Seung-Joo Go

National Institute of Agricultural Science and Technology

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Soon-Wo Kwon

Rural Development Administration

Hang-Yeon Weon

Rural Development Administration

Byung‐Yong Kim

Chong Kun Dang Bio (South Korea)

Erko Stackebrandt

Leibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures

Seung-Hee Yoo

Chung-Ang University

Dong‐Suk Park

National Institute of Agricultural Science and Technology

Hee‐Wan Kang

Hankyong National University

Chang-Hyun You

Incheon National University

Jin-Chang Ryu

Chosun University

Young‐Bok Yoo

Rural Development Administration

Cooperative Institutions

Rural Development Administration

National Institute of Agricultural Science and Technology

Seoul National University

Yonsei University

National Academy of Agricultural Science

Chungnam National University

Korea University

Sungkyunkwan University

Dankook University

Kangwon National University

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Fingerprinting of Diverse Genomes Using PCR with Universal Rice Primers Generated from Repetitive Sequence of Korean Weedy Rice

Molecules and Cells (2002)

Hee‐Wan Kang Dong‐Suk Park Seung-Joo Go Moo-Young Eun

Twenty primers of 20 mer referred to universal rice primer (URP) were developed from a repetitive sequence of rice genome. URP-PCR protocol employed stringent PCR with high annealing temperature throughout the thermo-cycling reaction, giving high reproducibility. Under the PCR condition, each single URP primer produced characteristic fingerprints from diverse genomes containing 14 plants, 7 animals and 6 microbes, indicating its universal applicability. The generality of URP-PCR was demonstrated by applying it to 15 cultivars from five rice species, 23 isolates in four Alternaria species producing host-specific toxins on different host plants and 12 bacterial strains including Escherichia coli, Salmonella spp., and Blucella abortus. PCR approach using URP primers will be useful for studying DNA diversity of most eukaryotic or prokaryotic genomes, especially at interand intraspecies levels.

Primer (cosmetics)

10.1016/s1016-8478(23)15034-5

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Citations (121)

Xanthomonas oryzae pv. oryzae genome project: whole genome sequencing.

Plant Pathology Journal (2001)

Hee‐Wan Kang Dong‐Suk Park Byoung‐Moo Lee Yong‐Jin Park Jeong-Sun Seo

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Genetic Relationships of Coprinus spp. on the Basis of Sequences in ITS II Region

The Korean Journal of Mycology (1999)

Dong‐Suk Park Seung-Joo Go Yang-Sup Kim Soon‐Ja Seok Jaekyeong Song

The internal transcribed spacer II regions (ITS II) of the ribosomal DNA gene repeat from Coprinus spp. were amplified using polymerase chain reaction (PCR) and sequenced. Sequences from 11 species including Coprinus comatus, C. atramentarius, C. micaceus, C. lagopus, C. cinereus, C. rhizophorus, C. flocculosus, C. radians, and C. echinosporus were compared. The spacer regions of them were nucleotide in length and partially contained 5.8S and 25S. The reciprocal homologies of each ITS II sequence among these strains were in the range of . According to the analysis of ITS II sequences, Coprinus spp. were classified into three clusters. Cluster I consisted of Coprinus lagopus, C. cinereus, C. echinosporus, C. rhizophorus, C. niveus, and C. atramentarius. Cluster II comprised C. micaceus, C. flocculosus, C. radians, and C. disseminatus. On the other hand C. comatus is in Cluster III even though this species is belonging to the section Coprinus in morphological aspect. These results suggest that Coprinus comatus, which was considered as a type species of the genus Coprinus in morphological classification, gives a doubt of monophyletic evolution and is assumed to be paraphyletic or polyphyletic.

Coprinus

Polyphyly

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Monophyly

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Citations (2)

PCR Assays for Detection of Pseudomonas tolaasii and Pseudomonas agarici

Mycobiology (2000)

Soon-Wo Kwon Sanghee Kim Seung-Joo Go

PCR assays were developed to detect Pseudomonas tolaasii and Pseudomonas agarici using primer sets, PTOF/PTOR and PAGF/R23-1R. The primer set, PTOF and PTOR, was designed from the nucleotide sequence of pPTOP2 that showed specificity for P. tolaasii in dot blot previously. For development of primers specific for P. agarici, ITS I regions of seven P. agarici strains were analyzed. P. agarici strains contained from one up to three putative ITS I regions, which were different in size and nucleotide sequence from each other. From the sequence of the band (PaI-III) common to all P. agarici strains, primer PAGF was designed. PAGF was used for forward primer, and R23-1R as reverse primer to detect P. agarici. Multiplex PCR with two primer sets, PTOF/PTOR and PAGF/R23-1R, successfully produced two fragments (PTSF and PASF) specific for P. tolaasii and P. agarici with the mixture of DNA of P. tolaasii and P. agarici.

Primer (cosmetics)

Multiplex

10.1080/12298093.2000.12015729

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Citations (5)

Abstracts of Presentations at the 2006 Fall Meeting of the Korean Society of Mycology at the Seoul Kyoyuk Munhwa Hoekwan, Seoul, Korea, October 19–20

Mycobiology (2006)

Yong-Bo Lee Young-Hee Na Chae-Kyu Lim In-Hoa Jang Dong-Kyoung Jang

Mycology

10.1080/12298093.2006.12016017

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Abstracts of Presentations at the 2007 Meeting of the Federation of Korean Microbiological Societies, Seoul, Korea, October 11~12th

Mycobiology (2007)

Quy Vang Le Hyun Sook Lee Hyeon‐Su Ro Sung Kyoon Woo So Hee Yun

10.1080/12298093.2007.12016069

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Phylogenetic Relationships of Genera Coprinus and Psathyrella on the Basis of ITS Region Sequences

The Korean Journal of Mycology (1999)

Dong‐Suk Park Seung-Joo Go Yang-Sup Kim Soon‐Ja Seok Jin-Chang Ryu

The internal transcribed spacer regions(ITS) of the ribosomal DNA gene repeat from Coprinus and Psathyrella spp. were amplified using polymerase chain reaction (PCR) and sequenced. Sequences from 11 species including Coprinus comatus, C. atramentarius, C. micaceus, C. cinereus, C. rhizophorus, C. radians, C. echinosporus, C. disseminatus, Psathyrella candolleana, P. spadiceogrisea and Stropharia rugosoannulata were compared. The spacer region I and II were in length respectively and partially contained 17S, 5.8S and 25S. The reciprocal homologies of ITS sequences among these strains were in the range of . According to the analysis of ITS sequences, Coprinus and Psathyrella spp. were classified into three clusters. Cluster I consisted of Coprinus lagopus, C. cinereus, C. echinosporus, C. rhizophorus, and C. atramentarius. Cluster II comprised C. micaceus, C. radians, C. disseminatus, Psathyrella candolleana, and P. spadiceogrisea. On the other hand C. comatus is in Cluster III with Stropharia rugosoannulata even though this species is belonging to the section Coprinus in morphological aspect. These results suggest that taxonomic position of Psathyrella would better be inculded in genus Coprinus. Coprinus comatus, the type species of Coprinus, gives a doubt on monophyletic evolution and is assumed to be paraphyletic or polyphyletic.

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Monophyly

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Selection of Pleurotus sajor-caju as Suitable Species for Cultivation under Summer Climatic Conditions in Korea

The Korean Journal of Mycology (1984)

Seung-Joo Go Myung-Ok Byun Chang-Hyun You Yong-Hwan Park

This experiment was performed to select the most suitable species of oyster mushroom for cultivation during summer season in Korea. The selection was made based upon mycelial growth on the ricestraw substrates, fruiting under hot weather conditions during the summer season in Korea and potential high productivity using six cultures from South-east Asia. The newly selected strain of Pleurotus sajor-caju (ASI 2070) grew well on the rice straw substrates and produced the higher yields of sporophores than other cultures tested. The primordia of the mushroom were formed between 10 to . The optimal temperature for fruiting ranged from 20 to .

Pleurotus

Primordium

Summer season

Rice straw

Winter season

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New Report on Sordarialean Fungi in Korea

The Korean Journal of Mycology (1998)

Seon-Ju Lee Jin-Chang Ryu Seung-Joo Go

Taxonomical studies of soil-borne fungi were performed. Soil samples were collected from greenhouses located in Jinju-City, Korea. Soil dilution plating method was adopted for the pure isolation. Seven ascomycetous fungi were isolated from the soil samples, and subsequently identified. Among them, five isolates, Chaetomium brasiliense, C. indicum, Corynascus sepedonium, Petriella sordida, and Thielavia fragilis have never been reported in Korea. Both teleomorphic and anamorphic states were observed in the two species, Corynascus sepedonium and Petriella sordida, and only teleomorphic state was observed in Thielavia fragilis, Chaetomium indicum, and Chaetomium brasiliense. Illustrated descriptions are presented for the isolates examined in the present study.

Chaetomium

Soil fungi

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Chitinimonas koreensis sp. nov., isolated from greenhouse soil in Korea

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY (2006)

Byung‐Yong Kim Hang-Yeon Weon Seung-Hee Yoo Wen-Ming Chen Soon-Wo Kwon

Strain R2A43-10(T) was isolated from a greenhouse soil in Korea. Cells were Gram-negative rods, motile by means of a single flagellum. Growth occurred at 10-40 degrees C and at pH 5-8. Ubiquinone-8 (Q-8) was the only respiratory lipoquinone. Major fatty acids were summed feature 3 (C(16 : 1)omega7c and/or iso-C(15 : 0) 2-OH) and C(16 : 0). 16S rRNA gene sequence analysis revealed that strain R2A43-10(T) was closely related to Chitinimonas taiwanensis cf(T) (sequence similarity of 94.8 %), but it exhibited low sequence similarities (<92 %) to other members of the Betaproteobacteria. The G+C content of the genomic DNA of strain R2A43-10(T) was 65.0 mol%. The novel isolate could be differentiated from C. taiwanensis cf(T) by several physiological properties. On the basis of genomic and phenotypic data, it is concluded that R2A43-10(T) (=KACC 11467(T)=DSM 17726(T)) is the type strain of a novel species of the genus Chitinimonas, for which the name Chitinimonas koreensis sp. nov. is proposed.

10.1099/ijs.0.64163-0

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Citations (28)