• 제목/요약/키워드: genus Tricholoma

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Secondary Structure and Phylogenetic Implications of ITS2 in the Genus Tricholoma

  • Suh, Seok-Jong;Kim, Jong-Guk
    • Journal of Microbiology and Biotechnology
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    • 제12권1호
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    • pp.130-136
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    • 2002
  • The internal transcribed spacer (ITS) region in the genus Tricholoma was analyzed, including for its primary nucleotide sequence and secondary structural characterization. The secondary structures of the ITS2 region in the genus Tricholoma were identified for use in bioinformatic processes to study molecular evolution and compare secondary structures. Ten newly sequenced ITS regions were added to the analysis and submitted to the GenBank database. The resulting structure from a minimum energy algorithm indicated the four-domain model, as previously suggested by others. The conserved secondary structure of the ITS2 sequences of the genus Tricholoma exhibited certain unique features, including pyrimidine tracts in the loops of domain A and a complete structure containing four domains, with motifs identified in other ITS2 secondary structures. A phylogenetic tree was derived from sequence alignment based on the secondary structures. From the resulting maximum parsimonious tree, it was found that the species in the genus Tricholoma had evolved monophyletically and were composed of four groups, as supported by the bootstrapping values and pileus color.

한국산 고등균류기(XIII) (Notes on the Korean Higher Fungi (XIII))

  • 조덕현
    • 한국자원식물학회지
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    • 제10권2호
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    • pp.194-199
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    • 1997
  • 많은 고등균류가 1995년 5월부터 10월까지 모악산도립공원과 완주군의 연석산에서 채집하였다. 그들을 동정한 결과 미기록속은 민꽃버섯속(Stereopsis)이고 미기록종은 포도벚꽃버섯(Hygrophorus arbustivus), 붉은송이(Tricholoma imbricatum), 여린애주름버섯(Mycena fragillima), 납끈적버섯(Cortinarius spilomeus), 붉은끈적버섯(C. saturninus), 전나무끈적버섯 아재비(Dermocybe semisanguinea), 자루민꽃버섯(Stereopsisburtianum), 빨강머리말뚝버섯 (Jansia borneensis)등 8종류였다. 이들 각각의 미기록속과 종에 대하여 한국 보통명을 신청하였다.

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대둔산 도립공원의 균류다양성과 균류자원 (Biodiversities and Fungal Resources of Mt.Daedun Provincial Park)

  • Cho, Duck-Hyun;Kim, Jong-Moon
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2003년도 춘계 학술발표대회
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    • pp.119-120
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    • 2003
  • Many fungi were collected at Mt. Daedun Provincial Park between the periods from March 2001 to October 2002 and they were identified. According to the results, the fungi diversity included 2 division, 3 subdivisions, 5 classes, 4 subclasses, 12 orders, 35 families, 75 genera and 153 species. Among them Ileodictyon is unrecorded genus and Ileodictyon gracile, Mycena flosum-nivium and Tricholoma lascivum are newly to Korea. Dominant family are Tricholomataceae, Russulaceae and Polyporaceae;genus Amanita and species Collybia confluens and Russula emetica In useful fungi and ecological resources, edible fungi included 51 species; culture fungi 10; poisonous fungi 18: medicinal fungi 17: anticancer fungi 22: ectomycorrhizal fungi 26 and wood rotting fungi 51, In geographical distributions of Chonbuk areas, same species are 50 spcies of Jeongup ; 56 of Mt.Manduck : 84 of Mt.Jiri : 28 of Pyonsan national park : 59 of Cheonju arboretum and 51 of Mt,Sunun.

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Pyrosequencing and Taxonomic Composition of the Fungal Community from Soil of Tricholoma matsutake in Gyeongju

  • Jeong, Minji;Choi, Doo-Ho;Cheon, Woo-Jae;Kim, Jong-Guk
    • Journal of Microbiology and Biotechnology
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    • 제31권5호
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    • pp.686-695
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    • 2021
  • Tricholoma matsutake is an ectomycorrhizal fungus that has a symbiotic relationship with the root of Pinus densiflora. Soil microbial communities greatly affect the growth of T. matsutake, however, few studies have examined the characteristics of these communities. In the present study, we analyzed soil fungal communities from Gyeongju and Yeongdeok using metagenomic pyrosequencing to investigate differences in fungal species diversity, richness, and taxonomic composition between the soil under T. matsutake fruiting bodies (Sample 2) and soil where the fairy ring of T. matsutake was no longer present (Sample 1). The same spot was investigated three times at intervals of four months to observe changes in the community. In the samples from Yeongdeok, the number of valid reads was lower than that at Gyeongju. The operational taxonomic units of most Sample 2 groups were less than those of Sample 1 groups, indicating that fungal diversity was low in the T. matsutake-dominant soil. The soil under the T. matsutake fruiting bodies was dominated by more than 51% T. matsutake. From fall to the following spring, the ratio of T. matsutake decreased. Basidiomycota was the dominant phylum in most samples. G-F1-2, G-F2-2, and Y-F1-2 had the genera Tricholoma, Umbelopsis, Oidiodendron, Sagenomella, Cladophialophora, and Phialocephala in common. G-F1-1, G-F2-1, and Y-F1-1 had 10 genera including Umbelopsis and Sagenomella in common. From fall to the following spring, the amount of phyla Basidiomycota and Mucoromycota gradually decreased but that of phylum Ascomycota increased. We suggest that the genus Umbelopsis is positively related to T. matsutake.

한국산 송이버섯에서의 18s ribosomal DNA 서열 (The 18s rDNA Sequences of the Basidiocarps of Tricholoma matsutake in Korea)

  • 이상선;홍성운
    • 한국균학회지
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    • 제26권2호통권85호
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    • pp.256-264
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    • 1998
  • 한국에서 자생하고 소나무와 외생균근을 갖는 송이에 대한 18S ribosmal DNA의 DNA 서열을 조사하였다. 4개의 지역에서 채집된 송이의 514 bp 분석결과 18S rDNA의 서열는 모두 동일하였고, 경북대학교 미생물연구실의 연구 결과와는 4 bp가 차이가 나타났다. NCBI의 BLAST search결과, T. matstake와 제일 유사한 것으로 나타났다. 분석된 514 bp의 서열비교에서는 다른 버섯균과 차이가 있는 서얼 부분을 파악하였다. 또한, 이러한 자료를 이용하여 유사도 분석에서 각각의 속에 속하는 균들은 같은 묶음을 나타내고 있으나, 과 혹은 그 이상의 단위에서의 비교는 좋은 결과가 나오지 않았다. 본 연구를 통해 외생균근의 확인 작업에 필요한 primer 제작을 위한 사전 자료를 얻었으며, 또한 조사된 염기서열도 분석할 수 있었다.

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