• Title/Summary/Keyword: Lepiota

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Studies on the Constituents of Higher Fungi of Korea (한국산 고등 균류의 성분에 관한 연구)

  • 이규선
    • YAKHAK HOEJI
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    • v.23 no.3_4
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    • pp.153-158
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    • 1979
  • Free amino acids in extracts and total amino acids in hydrolysates of eight species of higher fungi were analyzed by an amino acid autoanalyzer. Twenty amino acids were analyzed in eight species of higher fungi. 1) of all free amino acids contained in higher fungi, alanine is the richest, and then comes glutamic acid, serine, arginine, proline and histidine in that order. Of all total amino acids contained in higher fungi, glutamic acid is the richest, and then comes proline, valine, aspartic acid, alanine, leucine in that order. Especially Russula fragilis and Lepiota procera contain large quantity of glutamic acid. 2) Gross contents of free amino acids in the extracts is high in order of Lepiota procera, Phylloporus rhodoxanthus, Russula fragilis, Tylopilus felleus and total amino acids in hydrolysates is high in Phylloporus rhodoxanthus, Lepiota procera, Russula fragilis, Lentinus lepideus. 3) Total amount of essential amino acids in the extracts was high in Lepiota procera, Phylloporus rhodoxanthus, Tylopilus felleus, Xylaria hypoxylon, Lentinus lepideus, Russula fragilis, Lactarius piperatus and Calocybe gambosa and in the hydrolysates of Phylloparus rhodoxanthus, Russula fragilis, Lepiota procera, Tylopilus felleus, Lentinus lepideus, Lactarius piperatus, Calocybe gambosa and Xylaria hypoxylon in that order, respectively.

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Determination of Amatoxins in Lepiota brunneoincarnata and Lepiota venenata by High-Performance Liquid Chromatography Coupled with Mass Spectrometry

  • Long, Pan;Fan, Fengxia;Xu, Bin;He, Zhengmi;Su, Yuting;Zhang, Ping;Xie, Jianwei;Chen, Zuohong
    • Mycobiology
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    • v.48 no.3
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    • pp.204-209
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    • 2020
  • Three hepatic failure poisoning incidents caused by Lepiota brunneoincarnata and Lepiota venenata mushrooms have been occurred in China in 2017, L. venenata has been described as a new species. However, the cyclopeptide toxins of these lethal mushrooms remain poorly understood. In this study, the composition and content of amatoxins in L. brunneoincarnata and L. venenata are analyzed and compared, the analysis of composition and content of amatoxins in L. venenata are reported for the first time. The results showed that β-amanitin (β-AMA), α-amanitin (α-AMA), amanin, and amaninamide were identified in L. brunneoincarnata, and α-AMA, amanin II (an analog of amanin), and an unknown compound were identified in L. venenata. The differences between L. brunneoincarnata and L. venenata in the identified compounds provide chemical evidence for L. venenata as a new species. Quantitative analysis shows that α-AMA concentrations in L. brunneoincarnata and L. venenata were 0.72-1.97 mg/g dry weight, β-AMA concentrations in L. brunneoincarnata were 0.57-0.94 mg/g dry weight, and β-AMA was absent in L. venenata.

Notes on the Korean Higher Fungi (X I) (한국산 고등기 (X I))

  • DuckHyunCho
    • Korean Journal of Plant Resources
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    • v.8 no.3
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    • pp.253-258
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    • 1995
  • Many higher fungi were collected at. Mt. Manduck, Chonju city, Mt. Naejang National Park. Mt. Balwang and Wolchul National Park. These species were identified. According to the results, Hygrocybe marchii, Hydropus floccipes, Lepiota hystrix, Entoloma cinchonense and E. hypoporhryum E. mellum were newly to Korea.

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Notes on the Korean Higher Fungi(XV)

  • Cho, Duck-Hyun;Yoo, lck-Dong
    • Plant Resources
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    • v.2 no.2
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    • pp.133-138
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    • 1999
  • Many higher fungi were collected at Pyonsan penisula Mt.Odae, Korean Highway Cororation Arboretum, Mt.Moak, Yaksan island from 1996 to 1998. They were identified and according to the results, Hygrocybe coccineocrenata, Collybia neofusipes, Marasmius wettsteinii, Amanita esculenta, Lepiota fuscipes, Leucocoprinus subglobisporus, Cystoderma japonicum and Coprinus narcoticus are newly to Korea. They were designed Korean common name by author.

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Antitumor Components of the Cultured Mycelia of Lepiota procera (갓버섯의 항균 분석)

  • 김병각;심미자;김옥남;김하원;최응칠
    • Journal of Food Hygiene and Safety
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    • v.4 no.2
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    • pp.109-118
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    • 1989
  • To find antitumor components in the cultured mycelia of Lepiota procera, the proteinpolysaccharide obtained from the mycelia was subjected to DEAE - Sephadex A-50 column chromatography and Sepharose-4B gel filtration. Of the fractions, the purified Fraction C1 was named lepiotan and examined for antitumor activity against the solid form of sarcoma 180 in ICR mice. The inhibition ratio of lepiotan was 64% at the dose of 10 mg/kg/day for 10days. The chemical analysis of lepiotan showed 60% polysaccharide and 21 % protein. The polysaccharide moiety was found to be a heteromannoglucan which consisted of 46.3% glucose, 40.2% mannose and 11.0% fucose. When the antitumor component, Fraction A, was examined for immunopotentiation activity, it was found to increase the number of plaques in hemolytic plaque assay and to restore the immunity in the tumor-bearing mice up to 89.7% of the normal level. Also the antitumor acitivity was suppressed by the treatment with carrageenan, an antimacrophage agent. These results indicate that the antitumor activity was exerted through immunopotentiation, but not through direct cytotoxicity against the tumor.

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Fungal Flora in Bamboo Forest of Korea (I) (한국(韓國) 죽림산(竹林産) 고등(高等) 균류(菌類))

  • Lee, Ji-Yul;Cho, Duck-Hyun
    • The Korean Journal of Mycology
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    • v.4 no.1
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    • pp.11-16
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    • 1976
  • 40 specimens of higher fungi were collected at the bamboo forest of Damyang, Jyunranam-Do, and Kyungju, Kyungsangnam-Do during May 6, August 17, 29 and October 29, 1976. These fungi were identified. They were composed of 3 orders, 10 families, 19 geaera and 23 species. Among them, Clitocybe catancifloccosa S. Ito et Imal, Collybia matris S. Ito et Imal, Mcrasiellus lactea (Pers. ex Fr.), Lepiota hetieri Boud. and Paxillus atrotomentosus (Fr.) Fr. var. bambusinus Baker et Dale were found to be new in Korea.

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Notes on Korean Agaricales (II) (한국산(韓國産) 주름버섯 목(目)에 대한 보고(報告))

  • Kim, Yang-Sop;Park, Yong-Hwan;Shin, Kwan-Chull
    • The Korean Journal of Mycology
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    • v.6 no.2
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    • pp.37-42
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    • 1978
  • Seven species of higher fungi which were collected at Kwangneung, Mt. Hanla, Mt. Chiri, Taeqwanryung, and Yeongdong district, and preserved in the institute from 1975 to 1977, were classified into new korean species. Also, two species of fungi were collected from April to October 1978 and identified at Suweon, Kwangneung, and Mt. Chiri. They were as follows: Hygrophorus pratensis, H. flavescens, H. puniceus, Rhodophyllus rhodopolious Lepiota atrosquamulosa, Leucocoprinus fragilissima Lyophyllum semitale, Russula delica and Xerocomus badius.

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Investigation on Artificial Culture for New Edible Wild Mushrooms (야생(野生) 식용(食用)버섯의 인공재배(人工栽培) 검토(檢討))

  • Park, Yeong-Hwan;Kim, Yang-Sup;Cha, Dong-Yule
    • The Korean Journal of Mycology
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    • v.6 no.2
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    • pp.25-30
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    • 1978
  • Present experiments were conducted to determine the possibility of cultivation of 9 edible wild species selected among the higher fungi growing in Korea. In the investigation on the mycelial growth according t6o the different media, the mycelial growth of Coprinus comatus was fast on the CSA medium, when malt extract was added to the basal medium PSA, the mycelial of Lapista nuda and Auricularia auricula-judae was fast in growth and density. In the spawning, the mycelial growth of Pholiota squarrosa on the oak tree's sawdust, Pleurotus cornucopiae on the broad-leaves' sawdust, and Coprinus comatus on the compost was respectably fast and also it shown to be possibility of artificial cultivation owing to their carporphore budding when Coprinus comatus and Lepiota alborubescens cultivated on the rice straw, Auricularia auriculajudae and Pleurotus cornucopiae on the sawdust of the popla and Pholiota squarrosaon the sawdust of the oak tree.

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Notes on the Higher fungi in Kangwon-do (I) - on Some Unrecorded Species - (강원지역의 고등균류기 (I) -수종 미기록종에 대하여-)

  • Kim, Yang-Sup;Seok, Soon-Ja;Sung, Jae-Mo
    • The Korean Journal of Mycology
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    • v.26 no.2 s.85
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    • pp.153-162
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    • 1998
  • Some fresh fungi collected at three mountain areas in Kangwon-do in 1996 and dried specimens collected before 1996 were observed and identified. Five species, Lepiota grangei, Baeospora myriadophylla, Mycena acicula, Clitocybe sinopica and Gerronema strombodes were confirmed new to Korea and registered here with full descriptions.

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A Preliminary Screening of 46 Korean Basidiomycetes Including Hebeloma crustulineforme for Their Hemolytic Activities (무우자갈버섯(Hebeloma crustulineforme)을 위시한 한국산 담자균류 46종의 용혈활성 검색)

  • Yang, Hee-Jung;Chung, Soo-Hyun;Kim, Jin-Hyang;Chung, Kyeong-Soo
    • The Korean Journal of Mycology
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    • v.25 no.4 s.83
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    • pp.253-256
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    • 1997
  • To elucidate the hemolytic toxicities of Korean basidiomycetes, the cold-water extracts of 46 wild mushrooms were tested for hemolytic activity on mouse erythrocytes. Twelve species including Amanita esculenta, A. griseofarinosa, A. longistriata, A. melleiceps, A. phalloides, A. rubescence, A. spissacea, A. vaginata, Hebeloma crustuliniforme, Lepiota cygnea, Macrolepiota procera, and Oudemansiella platyphylla showed strong hemolytic activities. Of these, A. griseofarinosa and H. crustuliniforme showed no decrease in their hemolytic activity even after five minutes' boiling.

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