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A New Species and Five New Records of Talaromyces (Eurotiales, Aspergillaceae) Belonging to Section Talaromyces in Korea

  • Thuong T. T. Nguyen;Hyang Burm Lee
    • Mycobiology
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    • v.51 no.5
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    • pp.320-332
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    • 2023
  • Talaromyces is a genus within the phylum Ascomycota (class Eurotiomycetes, order Eurotiales, family Trichocomaceae). Many species in this genus are known to produce diverse secondary metabolites with great potential for agricultural, medical, and pharmaceutical applications. During a survey on fungal diversity in the genus Talaromyces in Korea, six strains were isolated from soil, indoor air, and freshwater environments. Based on morphological, physiological, and multi-locus (ITS, BenA, CaM, and RPB2) phylogenetic analyses, we identified five previously unrecorded species in Korea (T. brevis, T. fusiformis, T. muroii, T. ruber, and T. soli) and a new species (T. echinulatus sp. nov.) belonging to section Talaromyces. Herein, detailed descriptions, illustrations, and phylogenetic tree are provided.

Occurrence of Fusarium Wilt in Basil Caused by Fusarium oxysporum in Korea

  • Wan-Gyu Kim;Gyo-Bin Lee;Hyo-Won Choi;Weon-Dae Cho
    • The Korean Journal of Mycology
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    • v.51 no.4
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    • pp.397-403
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    • 2023
  • Wilt symptoms were observed in basil (Ocimum basilicum) plants grown in a vinyl greenhouse located in Gokseong, Korea, during crop disease surveys conducted in August 2022. The symptoms appeared as wilting of the plants and brown to dark brown longitudinal streaks on the stems at or above the soil line. The disease incidence among the plants in the vinyl greenhouse was 5-20%. Six isolates of Fusarium sp. were obtained from stem lesions and identified as Fusarium oxysporum species complex based on their morphological characteristics. Among the isolates, two were used for phylogenetic analysis and pathogenicity test. Phylogenetic analysis revealed that these isolates belonged to F. oxysporum. Pathogenicity of the isolates was confirmed through artificial inoculation test. The symptoms induced by the isolates were similar to those observed in basil plants in the investigated vinyl greenhouse. This is the first report of F. oxysporum causing Fusarium wilt in basil in Korea.

Complete Mitochondrial Genome of Martes flavigula (Carnivora: Mustelidae) and Its Phylogenetic Status in the Genus Martes

  • Han-Na Kim;Yeong-Seok Jo
    • Animal Systematics, Evolution and Diversity
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    • v.40 no.2
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    • pp.147-149
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    • 2024
  • We report the complete mitochondrial genome sequence of endangered yellow-throated marten, Martes flavigula. The complete mitochondrial genome of M. flavigula is 16,555 bp in length. We identified 13 protein coding genes, 22 transfer RNA, two ribosomal RNA, and one control region. The mitogenome is A+T rich, with a composition of 31.3% A, 28.7% C, 13.0% G, and 27.0% T. According to phylogenetic analysis based on mitochondrial complete genomes, Martes flavigula in the subgenus Charronia was clearly distinct from the subgenus Martes. This phylogeny of the genus Martes supports the conventional systematic treatment. The genetic and taxonomic analysis in this study provides necessary information for the future studies of yellow-throated marten and the Mustelidae family.

New Finding of Golovinomyces salviae Powdery Mildew on Glechoma longituba (Lamiaceae), Besides Its Original Host Salvia spp.

  • In-Young Choi;Lamiya Abasova;Joon-Ho Choi;Young-Joon Choi;Hyeon-Dong Shin
    • The Korean Journal of Mycology
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    • v.51 no.3
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    • pp.239-243
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    • 2023
  • The Golovinomyces biocellatus complex is known to consist of powdery mildew from the Golovinomyces genus, associated with host plants from the Lamiaceae family. Recent molecular phylogenetic analyses have resolved the taxonomic composition of this complex, and Golovinomyces biocellatus sensu stricto is considered to be a pathogen of Glechoma species, globally. However, this paper presents a new finding of Golovinomyces salviae on Glechoma longituba, besides its original host species of Salvia. This information was inferred by molecular phylogenetic analyses from the multi-locus nucleotide sequence dataset of intergeneric spacer (IGS), internal transcribed spacer (ITS), large subunit (LSU) of rDNA, and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) gene. Further, the asexual morphology of this fungus is described and illustrated.

Three Unrecorded Endophytic Fungal Species Isolated from Plants in Taean-gun, Korea

  • Jae-Eui Cha;Hyeok Park;Jae-Wook Choi;Seok-Yong Park;Ahn-Heum Eom
    • The Korean Journal of Mycology
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    • v.51 no.3
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    • pp.229-237
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    • 2023
  • In the present study, we isolated endophytic fungi from different tissues of two plants, Pseudosasa japonica and Quercus serrata from Taean-gun, Korea. Morphological characteristics of the isolated fungal strains were observed. We identified the fungi based on the phylogenetic analysis using DNA sequences from the region of internal transcribed spacer, large subunit rDNA, β-tubulin, and translation elongation factor 1-α DNA. Three endophytic fungi that were not previously recorded in Korea, namely Geomyces asperulatus, Leptoxyphium fumago, and Tubakia oblongispora were identified. Here, we describe the morphological characteristics of these unrecorded fungi and present the results of the phylogenetic analysis.

First Report of Apinisia keratinophila Isolated from Soil in Korea

  • Song-Woon Nam;Leonid N. Ten;Seong-Keun Lim;Soo-Min Hong;Seung-Yeol Lee;Hee-Young Jung
    • The Korean Journal of Mycology
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    • v.52 no.2
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    • pp.115-123
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    • 2024
  • In 2022, a fungal isolate, designated KNUF-22-049, was obtained from a soil sample collected from a field in Sang-ju, Gyeongsangbuk-do, Korea. The strain exhibited cultural and morphological characteristics, including colony color and size and the shapes and sizes of conidiogenous cells and conidia, that were consistent with those of Apinisia keratinophila. A phylogenetic analysis using the sequences of the internal transcribed spacer regions and the large subunit of the nuclear ribosomal RNA gene confirmed that isolate KNUF-22-049 is most closely related to A. keratinophila CBS 947.73T at a species level. Both the morphological observations and phylogenetic analysis indicated that KNUF-22-049 is indeed an A. keratinophila strain. This study represents the first documentation of Apinisia keratinophila in Korea.