• Title/Summary/Keyword: Pezizales

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The Genus Acervus from Southwestern China and Northern Thailand

  • Zeng, Ming;Zhao, Qi;Gentekaki, Eleni;Hyde, Kevin D.;Zhao, Yongchang
    • Mycobiology
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    • v.48 no.6
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    • pp.464-475
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    • 2020
  • Acervus (Pyronemataceae, Pezizales) is a saprobic genus in Pezizomycetes, characterized by colored apothecia, subcylindrical to cylindrical asci and guttulate ascospores. We collected four Acervus samples from China and Thailand. Descriptions and illustrations are introduced for all fresh samples. One new record of A. globulosus from Thailand, one new species, A. rufus, two known species, A. epispartius and A. stipitatus from China are reported. Phylogenetic analysis based on five genes, the large subunit rRNA (LSU), the translation elongation factor-1 alpha (tef1-α), the second largest subunit of RNA polymerase II (rpb2), the largest subunit of RNA polymerase II (rpb1), and the small subunit rRNA (SSU), revealed the distinct position of the new species. The new species is set apart by its red apothecia. A key to Acervus species is also given.

Taxonomic Re-evaluation of Korean Gyromitra Species Based on Morphological and Phylogenetical Studies

  • Cho, Sung-Eun;Kwag, Young-Nam;Han, Sang-Kuk;Kim, Chang Sun
    • The Korean Journal of Mycology
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    • v.49 no.3
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    • pp.363-371
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    • 2021
  • Several species of Gyromitra are highly poisonous when consumed raw the presence of gyromitrin. In this study, Gyromitra specimens deposited in the Korea National Arboretum were re-examined and subjected to molecular sequence analysis. G. gigas, G. aff. perlata, and G. tianshanensis were identified based on their morphological features and molecular phylogenetic analysis for the first time in Korea. Furthermore, internal transcribed spacer and 28S rRNA sequences of G. esculenta and G. infula were analyzed to confirm their phylogeny.

Identification of Ectomycorrhizal Fungi from Pinus densiflora Seedlings at an Abandoned Coal Mining Spoils

  • Park, Sang-Hyeon;Jeong, Hyeon-Suk;Lee, Yoo-Mee;Eom, Ahn-Heum;Lee, Chang-Seok
    • Journal of Ecology and Environment
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    • v.29 no.2
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    • pp.143-149
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    • 2006
  • This study was conducted to identify native ectomycorrhizal (ECM) fungi colonizing Pinus densiflora for revegetation of abandoned coal mines in Korea. Seedlings of P. densiflora growing on coal mining spoils of a study site in Samcheok were collected. ECM roots were observed under stereomicroscope and their DNA were extracted from each root tip for a seedling for molecular identification. A PCR primer pair specific to fungi, ITS1F and ITS4, was used to amplify fungal DNA. Restriction enzymes, Alul and Hinfl were used for restriction fragment length polymorphism (RFLP). Combined with RFLP profiles and sequence analysis, total twenty one taxa were identified from the ECM root tips. Basidiomycetous fungi including Thelephoraceae, Pezizales, Laccaria, Pisolithus and Ascomycetous fungi including ericoid mycorrhizal fungi were identified from this study. Results showed that the most frequently found in the study sites was a species in Thelephoraceae. A possible use of ECM fungi identified in this study for the revegetation of abandoned coal mines with P. densiflora was discussed.