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Seven Unrecorded Fungal Species from Field Soils in Korea
( Mahesh Adhikari ),( Sun Kumar Gurung ),( Setu Bazie ),( Hyun Gu Lee ),( San Kosol ),( Hyang Burm Lee ),( Youn Su Lee ) 한국균학회 2018 韓國菌學會誌 Vol.46 No.1
Seven unrecorded species in the phylum Ascomycota, Emericellopsis pallida (KNU16-167), Scedosporium aurantiacum (KNU16-190), Duddingtonia flagrans (KNU16-279), Bionectria rossmaniae (KNU16-309), Exophiala xenobiotica (KNU16-79), Pseudocercosporella fraxini (KNU16-102), and Stachybotrys sansevieriae (KNU16-141), were isolated in 2016 from field soils collected from various locations in Korea. All of the species were identified and described based on morphological characteristics and rDNA internal transcribed spacer sequence data. Morphological features of these fungi were examined on potato dextrose agar, oatmeal agar, malt extract agar, Czapek yeast extract agar, and yeast extract sucrose agar. Full descriptions and illustrations of their morphological characteristics are provided.
Aspergillus caninus (Syn: Phialosimplex caninus): a New Isolate from Field Soils in Korea
( Mahesh Adhikari ),( Sun Kumar Gurung ),( Sang Woo Kim ),( Hyun Goo Lee ),( Han Jun Ju ),( Byeong Heon Gwon ),( San Kosol ),( Setu Bazie ),( Hyang Burm Lee ),( Youn Su Lee ) 한국균학회 2018 韓國菌學會誌 Vol.46 No.4
During the study of indigenous fungal communities in soil samples collected from various field soils in Sancheong, Gyeongsangnam-do, Korea in 2017, several species of Aspergillus were discovered. Aspergillus caninus (KNU17-7) was isolated, identified, and described based on the results from macro and micro morphological characteristics and molecular characterization. Morphologically, it was identified using five different growth media: potato dextrose agar, oatmeal agar, yeast extract sucrose agar, czapek yeast extract agar, and malt extract agar. For the molecular identification, sequencing of internal transcribed spacer, β-tubulin, and calmodulin genes was performed. Based on this characterization, our study isolate was identified as Aspergillus caninus. This fungal species has not been officially reported in Korea before, and we report here with its morphological and molecular phylogenetic characterization.
A New Record of Nannizziopsis mirabilis from Field Soil in Korea
( Mahesh Adhikari ),( Sun Kumar Gurung ),( Sang Woo Kim ),( Hyun Goo Lee ),( Han Jun Ju ),( Byeong Heon Gwon ),( San Kosol ),( Setu Bazie ),( Hyang Burm Lee ),( Youn Su Lee ) 한국균학회 2018 韓國菌學會誌 Vol.46 No.3
Nannizziopsis mirabilis (KNU17-67) was isolated from a field soil sample collected from Jejudo in 2017. This fungal isolate was identified and described by its morphological characters and the internal transcribed spacer rDNA gene sequencing. Potato dextrose agar medium was used to study its macro and micromorphology. In addition, a molecular phylogenetic tree was constructed for its precise confirmation as N. mirabilis . This fungal isolate has not officially been reported previously in Korea.
Discovery of Two Chrysosporium Species with Keratinolytic Activity from Field Soil in Korea
( Sun Kumar Gurung ),( Mahesh Adhikari ),( Sang Woo Kim ),( Setu Bazie ),( Hyun Seung Kim ),( Hyun Goo Lee ),( San Kosol ),( Hyang Burm Lee ),( Youn Su Lee ) 한국균학회 2018 Mycobiology Vol.46 No.3
In an ongoing survey of Korean indigenous fungi, two fungal strains (KNU16-74 and KNU16-99) belonging to the genus Chrysosporium were isolated from field soil in Gyeongnam, Korea. Morphological characterization and phylogenetic analysis using sequence of the internal transcribed spacer regions were carried out to confirm its precise identification. These strains were identified as Chrysosporium indicum (KNU16-74) and Chrysosporium fluviale (KNU16-99). To examine the keratin degradation efficiency of these two fungal species, human hair strands were incubated with fungus culture. Results revealed that these two fungal species have the ability to degrade keratin substrate. This is the first report of these two species in Korea.
Quantum Dot LED를 이용한 상추 주요 병원성 곰팡이 및 세균의 생장억제효과 기내실험
이현구(Hyun-Goo Lee),김상우(Sang-Woo Kim),마헤시 아드히카리(Mahesh Adhikari),순 쿠말 구룽(Sun Kumar Gurung),세투 바지에(Setu Bazie),산 꼬설(San Kosol),권병헌(Byeong-Heon Gwon),주한준(Han-Jun Ju),고영욱(Young-Wook Ko),김용득(Yong-Duk Kim),유 한국식물병리학회 2019 식물병연구 Vol.25 No.3
QD LED has an ideal light source for growing crops and can also be used to control plant pathogenic microorganisms. The mycelial growth inhibition effect of QD LED light on Rhizoctonia solani, Phytophthora drechsleri, Sclerotinia sclerotiorum, Sclerotinia minor, Botrytis cinerea, Fusarium oxysporum, Pectobacterium carotovorum, and Xanthomonas campestris were investigated. According to the results, BLUE (450 nm) light, suppressed S. sclerotiorum by 16.7% at 50 cm height from the light source, and 94.1% mycelial growth at 30 cm height. Mycelial growth of Sclerotinia minor was inhibited by 80.4% at 50 cm height and 36.3% at 50 cm height in B. cinerea. S. minor, and B. cinerea was inhibited by 100% mycelial growth at a height of 30 cm from the light source. At 15 cm height, all three pathogens (B. cinerea, S. minor, and S. sclerotiorum) was inhibited by 100%. QD RED (M1) and QD RED (M2) light suppressed mycelial growth of S. minor and B. cinerea by 100% at 30 cm and 15 cm height from the light source. For S. sclerotiorum, QD RED (M1) and QD RED (M2) showed 75.2% and 100% inhibition, respectively. Further experiment was conducted to know the suppression effect of lights after inoculating the fungal pathogens on lettuce crop. According to the results, QD RED (M2) suppressed the S. sclerotiorum by 59.9%. In addition, Blue (450 nm), QD RED (M1), and QD RED (M2) light reduce the infestation by 59.9%. In case of B. cinerea, disease reduction was found 84% by BLUE (450 nm) light. Results suggest that the growth inhibition of mycelium increases by Quantum dot LED light.
New Records of Aspergillus allahabadii and Penicillium sizovae from Crop Field Soil in Korea
( Setu Bazie Tagele ),( Mahesh Adhikari ),( Sun Kumar Gurung ),( Hyun Gu Lee ),( Sang Woo Kim ),( Hyun Seung Kim ),( Han Jun Ju ),( Byeong Heon Gwon ),( San Kosol ),( Hyang Burm Lee ),( Youn Su Lee ) 한국균학회 2018 Mycobiology Vol.46 No.4
Two new records of Trichocomaceae, namely Aspergillus allahabadii and Penicillium sizovae, were isolated in 2016 during a survey of fungal diversity in different crop fields locations in Gyeongnam, Korea. These species were identified based on morphological characters and phylogenetic analysis using internal transcribed spacer region and b-tubulin-encoding gene sequence data. A. allahabadii and P. sizovae have not yet been reported in Korea. Thus, this is the first report of these species in Korea, and their descriptions as well as details of their morphological characters are presented.
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.