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New Records of Four Species Belonging to Eurotiales from Soil and Freshwater in Korea
( Monmi Pangging ),( Thuong T. T. Nguyen ),( Hyang Burm Lee ) 한국균학회 2019 Mycobiology Vol.47 No.2
Four strains of Penicillium and Talaromyces species are described and illustrated in an inventory of fungal species belonging to Eurotiales. The strains, CNUFC-DDS17-1, CNUFC-DDS27-1, CNUFC-PTM72-1, and CNUFC-YJW3-31, were isolated from soil and freshwater samples from South Korea. Based on their morphological characteristics and sequence analyses by the combined b-tubulin and calmodulin gene, the CNUFC-DDS17-1, CNUFC-DDS27-1, CNUFCPTM72-1, and CNUFC-YJW3-31 isolates were identified as Penicillium pasqualense, Penicillium sanguifluum, Talaromyces apiculatus, and Talaromyces liani, respectively. The designated strains were found to represent a previously undescribed species of Korean fungal biota. In this study, detailed morphological descriptions and phylogenetic relationships of these species are provided.
Seven New Records of Penicillium Species Belonging to Section Lanata-Divaricata in Korea
( Monmi Pangging ),( Thuong T. T. Nguyen ),( Hyang Burm Lee ) 한국균학회 2021 Mycobiology Vol.49 No.4
Penicillium species are known to be ubiquitous environmental saprophytes. In the survey of diversity of genus Penicillium, seven new records of Penicillium species belonging to section Lanata-Divaricata were isolated from freshwater and soil samples collected from different locations in Korea. Based on morphological characteristics and multilocus phylogenetic analysis of the rDNA internal transcribed spacer region (ITS), b-tubulin (BenA), and calmodulin (CaM) genes, the isolated strains were identified as P. annulatum, P. camponotum, P. echinu-lonalgiovense, P. globosum, P. limosum, P. onobense, and P. yunnanense, respectively. This study presents detailed phylogenetic analyses and morphological descriptions of these species that contribute to section Lanata-Divaricata in Korea.
Nine New Records of Ascomycetes from Different Niches in Korea
( Monmi Pangging ),( Thuong Thuong Thi Nguyen ),( Hyang Burm Lee ) 한국균학회 2021 韓國菌學會誌 Vol.49 No.3
We isolated nine fungal strains from different environmental materials collected from different locations during a survey of fungal diversity in Korea. Using molecular phylogenetic analyses and morphological characteristics, nine previously undescribed strains were identified and assigned to the species Collariella robusta, Fusicolla acetilerea, Hongkongmyces pedis, Hongkongmyces snookiorum, Mariannaea fusiformis, Metarhizium pemphigi , Pallidocercospora crystallina , Scopulariopsis candida , and Volutella citrinella . Diverse environmental samples may thus be a promising source for isolating and investigating novel fungal species, thus sampling efforts should be increased in future studies. This study also reports identification of some rare fungal species belonging to the genera Hongkongmyces and Pallidocercospora from Korea.
Seven Undescribed Aspergillus Species from Different Niches in Korea
Monmi Pangging,Thuong T. T. Nguyen,Hyang Burm Lee 한국균학회 2022 Mycobiology Vol.50 No.4
An investigation of species of the genus Aspergillus present in arthropod, freshwater, and soil led to the discovery of seven undescribed species in Korea. Based on their morpho- logical characteristics and molecular phylogeny analyses using a combined data set of b-tubulin (BenA) and calmodulin (CaM) sequences, the isolated strains CNUFC IGS2-5, CNUFC YJ1-19, CNUFC WD27, CNUFC U8-70, CNUFC AS2-24, CNUFC S32-1, and CNUFC U7-48, were identified as Aspergillus brunneoviolaceus, A. capensis, A. floccosus, A. inflatus, A. parvulus, A. polyporicola, and A. spelaeus, respectively. In the present study, the detailed morphological descriptions and phylogenetic relationships of these species are provided.
Yoon, Hakwon,Pangging, Monmi,Jang, Min-Hee,Hwang, Yu Sik,Chang, Yoon-Seok Elsevier 2018 Ecotoxicology and environmental safety Vol.163 No.-
<P><B>Abstract</B></P> <P>Nanoscale zerovalent iron (nZVI)-based materials are increasingly being applied in environmental remediation, thereby lead to their exposure to aquatic and terrestrial biota. However, little is known regarding the toxic effects of surface-modified nZVI on multiple species in the ecosystem. In this study, we systematically compared the toxicities of different forms of nZVIs, such as bare nZVI, carboxymethyl cellulose (CMC)-stabilized nZVI, tetrapolyphosphate (TPP)-coated nZVI and bismuth (Bi)-doped nZVI, on a range of aquatic and terrestrial organisms, including bacteria (<I>Escherichia coli</I> and <I>Bacillus subtilis</I>), plant (<I>Arabidopsis thaliana</I>), water flea (<I>Daphnia magna</I>) and earthworm (<I>Eisenia fetida</I>). The Bi- and CMC-nZVI induced adverse biological responses across all the test systems, except <I>E. fetida</I>, varying from cell death in <I>E. coli</I> and <I>B. subtilis</I> to inhibition of the physiological states in <I>D. magna</I> and <I>A. thaliana.</I> The particle characterization under exposure conditions indicated that the surface modification of nZVI played a significant role in their toxicities by changing their physicochemical properties. The underlying mechanisms by which nZVI induces toxicity might be a combination of oxidative stress and another mechanism such as cell membrane disruption, chlorosis and hypoxia. Overall, our findings could provide important implications for the development of environment-friendly nanomaterials and direct further ecotoxicological researches regarding interspecies exploration.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The toxicity of surface-modified nZVIs was investigated with suitable model species. </LI> <LI> Bi- and CMC-nZVI caused toxic effects on the tested organisms, except for earthworm. </LI> <LI> Oxidative stress via the Fenton reaction mainly contributed to the toxicity endpoints. </LI> <LI> Membrane disruption, chlorosis and hypoxia could be additional toxic factors. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Four New Records of Ascomycete Species from Korea
( Thuong T. T. Nguyen ),( Monmi Pangging ),( Seo Hee Lee ),( Hyang Burm Lee ) 한국균학회 2018 Mycobiology Vol.46 No.4
While evaluating fungal diversity in freshwater, grasshopper feces, and soil collected at Dokdo Island in Korea, four fungal strains designated CNUFC-DDS14-1, CNUFC-GHD05-1, CNUFC-DDS47-1, and CNUFC-NDR5-2 were isolated. Based on combination studies using phylogenies and morphological characteristics, the isolates were confirmed as Ascodesmis sphaerospora, Chaetomella raphigera, Gibellulopsis nigrescens, and Myrmecridium schulzeri, respectively. This is the first records of these four species from Korea.
( Thuong T. T. Nguyen ),( Monmi Pangging ),( Naila Khan Bangash ),( Hyang Burm Lee ) 한국균학회 2020 Mycobiology Vol.48 No.2
During an investigation of the fungi from the Aspergillaceae family obtained from different environmental sources in Korea, we isolated six strains, including CNUFC WJC9-1, CNUFC BPM36-33, CNUFC MSW6, CNUFC ESW1, CNUFC TM6-2, and CNUFC WD17-1. The morphology and phylogeny of these isolates were analyzed based on their partial b-tubulin (BenA) and calmodulin (CaM) gene sequences. Based on the morphological characteristics and sequence analyses, the isolates CNUFC WJC9-1, CNUFC BPM36-33, CNUFC TM6-2, and CNUFC WD17-1 were identified as A. europaeus, A. pragensis, Penicillium fluviserpens, and P. scabrosum, respectively, and isolates CNUFC MSW6 and CNUFC ESW1 were identified as A. tennesseensis. To the best of our knowledge, the species A. europaeus, A. pragensis, A. tennesseensis, P. fluviserpens, and P. scabrosum have not been previously reported 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.
Molecular and Morphological Confirmation of Three Undescribed Species of Mortierella from Korea
( Thuong T. T. Nguyen ),( Se Won Park ),( Monmi Pangging ),( Hyang Burm Lee ) 한국균학회 2019 Mycobiology Vol.47 No.1
Three fungal isolates designated as CNUFC-YR329-1, CNUFC-PTS103-1, and CNUFC-PTS2-1 were discovered during a survey of fungal diversity of the order Mortierellales from freshwater and pine tree rhizosphere soil samples in Korea. The strains were analyzed morphologically and phylogenetically based on the internal transcribed spacer (ITS) and large subunit (LSU) of ribosomal DNA gene sequences. Based on their morphology and phylogeny, the three isolates were identified as Mortierella elongata, M. horticola, and M. humilis, respectively. To the best of our knowledge, M. elongata, M. horticola, and M. humilis, belonging to an undiscovered taxon, have not been previously described in Korea.