, on Spore Germination of Some Fungi

  • Goel, Mitul;Maurya, S.;Pandey, V.B.;Singh, V.P.;Singh, A.K.;Singh, U.P.
    • Mycobiology
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    • 제30권4호
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    • pp.225-227
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    • 2002
  • The inhibitory activity of ent-norsecurinine alkaloid was evaluated against spore germination of some plant pathogenic fungi(Curvularia maculans, Curvularia species, C. palliscens, Colletotrichum gloeosporioides, Colletotrichum species, Afternaria solani, A. brassicae, Fusarium udum, Helminthosporium echinoclova and H. penniseti). It inhibited spore germination of all the test fungi. C. maculans, C. species, and C. palliscens were the most sensitive as complete inhibition of spore germination was observed at 1000 ppm. A. solani was not inhibited by this chemical.

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
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    • 제29권3호
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    • pp.142-144
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    • 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).

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Variation in Biochemical Composition among Indian Isolates of Sclerotinia scle-rotiorum

  • Basha S. Ameer;Sarma B.K.;Singh K.P.;Singh U.P.
    • Mycobiology
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    • 제34권3호
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    • pp.114-119
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    • 2006
  • Biochemical variability among 20 Indian isolates of Sclerotinia sclerotiorum collected from different hosts/soil samples from different localities in India is reported. High Performance Liquid Chromatographic (HPLC) analysis of ethyl acetate fraction of culture filtrate, mycelia, sclerotia and sclerotial exudate showed $15{\sim}23$ peaks but only 11 could be identified. They were tannic, gallic, oxalic, caffeic, vanillic, ferulic, O-coumeric, chlorogenic, cinnamic, salicylic and gentisic acids. The amount of phenolic compounds varied among the culture filtrates, mycelia, sclerotia and sclerotial exudates of S. sclerotiorum.

Environmental Factors and Bioremediation of Xenobiotics Using White Rot Fungi

  • Magan, Naresh;Fragoeiro, Silvia;Bastos, Catarina
    • Mycobiology
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    • 제38권4호
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    • pp.238-248
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    • 2010
  • This review provides background information on the importance of bioremediation approaches. It describes the roles of fungi, specifically white rot fungi, and their extracellular enzymes, laccases, ligninases, and peroxidises, in the degradation of xenobiotic compounds such as single and mixtures of pesticides. We discuss the importance of abiotic factors such as water potential, temperature, and pH stress when considering an environmental screening approach, and examples are provided of the differential effect of white rot fungi on the degradation of single and mixtures of pesticides using fungi such as Trametes versicolor and Phanerochaete chrysosporium. We also explore the formulation and delivery of fungal bioremedial inoculants to terrestrial ecosystems as well as the use of spent mushroom compost as an approach. Future areas for research and potential exploitation of new techniques are also considered.

Morphological Variations in Conidia of Arthrobotrys oligospora on Different Media

  • Singh, R.K.;Kumar, Niranjan;Singh, K.P.
    • Mycobiology
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    • 제33권2호
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    • pp.118-120
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    • 2005
  • Most commonly occurring predacious fungus Arthrobotrys oligospora showed great variation in size and shape of conidia on some media. The formation of larger conidia was recorded on beef extract and nutrient agar media. The length of conidia in Richard's YPSS, Sabouraud's, PDA and com meal agar media was of medium size while smaller conidia were produced on Czapek's, Jensen's, Martin's medium. Maximum width of conidia was recorded on YPSS medium followed by Sabouraud's medium. The average size of spores on nematode infested com meal agar medium was slightly increased than those on com meal agar medium.

Phenolic Acid Changes in Mycelia of Sclerotium rolfsii After Garlic and Onion Supplementation in a Broth Medium

  • Pandey, M.K.;Singh, D.P.;Singh, U.P.
    • Mycobiology
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    • 제33권3호
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    • pp.137-141
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    • 2005
  • High performance liquid chromatographic (HPLC) analysis of mycelia of Sclerotium rolfsii grown in broth medium supplemented with garlic (Allium sativum) and onion (Allium cepa) was carried out to estimate qualitative and quantitative changes in phenolic acids. Several phenolic acids, such as gallic, chlorogenic; ferulic, o-coumaric and cinnamic acids were detected in varied amounts in mycelia grown on such media as compared to control. Phenolic acids represents a wide range of secondary metabolite found in the cells of plants and microbes including fungi. The growth characters of S. rolfsii in various supplements also varied from thin and transparent to thick and opaque.

A New Technique for Single Spore Isolation of Two Predacious Fungi Forming Constricting Ring

  • Singh, Kalika Prasad;Kumar, Dharmendra;Bandyopadhyay, Pinaki
    • Mycobiology
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    • 제32권4호
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    • pp.197-198
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    • 2004
  • A new technique for single spore isolation was developed for predacious fungi forming constricting rings directly on the spores using Dactylaria brochopaga and Arthrobotrys dactyloides. Constricting rings were induced directly on the spores by transferring the spores in 25 ppm solution of DL-Valine in sterile distilled water. Freshly hatched and thoroughly washed second stage juveniles of Meloidogyne incognita were transferred into cavity blocks containing induced rings for trapping and killing of nematodes. The killed nematodes were surface sterilized with streptomycin and inoculated into petri dishes containing maize meal agar media with 100 ppm streptomycin. The petri dishes were incubated at $29{\pm}1^{\circ}C$ for few days which yielded axenic culture of these fungi.

Sporocarp development of Pleurotus tuber-regium Fr. under different watering systems

  • Okhuoya, J.A.;Ajerio, C.
    • 한국균학회지
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    • 제16권4호
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    • pp.207-209
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    • 1988
  • Sporocarps of Pleurotus tuber-regium Fr. were subjected to aerial and substrate(soil) watering sytems. Although aerial watering enhanced quick enlargment of pilei, those watered indirectly through the soil developed more naturally pigmented sporophores and with higher overall yield. Thus, substrate(soil) watering after emergence is preferred to direct watering of fruits.

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