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Thuong T. T. Nguyen,Hyang Burm Lee 한국균학회 2023 Mycobiology Vol.51 No.5
Talaromyces is a genus within the phylum Ascomycota (class Eurotiomycetes, order Eurotiales,family Trichocomaceae). Many species in this genus are known to produce diverse secondarymetabolites with great potential for agricultural, medical, and pharmaceutical applications. During a survey on fungal diversity in the genus Talaromyces in Korea, six strains were isolatedfrom soil, indoor air, and freshwater environments. Based on morphological, physiological,and multi-locus (ITS, BenA, CaM, and RPB2) phylogenetic analyses, we identified fivepreviously 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, detaileddescriptions, illustrations, and phylogenetic tree are provided.
( Thuong T. T. Nguyen ),( Kyo Jang Kwan Noh ),( Hyang Burm Lee ) 한국균학회 2021 Mycobiology Vol.49 No.6
During a survey of fungal diversity associated with insects, mud, soil, and freshwater niches in different areas in Korea, nine interesting fungal strains were isolated. Based on their morphological characteristics and molecular phylogeny analyses, using a combined data set of b-tubulin (BenA), calmodulin (CaM), and second largest subunit of RNA polymerase (RPB2) sequences, the strains CNUFC AM-44, CNUFC JCW3-4, CNUFC S708, CNUFC WT202, CNUFC AS1-29, CNUFC JCW3-5, CNUFC JDP37, and CNUFC JDP62 were identified as Aspergillus alabamensis, A. floridensis, A. subversicolor, Penicillium flavigenum, P. laevigatum, P. lenticrescens, Talaromyces adpressus, and T. beijingensis, respectively. The strain CNUFC JT1301 belongs to series Westlingiorum in section Citrina and is phylogenetically related to P. manginii. However, slow growth when cultivated on CYA, MEA, CREA is observed and the property can be used to easily distinguish the new species from these species. Additionally, P. manginii is known to produce sclerotia, while CNUFC JT1301 strain does not. Herein, the new fungal species is proposed as P. aquadulcis sp. nov. Eight species, A. alabamensis, A. floridensis, A. subversicolor, P. flavigenum, P. laevigatum, P. lenticrescens, T. adpressus, and T. beijingensis, have not been previously reported in Korea. The present study expands the known distribution of fungal species belonging to the families Aspergillaceae and Trichocomaceae in Korea.
Nguyen, Thuong T.T.,Noh, Kyo Jang Kwan,Lee, Hyang Burm The Korean Society of Mycology 2021 韓國菌學會誌 Vol.49 No.6
During a survey of fungal diversity associated with insects, mud, soil, and freshwater niches in different areas in Korea, nine interesting fungal strains were isolated. Based on their morphological characteristics and molecular phylogeny analyses, using a combined data set of b-tubulin (BenA), calmodulin (CaM), and second largest subunit of RNA polymerase (RPB2) sequences, the strains CNUFC AM-44, CNUFC JCW3-4, CNUFC S708, CNUFC WT202, CNUFC AS1-29, CNUFC JCW3-5, CNUFC JDP37, and CNUFC JDP62 were identified as Aspergillus alabamensis, A. floridensis, A. subversicolor, Penicillium flavigenum, P. laevigatum, P. lenticrescens, Talaromyces adpressus, and T. beijingensis, respectively. The strain CNUFC JT1301 belongs to series Westlingiorum in section Citrina and is phylogenetically related to P. manginii. However, slow growth when cultivated on CYA, MEA, CREA is observed and the property can be used to easily distinguish the new species from these species. Additionally, P. manginii is known to produce sclerotia, while CNUFC JT1301 strain does not. Herein, the new fungal species is proposed as P. aquadulcis sp. nov. Eight species, A. alabamensis, A. floridensis, A. subversicolor, P. flavigenum, P. laevigatum, P. lenticrescens, T. adpressus, and T. beijingensis, have not been previously reported in Korea. The present study expands the known distribution of fungal species belonging to the families Aspergillaceae and Trichocomaceae in Korea.
Additions to the Knowledge of the Fungal Order Eurotiales in Korea: Eight Undescribed Species
Thuong T. T. Nguyen,Ki Hyun Kang,Dong Hee Kim,Su Jin Kim,Hye Yeon Mun,Wonsu Cheon,Hyang Burm Lee 한국균학회 2023 Mycobiology Vol.51 No.6
Eurotiales is a relatively large order of Ascomycetes, well-known for their ability to producesecondary metabolites with potential beneficial applications. To understand their diversity anddistribution, different environmental sources including soil, freshwater, insect, and indoor airwere investigated. Eight strains of Eurotiales were isolated and identified based on theirmorphological characters and a multi-gene phylogenetic analysis of the ITS , BenA, CaM, andRPB2 regions. We identified eight taxa that were previously not reported from Korea: Aspergillusbaeticus, A. griseoaurantiacus, A. spinulosporus, Penicillium anthracinoglaciei, P. labradorum, P. nalgiovense, Talaromyces atroroseus, and T. georgiensis. Detailed descriptions, illustrations, andphylogenetic tree for the eight new records species are presented, and information regardingthe records is also discussed.
A new record of Trichocladium griseum in Korea: morphological and molecular characterization
( Setu Bazie Tagele ),( Thuong T. T. Nguyen ),( Sang Woo Kim ),( Mahesh Adhikari ),( Sun Kumar Gurung ),( Hyun Goo Lee ),( Byeong Heon Gwon ),( Han Jun Ju ),( San Kosol ),( Hyang Burm Lee ),( Youn Su 한국균학회 2019 韓國菌學會誌 Vol.47 No.2
A unrecorded species of Trichocladium, Trichocladium griseum, was isolated in 2017 during a survey of fungal diversity in Ulsan province, South Korea. This species was identified based on morphological characteristics and phylogenetic analysis of the internal transcribed spacer (ITS) rDNA and β-tubulin gene sequences. T. griseum has not yet been reported in South Korea. Thus, we report for the first time a new record of Trichocladium griseum in Korea, and we include the descriptions and morphological illustrations of this fungus.
Six Newly Recorded Fungal Taxa from Freshwater Niche in Korea
( Hyo Jin Lim ),( Thuong T. ),( T Nguyen ),( Hyang Burm Lee ) 한국균학회 2021 Mycobiology Vol.49 No.2
Six interesting fungal strains were isolated during a survey of fungal diversity associated with freshwater; these strains were designated as CNUFC YJW2-22, CNUFC MSW11-6-2, CNUFC HRS5-3, CNUFC MSW242-6, CNUFC DMW2-2, and CNUFC CPWS-1. Based on a polyphasic approach including phylogenetic analyses of internal transcribed space (ITS), large subunit (LSU), beta-tubulin (BenA), and calmodulin (CaM) gene sequences, morphological analyses, the six strains were found to be identical to Acremonium guillematii, Cadophora novi-eboraci, Lectera nordwiniana, Mycoarthris corallina, Talaromyces siamensis, and Tetracladium globosum, respectively. To our knowledge, these are the first records of the rare Lectera, Mycoarthris, and Tetracladium genera in Korea, and the first reports of A. guillematii, C. novi-eboraci, L. nordwiniana, M. corallina, T. siamensis, and Te. globosum in a freshwater environment.
( Thuong T. T. Nguyen ),( Hee-young Jung ),( Youn Su Lee ),( Kerstin Voigt ),( Hyang Burm Lee ) 한국균학회 2017 Mycobiology Vol.45 No.4
During a survey of fungal diversity of the order Mucorales, three zygomycete isolates, CNUFC-YR113-1, CNUFCKNU16-7, and CNUFC-BS1-1 were isolated from freshwater and soil samples in Korea. The strains were analyzed both morphologically and phylogenetically based on internal transcribed spacer and 28S rDNA gene sequences. Based on their morphology and phylogeny, the CNUFC-YR113-1 and CNUFC-KNU16-7 isolates were identified as Actinomucor elegans, and CNUFC-BS1-1 was identified as Mucor minutus. To the best of our knowledge, the species A. elegans and M. minutus, belonging to an undiscovered taxon, have not been previously described in Korea.
Three Unrecorded Fungal Species from Fecal and Freshwater Samples in Korea
( Thuong T. T. Nguyen ),( Monmi Pangging ),( Hyang Burm Lee ) 한국균학회 2017 韓國菌學會誌 Vol.45 No.4
While evaluating fungal diversity in fecal and freshwater samples in Korea, three fungal strains, CNUFC-GHD83-1, CNUFC-RD8126, and CNUFC-YR2-1, were isolated from specific habitats including grasshopper and rat feces, and freshwater samples in Korea. On the basis of the morphological characteristics and phylogenetic analysis of the internal transcribed spacer (ITS) and 28S rDNA, the isolates CNUFC-GHD83-1, CNUFC-RD8126, and CNUFC-YR2-1 were identified as Albifimbria terrestris, Cephaliophora tropica, and Mariannaea aquaticola, respectively. These species have not been previously described in Korea.
Isolation and Characterization of Four Unrecorded Mucor Species in Korea
( Thuong T. T. Nguyen ),( Yu Jeong Jeon ),( Hye Yeon Mun ),( Jaeduk Goh ),( Namil Chung ),( Hyang Burm Lee ) 한국균학회 2020 Mycobiology Vol.48 No.1
During an investigation of fungi of the order Mucorales from freshwater and sediment samples in Korea, we isolated six strains, NNIBRFG6649, NNIBRFG6255, NNIBRFG1498, CNUFCYJ13, CNUFC-YR7, and NNIBRFG2739. The morphology and phylogeny of these strains were analyzed. Based on the morphological characteristics and molecular data from internal transcribed spacer (ITS) region, the isolates NNIBRFG6649 and NNIBRFG6255 were identified as Mucor abundans, and M. aligarensis, respectively. The isolates NNIBRFG1498 and CNUFC-YJ13 were identified as M. moelleri, whereas the isolates CNUFC-YR7 and NNIBRFG2739 were identified as M. heterogamus. To the best of our knowledge, M. abundans, M. aligarensis, M. moelleri, and M. heterogamus have not yet been reported in Korea.