• Title/Summary/Keyword: Mycoflora

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Fungi Associated with the Hairs of Goat and Sheep in Libya

  • El-Said, A.H.M.;Sohair, T.H.;El-Hadi, A.G.
    • Mycobiology
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    • v.37 no.2
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    • pp.82-88
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    • 2009
  • The mycoflora on the hair in 25 samples of each of goats and sheep collected from Libya was analyzed using two isolation methods at $25^{\circ}C$. Seventy species and 3 varieties belonging to 31 genera were collected from the two substrates. The hairs of sheep were polluted with fungi than goat, contained high total counts and number of genera and species. Two species of true dermatophytes were isolated namely Trichophyton rubrum and T. terrestre. Several keratiophilic species were isolated of which Chrysosporium indicum, C. keratinophilum and C. tropicum were the most prevalent. The commonest saprophytes in order of frequency were members of the genera Aspergillus, Penicillium, Emericella, Alternaria and Cochliobolus.

Taxonomical Study of Noteworthy Species of Botryosphaeria in Japan

  • Hattori, Yukako;Ando, Yuho;Sasaki, Atsuko;Uechi, Nami;Nakashima, Chiharu
    • Mycobiology
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    • v.49 no.2
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    • pp.122-132
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    • 2021
  • The reexamination of the fungal genus Botryosphaeria on 12 plant species of 10 families was carried out based on molecular phylogenetic analyses using the regions of translation elongation factor 1-α, β-tubulin, DNA-directed RNA polymerase II subunit, and internal transcribed spacer region of rDNA and morphological characteristics. Japanese isolates were divided into five clades and include Botryosphaeria dothidea, B. qingyuanensis, B. sinensis, and Botryosphaeria spp. Two species, B. qingyuanensis and B. sinensis have been newly added to the Japanese mycoflora, but their host plants are not specified. Botryosphaeria tenuispora isolated from Leucothoe fontanesiana and insect galls on fruits of Aucuba japonica has been proposed as a new species.

Preliminary Study of the Ecological Impact of Forest Fires in G. Massigit, G. Gede-Pangrango National Park, West Java

  • Abdulhadi, Rochadi;Adhikerana, A.S.;Ubaidillah, R.;Suharna, N.
    • The Korean Journal of Ecology
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    • v.23 no.2
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    • pp.125-129
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    • 2000
  • Gunung Gede Pangrango National Park is one of the Long-term Ecological Research Site in Indonesia. In the late 1997, the fires have burnt and destroyed nearly 300 ha forest in this park. and G. Masigit was the largest burnt area (250 ha) of nine locations of hot spot recognized. Undergrowth vegetation got the most severe impacts. Almost undergrowth vegetation in various location were totally burnt. However, within three months following burning new seedlings such as Omalanthus populneus, Macaranga, Trema orientalis and Eupatorium appeared in the forest floor- The number of mycoflora recorded in burnt forest was interestingly increased in post forest fires site. Forest fires in G. Masigit had also affected the wild life population and diversity. For example, the number of bird species and the number of soil insects in burnt forest was significantly reduced. The forest fires had also great impact on soil. such as on soil organic contents, bulk density, colour, consistency, permeability and the activity of soil microorganisms.

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First Detection of Penicillium fellutanum from Stored Rice in Korea

  • Oh, Ji-Yeon;Sang, Mee-Kyung;Lee, Ho-Joung;Ryoo, Mun-Il;Kim, Ki-Deok
    • Research in Plant Disease
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    • v.17 no.2
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    • pp.216-221
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    • 2011
  • A representative isolate KU53 of the predominant Penicillium species was obtained from rice samples from rice processing complexes of National Agricultural Cooperative Federation in Korea. In this study, isolate KU53 was identified by its morphological and molecular characteristics. The macro- and microscopic characteristics of isolate KU53 were compared with the P. fellutanum reference isolate KCTC16913 on different media; isolate KU53 was generally identical to those of the reference isolate KCTC16913. In a molecular-based identification, the ${\beta}$-tubulin and translation elongation factor 1-alpha sequences of isolate KU53 was most closely related to those of P. fellutanum. Thus, isolate KU53 from stored rice could be identified as P. fellutanum, some isolates of which are known to produce mycotoxin-related metabolites. To our knowledge, this is the first detection of P. fellutanum from stored rice in Korea.

Occurrence of Leaf Spot Disease Caused by Alternaria crassa (Sacc.) Rands on Jimson Weed and Potential Additional Host Plants in Algeria

  • Bessadat, Nabahat;Hamon, Bruno;Bataille-Simoneau, Nelly;Chateau, Corentin;Mabrouk, Kihal;Simoneau, Philippe
    • The Plant Pathology Journal
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    • v.36 no.2
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    • pp.179-184
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    • 2020
  • A leaf spot pathogen Alternaria sp. was recovered from jimson weed, tomato, parsley, and coriander collected during surveys of blight diseases on Solanaceae and Apiaceae in Algeria. This species produced large conidial body generating long apical beaks that tapered gradually from a wide base to a narrow tip and short conidiophores originating directly from the agar surface. This species exhibited morphological traits similar to that reported for Alternaria crassa. The identification of seven strains from different hosts was confirmed by sequence analyses at the glyceraldehyde-3-phosphate dehydrogenase, RNA polymerase second largest subunit, and translation elongation factor 1-alpha loci. Further the pathogen was evaluated on jimson weed, coriander, parsley, and tomato plants, and this fungus was able to cause necrotic lesions on all inoculated plants. A. crassa is reported for the first time as a new species of the Algerian mycoflora and as a new potential pathogen for cultivated hosts.

Note on Newly Isolated Yeasts from Wild Flowers in Daejeon City, Korea (대전지역 야생화에서 분리한 미기록 효모 균주들의 보고)

  • Kang, Min-Gu;Hyun, Se-Hee;Ryu, Jin-Ju;Min, Jin-Hong;Kim, Ha-Kun;Lee, Jong-Soo
    • The Korean Journal of Mycology
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    • v.40 no.3
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    • pp.174-176
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    • 2012
  • We report morphological and physiological characteristics of newly isolated six kinds of yeasts which are new in Korean mycoflora. The yeasts were isolated from wild flowers in Daejeon city, Korea and identified by molecular analysis of the amplified internal transcribed space rDNA sequence or partial 18S rDNA sequence. Species of isolates were identified as Kuraishia capsulate, Lodderomyces elongisporus, Pseudozyma antarctica, Starmerella bombicola.

Note on Some Species of the Laboulbeniales Newly Collected from Korea(2011) (한국산 충생자낭균류의 미기록종에 관하여(2011))

  • Lee, Yong-Bo;Lim, Chae-Kyu;Na, Young-Hee
    • The Korean Journal of Mycology
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    • v.39 no.2
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    • pp.136-140
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    • 2011
  • Five species of the Laboulbeniales are reported to the Korean mycoflora. They are Laboulbenia acupalpi Spegazzini on Acupalpus hilaris Tschitscherine, L. pseudomasei Thaxter on Anoplogenius cyanescens(Hope), Rickia peyerimhoffii Maire on Scaphidium femorale Lewis, Zodiomyces odae Majewski et Sugiyama on Sternolophus rufipes Fabr. and Z. vorticellarius Thaxter on Berosus fairmairei Zaitzev. Among these species L. pseudomasei Thaxter and Z. odae Majewski et Sugiyama are the first report to South Korea. L. acupalpi Spegazzini and Z. vorticellarius Thaxter found on species which are different from previous to host insects. R. peyerimhoffii Maire is newly described main land of Korea, although it was reported from Jeju island.

Analysis of Soil mycoflora in Phytophthora Infested and Non-Infested Fields (역병의 감염 여부에 따른 토양 내 진균 분포)

  • Lee, Seon-Ju;Kim, Jong-Shik;Hong, Seung-Berm
    • Korean Journal of Soil Science and Fertilizer
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    • v.33 no.2
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    • pp.121-126
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    • 2000
  • Composition of fungal communities in three microhabitats such as soil, rhizosphere and rhizoplane were studied to understand the root environment of healthy and diseased plants in Phytophthora non-infested and infested fields, respectively. Samples were collected from the tomato- and red pepper-growing greenhouses in Kyungsang-Nam Province on April, 1999. Twenty-five species were isolated from each vegetation field using the dilution plate technique. There were a greater variety of species in infested fields than non-infested and in soils than in both rhizospheres and rhizoplanes. The number of species isolated were varied amongst the different microhabitats. A Trichoderma species was isolated only from non-infested fields.

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Taxonomic Studies on Cercospora and Allied Genera in Korea (I) (한국산 Cercospora 및 관련 속의 분류학적 연구 (I))

  • Kim, Jeong-Dong;Shin, Hyeon-Dong
    • The Korean Journal of Mycology
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    • v.26 no.3 s.86
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    • pp.327-341
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    • 1998
  • The mycoflora of Korea, especially the cercosporoid taxa, have been poorly studied in the past. For this reason, a systematic revision of these taxa has been initiated, with the eventual aim of producing a monograph of the Korean cercosporoid taxa. The present study circumscribes ten species; viz., Cercospora althaeina, C. arachidicola, C. armoraciae, C. carotae, C. ipomoeae, Mycovellosiella ferruginea, Passalora miurae, Pseudocercospora araliae, P. cannabina and P. vitis. Distinguishing morphological characteristics are described and illustrated for each species.

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Natural Occurrence of Mycotoxin and Fungi in Korean Rice (국내산 미곡에 발생하는 곰팡이와 곰팡이독소)

  • Lee, Theresa;Lee, Soohyung;Lee, Jeong-Hwa;Yun, Jong-Chul;Oh, Kyeong-Suk
    • Research in Plant Disease
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    • v.18 no.4
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    • pp.261-267
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    • 2012
  • Inspection of deteriorated rices in Korea for fungal occurrence revealed that Aspergillus was the most frequently observed genus and some isolates of the Aspergillus spp. turned out to produce aflatoxin. Diverse fungal genera including Fusarium, Aspergillus, Penicillium, or Alternaria spp. were observed in most of the rice samples. Aflatoxin occurred infrequently and the levels of aflatoxin present in the rice samples were lower than regulatory limit but Fusarium toxins such as deoxynivalenol, nivalenol, zearalenone, and fumonisin occurred frequently. In rice processing complexes, fungal and mycotoxin contamination of rice decreased by milling process, resulting in the lowest level of mycotoxin and fungi in polished rice. Currently, it appears that Korean rice and milled by-products need a safety control for Fusarium toxins rather than aflatoxin.