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( Setu Bazie Tagele ),( Hyun Gu Lee ),( Sang Woo Kim ),( Youn Su Lee ) 한국미생물 · 생명공학회 2019 Journal of microbiology and biotechnology Vol.29 No.1
In this study, strain KNU17Pc1 was tested for its antifungal activity against Rhizoctonia solani AG-1(IA), which causes banded leaf and sheath blight (BLSB) of maize. KNU17Pc1 was tested further for its broad-spectrum antifungal activity and in vitro plant growth promoting (PGP) traits. In addition, the in vivo effects of KNU17Pc1 on reduction of BLSB severity and seedling growth promotion of two maize cultivars under greenhouse conditions were investigated. On the basis of multilocus sequence analysis (MLSA), KNU17Pc1 was confirmed as P. chlororaphis subsp. aurantiaca. The study revealed that KNU17Pc1 had strong in vitro antifungal activity and was effective toward all in vitro PGP traits except phosphate solubilization. In this study, for the first time, a strain of P. chlororaphis against Colletotrichum dematium, Colletotrichum gloeosporioides, Fusarium oxysporum f.sp. melonis, Fusarium subglutinans and Stemphylium lycopersici has been reported. Further biochemical studies showed that KNU17Pc1 was able to produce both types of phenazine derivatives, PCA and 2-OH-PCA. In addition, solid phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS) analysis identified 13 volatile organic compounds (VOCs) in the TSB culture of KNU17Pc1, 1-undecene being the most abundant volatile. Moreover, for the first time, Octamethylcyclotetrasiloxan (D4), dimethyl disulfide, 2-methyl-1,3-butadiene and 1-undecene were detected in P. chlororaphis. Furthermore, this study reported for the first time the effectiveness of P. chlororaphis to control BLSB of maize. Hence, further studies are necessary to test the effectiveness of KNU17Pc1 under different environmental conditions so that it can be exploited further for biocontrol and plant growth promotion.
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.
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.
Aphanoascus fulvescens: A New Record from Crop Field Soil in Korea
( Sun Kumar Gurung ),( Mahesh Adhikari ),( Setu Bazie ),( Hyun Seung Kim ),( Hyun Gu Lee ),( Hyang Burm Lee ),( Youn Su Lee ) 한국균학회 2017 韓國菌學會誌 Vol.45 No.2
Aphanoascus fulvescens KNU16-343 was isolated from crop field soil and identified based on morphological and molecular characteristics. The shape and size of conidia and conidiophores, as well as the internal transcribed spacer region of rDNA, confirmed that the isolate was A. fulvescens. This is the first report of this fungal species in Korea.
Three New Records of Ascomycetes Isolates from Field Soils in Korea
( Mahesh Adhikari ),( Sun Kumar Gurung ),( Hyun Seung Kim ),( Setu Bazie ),( Hyun Gu Lee ),( Hyang Burm Lee ),( Youn Su Lee ) 한국균학회 2017 Mycobiology Vol.45 No.4
Three new records of Ascomycota species (Chaetomium acropullum, Phialemonium globosum, Phialemonium atrogriseum) from field soils in Korea are presented in this study. These newly discovered fungal isolates were isolated from field soils from various places across Gyeongnam, Korea in 2016. All the isolates were identified and described based on morphological characteristics, and rDNA internal transcribed spacer and β-tubulin gene sequence data. Morphological features of these fungal species were studied on different agar media: potato dextrose agar, oatmeal agar, malt extract agar, Czapek yeast extract agar, and yeast extract sucrose agar. Full description and illustrations of their morphological characters are provided. These fungal species have not officially been previously reported 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.
Complete genome sequence of Labrys sp. KNU-23 isolated from ginseng soil in the Republic of Korea
김민지,박영준,Min-Kyu Park,Chang Eon Park,YoungJae Jo,Setu Bazie Tagele,Jae-Ho Shin 한국미생물학회 2020 미생물학회지 Vol.56 No.4
Labrys sp. KNU-23 is a Gram-negative, aerobic, rod-shaped, tryptophan-producing, urea-decomposing bacterium that was isolated from ginseng soil in Bonghwa-gun, Republic of Korea. This study reports the complete genome sequence of strain KNU-23. The complete genome comprises two circular chromosomes of 5,388,854 bp and 2,162,438 bp with a GC content of 64 and 62.1%, respectively. The whole genome was predicted to have 6,868 protein coding genes. In addition, ureadecomposing and tryptophan-producing genes that are associated with plant growth-promoting activity were identified. Therefore, Labrys sp. KNU-23 is likely to be an agriculturally useful strain.
Two New Records of Ascomycetes from Crop Field Soils in Korea
( Mahesh Adhikari ),( Hyun Seung Kim ),( Sun Kumar Gurung ),( Setu Bazie ),( Hyun Gu Lee ),( Hyang Burm Lee ),( Youn Su Lee ) 한국균학회 2017 韓國菌學會誌 Vol.45 No.3
In the ongoing survey of fungal diversity in Korea, two Ascomycetes species, namely Rhinocladiella similis and Toxicocladosporium irritans, were isolated in 2016. These species were identified based on the internal transcribed spacer region and morphological characteristics. This is the first report of these species in Korea, and the morphological characteristics and images of the fungi are presented.
Min-Kyu Park,Yeong-Jun Park,김민지,김민철,Jerald Conrad Ibal,강기웅,이규대,Setu Bazie Tagele,권혁준,강명석,김민하,김수영,신재호 한국미생물학회 2020 미생물학회지 Vol.56 No.4
Pseudarthrobacter sp. NIBRBAC000502772 is a Gram-positive, aerobic, rod-shaped, auxin-producing bacterium that was isolated from the soil of a shooting range in Hongcheon, in the Republic of Korea. The whole genome of the strain is 4,803,563 bp in length, with 65.01% G + C content and 4,450 genes. The strain contains genes related to auxin biosynthesis and heavy metal resistance. In addition, it has been found to contain genes related to denitrification of nitrite and nitrate.